[{"id": "esrj-100324", "words": "12454", "extension": ".pdf", "flesch": "51", "author": "Belenok, Vadym; Hebryn-Baidy, Liliia; B\u0456elousova, Natalyya ; Zavarika, Halyna ; Kryachok, Serg\u00edy ; Liashenko, Dmytro ; Malik , Tetiana", "title": "Application of remote sensing methods for statistical estimation of organic matter in soils", "date": "2023", "keywords": "area; bands; content; data; et al; figure; index; kyiv; landsat; matter; model; oli; reflectance; region; satellite; sensing; soil; som; state; study; ukraine; values; vegetation", "summary": "Further, ground cover studies utilize mathematical models built upon parameters like fractional vegetation coverage, nitrogen reflectance index, yellow leaf index, bare soil index, and slope, achieving an accuracy of approximately 90% (Das et al., 2021). The impact of soil reflectance on the quanti- fication of the green vegetation fraction from NDVI.", "mime": "application/pdf"}, {"id": "esrj-100518", "words": "6623", "extension": ".pdf", "flesch": "59", "author": "Gurturk, Mert; Ilci, Veli", "title": "The performance evaluation of PPK and PPP-based Loosely Coupled integration in wooded and urban areas", "date": "2022", "keywords": "accuracy; area; errors; gnss; gnss gps; gps; height; imu; methods; positioning; ppk; ppp; satellite; solutions; urban", "summary": "Error statistics of 2D position for wooded-area 2D Position (m) Satellite-based LC-based PPK PPP PPK PPP GNSS GPS GNSS GPS GNSS GPS GNSS GPS max 0.20 0.21 0.16 0.21 0.10 0.17 0.12 0.18 average 0.03 0.04 0.04 0.06 0.03 0.04 0.03 0.05 RMSE 0.04 0.05 0.04 0.07 0.04 0.05 0.04 0.06 Table 3 gives the error statistics of the 2D position for satellite-based and LC-based solutions in the wooded area. Error statistics of height for wooded-area Height (m) Satellite-based LC-based PPK PPP PPK PPP GNSS GPS GNSS GPS GNSS GPS GNSS GPS max 0.30 0.41 0.43 0.48 0.09 0.27 0.17 0.23 average 0.08 0.10 0.10 0.12 0.02 0.04 0.03 0.05 RMSE 0.10 0.12 0.11 0.13 0.03 0.06 0.04 0.06", "mime": "application/pdf"}, {"id": "esrj-100527", "words": "6250", "extension": ".pdf", "flesch": "48", "author": "D\u00edaz, Miguel A.; M\u00e1nica, Miguel A.; Botero, Eduardo; Ovando-Shelley, Efra\u00edn; Osorio, Luis", "title": "Material damping in a stratified soil deposit", "date": "2023", "keywords": "analyses; damping; figure; flac; linear; models; motion; response; shake; shear; soil; stiffness", "summary": "Results provide relevant insights into the performance of the adopted damping formulations and the selection of material damping parameters to reproduce results of equivalent linear analyses. Results provide relevant insights into the performance of the adopted damping formulations and the selection of material damping parameters to reproduce the results of equivalent linear analyses.", "mime": "application/pdf"}, {"id": "esrj-100645", "words": "7617", "extension": ".pdf", "flesch": "51", "author": "Silva, Val\u00e9ria Cristina; Blitzkow, Denizar ; Almeida, Fl\u00e1vio Guilherme Vaz ; Matos, Ana Cristina Oliveira Cancoro; Guimar\u00e3es, Gabriel do Nascimento ", "title": "Computation and Analysis of Geopotential Number in Sa\u0303o Paulo, Brazil", "date": "2022", "keywords": "data; degree; difference; geoid; geopotential; global; gravity; height; ihrf; m2s-2; model; paulo; potential; reference; system; s\u00e3o; tide", "summary": "En este contexto, el documento tiene como objetivo contribuir con el IHRF, calculando el n\u00famero geopotencial en el \u00e1mbito del IHRF, utilizando la integraci\u00f3n num\u00e9rica para resolver el problema geod\u00e9sico de valor de frontera y un modelo cuasi-geoide reciente existente en cuatro estaciones en el estado de S\u00e3o Paulo, Brasil. The vertical coordinates are differences \u2206Wp, determined between the gravity potential at a given point P (Wp) and W0; such differences in gravity potential are also referred to as geopotential numbers (Cp).", "mime": "application/pdf"}, {"id": "esrj-100754", "words": "3979", "extension": ".pdf", "flesch": "71", "author": "Bekta\u015f, Sebahattin", "title": "Rigorous spherical bearing with Soldner coordinates and azimuth angles on sphere", "date": "2022", "keywords": "2.arctan; angle; azimuth; bearing; coordinates; formulas; meridian; soldner", "summary": "After the relationship between azimuth, bearing angle and meridian convergence is given, direct azimuth angle determination with geographical coordinates, then direct bearing angle determination with Soldner coordinates will be discussed. As it is known, the di- rections of the edges are shown with azimuth angles in the geographic coordinate system and the bearing angles in the Soldner coordinate system.", "mime": "application/pdf"}, {"id": "esrj-100856", "words": "11429", "extension": ".pdf", "flesch": "59", "author": "\u00d6zaytekin, Hasan; Uzun, Cihan; Dedeo\u011flu, Mert", "title": "Genesis, mineralogy, and geochemistry of soil profiles developed on volcanic materials under semi-arid conditions from Central Anatolia-Turkey", "date": "2024", "keywords": "allophane; andisols; clay; content; formation; horizons; low; material; matter; minerals; profiles; properties; soil; study; values; weathering", "summary": "J. Vol. 27, No. 4 (December, 2023): 425 - 436 SO IL S Genesis, mineralogy, and geochemistry of soil profiles developed on volcanic materials under semi-arid conditions from Central Anatolia-Turkey Hasan H\u00fcseyin \u00d6zaytekin1*, Cihan Uzun2, Mert Dedeo\u011flu3 1. This research aimed to assess the pedological processes and investigate the physical, chemical, and mineralogical characteristics of soil profiles developed from volcanic parent material.", "mime": "application/pdf"}, {"id": "esrj-101149", "words": "10341", "extension": ".pdf", "flesch": "50", "author": "Das Flores, Onofre; Dutra, Alanna C.; Lucas, M\u00e1rio; Abdulgani, Isac; Amisse, Caisse", "title": "Crustal and tectonic structure of Northern Mozambique inferred by 2D gravity modeling", "date": "2023", "keywords": "anomaly; crust; crustal; data; et al; figure; gravity; lithospheric; map; model; mozambique; nampula; niassa; profile; province; region; thickness; units; values", "summary": "Estructura crustal y tect\u00f3nica del norte de Mozambique inferida por modelado de gravedad en 2D RESUMEN Used anomalous magnetic field data to assess whether continental crust exists beneath the northern Natal Valley and Coastal Plains of Mozambique; Muhammed and Mula (2021), which has studied the crustal structure and its tectonic relationships, and other works that focus on the lithospheric structure and its geodynamic implications, e.g. Maia et al., 1990 used altimetry, isostatic response and gravity anomaly data to study the lithosphere of Mozambique Ridge and their results report that the local isostatic response of the lithosphere beneath the Mozambique Ridge suggests an environment on the ridge for its emplacement, assuming the ridge is oceanic.", "mime": "application/pdf"}, {"id": "esrj-101477", "words": "7599", "extension": ".pdf", "flesch": "52", "author": "de Oliveira Carvalho-Junior, Oldemar", "title": "Role of Ocean-Atmosphere Interface in Annual and Semiannual SST Cycles in the Indian Ocean", "date": "2022", "keywords": "component; current; data; figure; harmonic; indian; indian ocean; monsoon; ocean; sea; sst; surface; temperature; wind", "summary": "The isotherms are mainly meridional along the western boundary, but zonal in the southern Indian Ocean. For most of the areas of the Bay of Bengal, as well as for most of the locations in the southern tropical Indian Ocean, the entered independent variables can explain SST.", "mime": "application/pdf"}, {"id": "esrj-101556", "words": "5245", "extension": ".pdf", "flesch": "50", "author": "Leal, Jorge Alberto; Ochoa Gutierrez, Luis Hernan; Acosta Lenis, Sergio Francisco", "title": "Computer vision techniques applied to automatic detection of sinusoids in borehole resistivity imaging \u2013 A comparison with the MSD method", "date": "2023", "keywords": "borehole; computer; detection; dip; figure; image; imaging; method; msd; processing; resistivity; sinusoids; vision", "summary": "The MSD and the computer vision proposal were tested in 1012 m of borehole images, showing 7.986% of false positives for the MSD processing and 0.879% for the computer vision approach. Trace of planar feature as sinusoid in borehole image (Modified from Grace, et al., 2000).", "mime": "application/pdf"}, {"id": "esrj-102140", "words": "9054", "extension": ".pdf", "flesch": "60", "author": "Aminu, Zuni; Ibrahim, Ishiaku; Aminu, Haruna Gattah; Garba, Yauri Safyanu", "title": "Assessment of the extent of soil degradation over different land uses in the Kebbi area, northwestern Nigeria", "date": "2024", "keywords": "aminu; analysis; area; badland; degradation; erosion; et al; gully; land; loss; nigeria; plantation; slope; soil; soil degradation; study; uses; values", "summary": "J. Vol. 27, No. 4 (December 2023): 415 - 424 SO IL S ABSTRACT RESUMEN Assessment of the extent of soil degradation over different land uses in the Kebbi area, northwestern Nigeria Zuni Aminu1, Ibrahim Ishiaku1*, Haruna Gattah Aminu2, and Yauri Safyanu Garba 1 1. Assessment of the extent of soil degradation over different land uses in the Kebbi area, northwestern Nigeria.", "mime": "application/pdf"}, {"id": "esrj-102630", "words": "7117", "extension": ".pdf", "flesch": "53", "author": "Tran Dinh, Trong; Nguyen, Dinh Huy; Vu, Ngoc Quang; Nguyen, Quoc long", "title": "Crustal displacement in Vietnam using CORS data during 2018 - 2021", "date": "2023", "keywords": "coordinates; cors; cors stations; crustal; data; displacement; earth; gnss; network; position; ppp; processing; series; stations; time; velocity; vietnam", "summary": "The horizontal velocity field of TAST\u2019s CORS network in ITRF2014 35Crustal displacement in Vietnam using CORS data during 2018 - 2021l This study\u2019s velocity field was compared with previous studies, including determining the Earth\u2019s crust displacement in Vietnam through repeated GPS measurements (D. T. Tran et al., 2013), continuous GPS data (Minh et al., 2014), and CORS stations (Nguyen et al., 2021; D. T. Tran et al., 2021). In the tropospheric study, based on the relationship between the troposphere and the delay of GNSS (Global Navigation Satellite System) signals received by CORS stations, CORS station data is one of the very few reliable tools for providing continuous and precise condition about atmospheric information (Yang et al., 2020), this information is used to derive values for local atmospheric variables, which aids in weather prediction and weather monitoring (Yuan et al., 2012).", "mime": "application/pdf"}, {"id": "esrj-102683", "words": "11747", "extension": ".pdf", "flesch": "56", "author": "Charry, Carlos Jos\u00e9; Molano, Juan Carlos; Santacruz, Leonardo; Sepulveda, Janeth", "title": "Magnetic Petrology applied to the characterization of Pegmatite Dykes in Eastern Colombia", "date": "2023", "keywords": "colombia; feo; figure; hematite; host; hydrothermal; ilmenite; magnetite; oxides; pegmatite; quartz; rocks; samples; susceptibility; type; values; veins", "summary": "Quantitative results of magnetites in host rock samples. Quantitative results of ilmenites in host rock samples.", "mime": "application/pdf"}, {"id": "esrj-102843", "words": "8297", "extension": ".pdf", "flesch": "51", "author": "Mora-Galindo, Estefany Andrea; Molano Mendoza, Juan Carlos; Morales Pe\u00f1a, Milton Juli\u00e1n", "title": "Genesis and Evolution of Pegmatites in Eastern Colombia: Insights from Mineral Chemistry", "date": "2023", "keywords": "apatite; biotite; colombia; crystals; degree; et al; fig; figure; fractionation; garnet; granitic; microcline; minerals; muscovite; pegmatites; rocks; samples; tourmaline", "summary": "However, rock samples were collected within an area of 198 Km2 (Guerrero et al., 2017), between the Tabaqu\u00e9n and Macanal indigenous communities along the Guain\u00eda River (Fig. 3). This motivated a research agreement between the Universidad Nacional de Colombia and the Servicio Geol\u00f3gico Colombiano (Colombian geological service) where granitic and pegmatitic samples were collected in the eastern border of the Guain\u00eda Department, in the surroundings of San Jose, Macanal, and Tabaqu\u00e9n (Guerrero et al., 2017; Morales et al., 2017; Zarate et al., 2017).", "mime": "application/pdf"}, {"id": "esrj-102964", "words": "11140", "extension": ".pdf", "flesch": "48", "author": "Rodr\u00edguez-Ramos, Bibiana P.; Molano Mendoza, Juan Carlos; Dorado, Camilo E.", "title": "A contribution to the understanding of the origin of the Ginebra Gold District mineralizations, Colombia", "date": "2024", "keywords": "age; co2; colombia; deposits; district; et al; fia; figure; fluid; galena; ginebra; ginebra gold; gold; gold district; hydrothermal; inclusions; pyrite; quartz; sericite; temperature", "summary": "Due to the small size of the fluid inclusions in Ginebra gold mineralization, was difficult to run the spectroscopic analysis. Fluid inclusion petrography was performed using the principles given by Roedder (1984) and based on the concept of Fluid Inclusion Assemblage (FIA), which brings together a group of fluid inclusions trapped at the same time (Goldstein, 2003).", "mime": "application/pdf"}, {"id": "esrj-103047", "words": "10346", "extension": ".pdf", "flesch": "55", "author": "Boufaa, Kamel; Bougherara, Ahmed; Bouaicha, Foued; Bouzenoune, Azzedine", "title": "Quantifying Morphostructural Evolution of the Eastern Algerian Saharan Atlas (NE, Algeria) Using GIS-based Surface Envelope Technique, Drainage Network Analysis, and Geological Features", "date": "2024", "keywords": "algeria; analysis; area; atlas; basin; bouzenoune; carte; data; des; drainage; erosion; et al; evolution; g\u00e9ologique; map; network; relief; structures; study; surface; tebessa; zmax", "summary": "Apport de la gravim\u00e9trie \u00e0 l\u2019\u00e9tude de la structure du bassin de Nadhour-Saouaf-Sis- seb-El Alem (Centre de la Tunisie). El estudio emplea una metodolog\u00eda global que implica la utilizaci\u00f3n de la t\u00e9cnica de la envolvente superficial, combinada con un an\u00e1lisis de la red hidrogr\u00e1fica y del contexto geol\u00f3gico.", "mime": "application/pdf"}, {"id": "esrj-103152", "words": "9352", "extension": ".pdf", "flesch": "54", "author": "Montero-Mart\u00ednez, Mart\u00edn Jos\u00e9; Andrade-Vel\u00e1zquez, Mercedes", "title": "An overview of the connection between Earth\u2019s climate evolution and mass extinction events", "date": "2023", "keywords": "change; climate; earth; et al; evolution; extinction; global; ipcc; mass; time; warming; years", "summary": "However, the effect that global climate change has had on both the evolution and dispersal of organisms is undeniable and clear examples can be observed at shorter time scales (Frakes et al., 1992). v26n4.103152 ABSTRACT: Authors present a brief review of the potential role of climate change on mass extinction events throughout the history of the Earth.", "mime": "application/pdf"}, {"id": "esrj-103275", "words": "5752", "extension": ".pdf", "flesch": "59", "author": "Martinez L\u00f3pez, Carolina; Menjivar Fl\u00f3res, Juan Carlos; Calero Mosquera, Daniela", "title": "Estimation of soil losses due to water erosion in the Dagua River Basin, Colombia", "date": "2023", "keywords": "area; basin; colombia; dagua; del; erosion; et al; factor; river; soil; soil erosion; water", "summary": "This study aimed at estimating soil erosion in the Dagua river basin, using the universal soil loss equation (USLE). In turn, it is a process that is accelerated by the influence of anthropic activities (clean crops, planting in favor of the slope, extensive livestock, absence of conservation practices) (Amundson et al., 2015; Abdulkareem et al., 2019), and that is of great importance if one takes into account that the soil is a non-renewable natural resource Thus, world food production is threatened by soil erosion, a figure that reaches average values of 30 t ha- 1 year - 1, which leaves around 10 million hectares of unproductive farmland each year (Gachene et al., 2020).", "mime": "application/pdf"}, {"id": "esrj-103542", "words": "7747", "extension": ".pdf", "flesch": "47", "author": "Servidoni, Lucas Emanuel; Ayer, Joaquim Ernesto Bernardes; Lense, Guilherme Henrique Expedito; Rubira, Felipe Gomes; Spalevic, Velibor; Dudic, Branislav; Mincato, Ronaldo Luiz", "title": "Methodological proposal to remote detection and management of areas that are naturally vulnerable to floods", "date": "2023", "keywords": "alto; areas; basin; brazil; civil; drainage; et al; flooding; floods; gerais; hydrographic; management; minas; morphometric; risk; sapuca\u00ed; use", "summary": "There is an overlap of risk areas with Itajub\u00e1, Piranguinho, Santa Rita In addition, determining risk areas can target priority locations for investments and projects to contain floods.", "mime": "application/pdf"}, {"id": "esrj-103605", "words": "6536", "extension": ".pdf", "flesch": "40", "author": "Liu, Xuemei", "title": "A detection method of urban underground geological anomalies in the United Kingdom based on feature fusion", "date": "2022", "keywords": "anomalies; attribute; bodies; body; characteristics; data; extraction; feature; fusion; london; method; multi; paper; sheffield; space; underground; \ufffd \ufffd", "summary": "The highest fusion degree of underground space geological characteristics of London and Sheffield is 98.88% and 98.88%, respectively; 3. Integration effects of underground geological features in Sheffield, UK It can be seen from the above figure that the highest fusion degree of the method in this paper is 98.88% and 98.88% for the geological characteristics of underground space in London and Sheffield, UK.", "mime": "application/pdf"}, {"id": "esrj-103801", "words": "5569", "extension": ".pdf", "flesch": "46", "author": "Fazilova, Dilbarkhon; Arabov, Obidjon", "title": "Vertical accuracy evaluation free access digital elevation models (DEMs): case Fergana Valley in Uzbekistan ", "date": "2023", "keywords": "accuracy; alos; aster; aw3d30; data; dems; digital; elevation; fergana; gdem2; geoid; global; gps; journal; models; srtm30; uzbekistan; vertical", "summary": "El rango de correcci\u00f3n de la altura geoidal se establece entre -0.66 m y 0.87 m. Con los modelos SRTM30, ASTER GDEM2 y ALOS AW3D30 se obtuvieron los errores de ra\u00edz cuadrada media de ~10.0 m, ~16.4 m, and ~6.6 m, respectivamente. ASTER GDEM2 data has a vertical accuracy of \u00b115\u201320 m, depending on the region\u2019s environmental situation (Thomas et al.2014).", "mime": "application/pdf"}, {"id": "esrj-103872", "words": "8243", "extension": ".pdf", "flesch": "44", "author": "Zhang, Yi", "title": "Drought and Flood Disaster Control of Agricultural Land and Optimization Method of Planting Structure to Avoid Disaster", "date": "2023", "keywords": "cities; city; disaster prevention; disasters; drought; efficiency; flood control; flood disaster; flood prevention; input; jiangxi; land; model; output; output efficiency; scale; system", "summary": "The input-output efficiency refers to the relationship between farmland drought and flood disaster prevention. Construction of input-output efficiency evaluation model for drought and flood prevention of agricultural land Establishment of an evaluation index system According to the concept of input-output efficiency, the evaluation index system of farmland drought and flood disaster prevention was built in Table 2.", "mime": "application/pdf"}, {"id": "esrj-103981", "words": "6761", "extension": ".pdf", "flesch": "51", "author": "Vargas Jimenez, Carlos Alberto; Solano, Juan M.; Gulisano, Adriana M.; Santillana, Sergio; Casallas, Edwin A.", "title": "Seismic properties of the permafrost layer using the HVSR method in Seymour-Marambio Island, Antarctica", "date": "2022", "keywords": "authors; et al; figure; hvsr; island; layers; marambio; noise; permafrost; properties; ratio; response; seymour", "summary": "Keywords: H/V spectral ratio; seismic response; permafrost; Marambio; Antartic; fluids' saturation Propiedades s\u00edsmicas del permafrost a trav\u00e9s del m\u00e9todo de relaciones espectrales horizontal/vertical en la isla Seymour-Marambio de la Ant\u00e1rtida Palabras Clave: Relaciones espectrales H/V; respuesta s\u00edsmica; permafrost; Marambio; Ant\u00e1rtida; saturaci\u00f3n de fluidos Record Manuscript received: 29/07/2022 Accepted for publication: 16/08/2022 How to cite item: Vargas, C. A., Solano, J. M., Gulisano, A. M., Santillana, S., & Casallas, E. A. (2022). Rock quality, seismic velocity, attenuation, and anisotropy.", "mime": "application/pdf"}, {"id": "esrj-104250", "words": "11929", "extension": ".pdf", "flesch": "39", "author": "Karami, Shawgar; Katibeh, Homayoon; Karbala, Mohammadamin", "title": "Geostatistical Estimation and Simulation in Dam Hydrogeological and Geotechnical Research: A Comprehensive Review", "date": "2024", "keywords": "dam; dam site; data; distribution; estimate; estimation; et al; features; fracture; geostatistics; groundwater; hydraulic; kriging; leakage; permeability; rock; simulation; site; values; variogram; wpt", "summary": "Also, permeability data may indicate considerable uncertainty, indicating the complexity of spatial variability (Lin et al., 2001; Tartakovsky, 2013). Geostatistical simulation techniques can solve the smoothing effects of kriging (Ramazi and Jalali, 2015; Jalali et al., 2019).", "mime": "application/pdf"}, {"id": "esrj-104344", "words": "8250", "extension": ".pdf", "flesch": "44", "author": "Duque Gardeazabal, Nicolas; Garc\u00eda, Camila; Montoya, Juan Jos\u00e9; Bernal Quiroga, Fabio Andr\u00e9s", "title": "Improving estimates of water resources availability over North Tropical South America: comparison of two satellite precipitation merging schemes", "date": "2024", "keywords": "data; et al; fields; gauges; hydrological; idw; journal; merging; model; performance; precipitation; rainfall; satellite; streamflow; values; water", "summary": "The relation of temporal variabilities (alpha) shows that most subbasins with the RFMEP and IDW rainfall fields have very similar temporal variability (near 1.0), and the variability of the DS is higher than IDW and RFMEP variability. J. Vol. 28, No. 1 (March, 2024): 55 - 63 H Y D R O LO G Y ABSTRACT Low-density precipitation measurements impair the ability of hydrological models to estimate surface water resour- ces accurately.", "mime": "application/pdf"}, {"id": "esrj-104741", "words": "6593", "extension": ".pdf", "flesch": "57", "author": "Dai, Chunlei; Shi, Shangming; Song, Chao", "title": "Application of Random Forest method in oil and water layer identification of logging data: a case study of the Liaohe depression", "date": "2023", "keywords": "data; features; forest; layer; liaohe; method; model; number; oil; sample; water; \ufffd \ufffd", "summary": "Suppose that the proportion of samples of the kth class in the current set of samples D is pk(k = 1, 2, ...), then the information entropy of D is defined as |Y| Meet the conditions 1? Specifically, there are two ways to equalize the number of samples of each type of sample in the sample set.", "mime": "application/pdf"}, {"id": "esrj-104931", "words": "4093", "extension": ".pdf", "flesch": "48", "author": "Al-Slaty, Faten; Ibrahim, Khalil; Fayez, Sultan; Al-Dabsheh, Islam; Odeh, Taleb; Abusmier, Shereen", "title": "Influence of Adding Jordanian Scoria on the Properties of Clay-based Geopolymer", "date": "2023", "keywords": "clay; et al; geopolymer; https://doi.org/; materials; scoria; water", "summary": "References Abdullah, M. M. A. B., Ming, L. Y., Yong, H. C., & Tahir, M. F. (2018). Synthesis of geopolymer composites from a mixture of volcanic scoria and metakaolin.", "mime": "application/pdf"}, {"id": "esrj-105079", "words": "8930", "extension": ".pdf", "flesch": "56", "author": "Khoshgoftar, Mohammad Mahdi; Saradjian, Mohammad Reza", "title": "Estimation of the date and magnitude of impending massive earthquakes using the integration of precursors obtainable from remote sensing data", "date": "2025", "keywords": "anomalies; anomaly; aqua; data; date; day; density; earthquake; ion; magnitude; method; mw<8; night; nov; oct; parameters; precursors; sep; time", "summary": "This can lead to accurate estimation of earthquake parameters with respect to the number and variety of earthquake precursors. The final earthquake parameters (such as date and magnitude) can be obtained by integrating the earthquake parameters extracted from different earthquake precursors using the mean square error (MSE) method.", "mime": "application/pdf"}, {"id": "esrj-105296", "words": "9304", "extension": ".pdf", "flesch": "46", "author": "Seyrek, Eren Can; Uysal, Murat", "title": "Investigation of the performances of Support Vector Machine, Random Forest, and 3D-2D Convolutional Neural Network for Hyperspectral Image Classification", "date": "2024", "keywords": "algorithms; classification; cnn; data; dataset; et al; forest; hsi; hybridsn; hybridsn cnn; hyperspectral; hyrank; image; machine; performance; scene; sensing; svm; training", "summary": "It was observed that the performance of classification algorithms varied across datasets, with factors such as insufficient ground truth data, mixed pixels, and spectral similarity between classes affecting classification performances. HybridSN CNN (Roy et al., 2019) was chosen as the CNN architecture, but in light of literature suggesting that employing various activation functions and optimizers can enhance classification performance (Agarwal et al., 2021; Bera & Shrivastava, 2020; Dubey et al., 2022; Hao et al., 2020; Seyrek & Uysal, 2024; Vani & Rao, 2019), a modified version called Modified HybridSN was developed, integrating Mish activation function (Misra, 2019) and Adamax optimizer (Kingma & Ba, 2014).", "mime": "application/pdf"}, {"id": "esrj-105459", "words": "9807", "extension": ".pdf", "flesch": "49", "author": "Apeh, Ojima Isaac; Tenzer, Robert; Pham, Luan Thanh; Ozuah, Zimuzo Hedinkpa", "title": "Estimation of the sediment thickness beneath the Southern Benue Trough in Nigeria by using gravity and borehole data", "date": "2023", "keywords": "area; basement; benue; data; density; depths; et al; gravity; gravity data; model; nigeria; residual; sediment; sediment thickness; southern; study; thickness; trough; \ufffd \ufffd", "summary": "Adighije (1976; 1979; 1981a; 1981b) estimated the sediment thickness in the Southern BT by interpreting gravity data. The extracted residual terrain effects and a stochastically determined systematic bias of -0.4 mGal (Apeh and Tenzer, 2022) were algebraically added to the computed absolute gravity data to realize gravity data that fit a local gravity field.", "mime": "application/pdf"}, {"id": "esrj-105689", "words": "7211", "extension": ".pdf", "flesch": "51", "author": "P\u00e1ramo, Mar\u00eda Eur\u00eddice; Benavides-Cabra, Cristian David; Palma-Castro, H\u00e9ctor Daniel; Casta\u00f1eda-G\u00f3mez, Antonio Jos\u00e9 ", "title": "Procumbent anterior premaxillary teeth in Stenorhynchosaurus munozi (Plesiosauria, Pliosauridae), evidence from new material", "date": "2023", "keywords": "alveolus; anterior; colombia; cretaceous; et al; fig; fonseca; munozi; premaxillary; p\u00e1ramo; specimen; stenorhynchosaurus; teeth", "summary": "La presencia de este rasgo resalta la estrecha relaci\u00f3n de S. munozi con otros brachauqueninos del Cret\u00e1cico Inferior de Rusia derivados tempranamente. The presence of anterior procumbent teeth in the premaxilla of the Barremian taxon S. munozi from Colombia has significant implications in the temporal distribution of this trait in the history of long-snouted brachauchenines.", "mime": "application/pdf"}, {"id": "esrj-105868", "words": "6429", "extension": ".pdf", "flesch": "53", "author": "Ekwok, Stephen E.; Eldosouky, Ahmed M.; Ben, Ubong C.; Achadu, Ogiji-Idaga M.; Akpan, Anthony E.; Othman, Abdullah; Pham, Luan Thanh", "title": "An integrated approach of advanced methods for mapping geologic structures and sedimentary thickness in Ukelle and adjoining region (Southeast Nigeria)", "date": "2023", "keywords": "data; ekwok; et al; fig; geologic; nigeria; pham; structures; ukelle; y \ufffd; \ufffd \ufffd", "summary": "Depth estimation method The TD technique is based on the relationship between tilt angle derivative (TDR) (Miller and Singh, 1994), horizontal position and depth of a vertical 2-D contact as (Salem et al., 2007): TDR F z F x F y \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd \ufffd\ufffd atan 2 2 (6) and TDR h z c == atan (7) where zc is the contact depth, and h is the horizontal location. Previous studies in the Lower Benue Trough using magnetic data with low resolution obtained by Geological Survey of Nigeria (GSN) in 1974, were centered on the mapping of major intrusive structures, fault systems, stratigraphy, sediment thickness, spatial distribution of igneous intrusions, and delineation of depo-centres (Oha et al., 2016; Ofoegbu, 1984; Ofoegbu and Mohan, 1990).", "mime": "application/pdf"}, {"id": "esrj-105872", "words": "8049", "extension": ".pdf", "flesch": "57", "author": "Mahetaji, Mohatsim; Brahma, Jwngsar; Kumar Vij, Rakesh", "title": "Multivariable Regression 3D Failure Criteria for In-Situ Rock", "date": "2023", "keywords": "coulomb; criteria; criterion; data; failure; failure criterion; linear; mogi; mpa; principal; regression; rmse; rock; stress; triaxial", "summary": "Furthermore, failure criteria are introduced after considering the effect of intermediate principal stress, such as the Drucker and Prager criterion (Drucker and Prager, 1952) and the Lade criterion (Kim and Lade, 1984). Other rock triaxial testing data also validate failure criterion based on the experiment data by Haimson and Chang (2000), Chang and Haimson (2000), Takahashi and Koide (1989), and Xiaodong and Haimson (2016).", "mime": "application/pdf"}, {"id": "esrj-105917", "words": "6742", "extension": ".pdf", "flesch": "61", "author": "Shah, Syed Bilawal Ali", "title": "Integrated Interpretation of Eocene-Palaeocene Rocks in Potwar Basin, Pakistan: Implications for Petroleum Generation", "date": "2023", "keywords": "basin; et al; formation; oil; pakistan; patala; petroleum; potential; potwar; sakesar; shah; source; toc", "summary": "Map showing location of wells and major tectonic structures of Potwar Basin (after Shami and Baig, 2002; Zahid et al., 2014; Shah and Abdullah, 2016; Shah and Abdullah, 2017; Shah et al., 2019). Previous studies by researchers such as Ihasn et al. (2022), Nazir et al. (2014), Shah et al. (2021), Fazeelat et al. (2010), Shah (2017), Nazir et al. (2015), H et al. (2021), and Masood et al. (2017) focused on different formations and used various techniques to evaluate them, including modelling the structure with faults for salt diapirs and studying specific formations like Sakesar, Tobra, and Khewra.", "mime": "application/pdf"}, {"id": "esrj-106442", "words": "4650", "extension": ".pdf", "flesch": "55", "author": "Eriskin, Hale; Terzi, \u00d6zlem", "title": "Estimation of evaporation from the water surface using the norm operator", "date": "2023", "keywords": "ann; data; evaporation; e\u011firdir; input; lake; layer; models; norm; operator; output; parameters; set; water", "summary": "The values obtained by the function are used as input parameters in the N-ANN method. Identifying surface water evaporation loss of inland river basin based on evaporation enrichment model.", "mime": "application/pdf"}, {"id": "esrj-106532", "words": "6084", "extension": ".pdf", "flesch": "51", "author": "Xiao, Zhetao; Zhao, Donghui; Hao, Lijun", "title": "Analysis of Green Infrastructure Network Pattern Change in Zhengzhou Central City Based on Morphological Spatial Pattern Analysis", "date": "2023", "keywords": "analysis; area; central; city; connectivity; construction; core; core area; green; infrastructure; landscape; level; mspa; network; river; zhengzhou", "summary": "Based on the evaluation of landscape connectivity of seven types of landscape elements in Zhengzhou in 2019, the classification of core areas and the extraction of potential ecological corridors were carried out, and the GI planning strategy of Zhengzhou central city was put forward. The area of core area decreased from 449.856 km2 in 2007 to 185.724 km2 in 2019, the ratio to total GI area decreased from 70.68% in 2007 to 42.69% in 2019, and the ratio to the total area of the central city decreased from 45.44% in 2007 to 18.76% in 2019, meaning a significant decrease.", "mime": "application/pdf"}, {"id": "esrj-106550", "words": "7800", "extension": ".pdf", "flesch": "38", "author": "Boudjema, Abderrezzak; Guettaia, Sabrine; Derdour, Abdessamed; Brinis, Nafaa; Almaliki, Abdulrazak", "title": "Statistical approaches for the identification of the origin mineralization groundwaters: case of the Naama Region, Far West-Algeria", "date": "2025", "keywords": "algeria; analysis; area; chemical; data; derdour; diagram; formations; gibbs; groundwater; groundwater quality; mineralization; naama; processes; quality; recharge; region; samples; study", "summary": "With challenges such as climate variability, desertification, and urban expansion, the Wilaya of Naama emphasizes the need to maintain groundwater recharge rates and protect water quality for sustainable use in agriculture, drinking, and ecosystem support. These wooded regions are essential for sustaining the natural equilibrium of groundwater replenishment and safeguarding water quality.", "mime": "application/pdf"}, {"id": "esrj-106588", "words": "5574", "extension": ".pdf", "flesch": "47", "author": "Nadjai, Saci; Khammar, Hichem; Boulebaiz, Mahreez ; Nabed, Abdelkader Nadir; Benaabidate, Lahcen", "title": "Sensitivity Analysis and GIS Tools for Groundwater Vulnerability Assessment. (Application in the Middle Chellif Plain, Algeria)", "date": "2024", "keywords": "algeria; analysis; aquifer; area; cheliff; groundwater; index; map; method; middle; parameters; plain; pollution; sensitivity; study; table; vulnerability", "summary": "The \u201csingle parameter sensitivity analysis\u201d test was designed in order to evaluate the effect of DRASTIC parameters on the vulnerability index. Assessment of groundwater pollution vulnerability, hazard and risk in a semi-arid region.", "mime": "application/pdf"}, {"id": "esrj-107002", "words": "7935", "extension": ".pdf", "flesch": "41", "author": "Umaru, Aliyu; Okunlola, Olugbenga; Adamu Danbatta, Umaru; Olusegun G., Olisa", "title": "Mapping hydrothermal alterations and associated lineaments within Kaiama, north-central Nigeria, using Landsat 8 Operational Land Imager Data and Digital Elevation Model", "date": "2024", "keywords": "alteration; area; band; data; figure; hydrothermal; image; iron; journal; landsat; lineaments; mapping; mineralization; minerals; nigeria; sensing; study; zones", "summary": "Within the study region, there has been a limited exploration of remotely sensed data for the identification of hydrothermal alteration zones, which could serve as a valuable tool for regional exploration to unlock the full mineralization potential of the area. The primary objective of this study is to utilize remote sensing methods, specifically leveraging Landsat 8 OLI data and a digital elevation model, on an expansive scale to systematically delineate hydrothermal alteration zones and tectonic lineaments within the study area.", "mime": "application/pdf"}, {"id": "esrj-107056", "words": "5600", "extension": ".pdf", "flesch": "55", "author": "Tan, Hao; Yu, Xuexiang; Zhu, Mingfei; Chi, Shenshen; Liu, Chao; Chen, Hengzhi", "title": "Study on large-gradient deformation of mining areas based on InSAR-PEK technology", "date": "2023", "keywords": "data; deformation; insar; maximum; method; mining; monitoring; pek; period; subsidence; subsidence values; technology; time; values", "summary": "However, the predicted values by the InSAR method were close to the measured values, which can be used to independently get subsidence values in the main period from SAR data. In the case of large-gradient deformation of the working panel, compared with the subsidence values extracted by D-InSAR technology, the subsidence values predicted by InSAR-PEK method were close to the measured values, which could provide a feasible method for SAR data to independently obtain subsidence values in the main subsidence period.", "mime": "application/pdf"}, {"id": "esrj-107251", "words": "8496", "extension": ".pdf", "flesch": "52", "author": "Zarif Mahdizadeh, Eilnaz; Beitollahi , Ali; Zarif Mahdizadeh, Sanaz", "title": "Geoelectrical investigation to delineate potential aquifers in Shahroud, Iran", "date": "2024", "keywords": "aquifer; area; bedrock; depth; figure; groundwater; map; maps; meters; method; potential; region; resistance; resistivity; shahroud; sounding; study; thickness", "summary": "Another advantage of using the T method is that according to the selected fixed depth, it is possible to draw electrical resistivity maps for each depth horizon (Dimitrev et al., 1998). Mapping the intrusion of saltwater (Abdul Nasir et al., 2000), identifying saltwater/freshwater interface (El-Waheidi et al., 1992; Van Dam and Meulenkamp, 1967) and characterizing hydrogeological (Al-Fares, 2016) can be determined by electrical resistivity method.", "mime": "application/pdf"}, {"id": "esrj-107274", "words": "9596", "extension": ".pdf", "flesch": "47", "author": "Husainy, Siti Nurkhalidah; Bery, Andy Anderson; Abir, Ismail Ahmad; Lestari, Wien; Akingboye, Adedibu Sunny", "title": "Landslide susceptibility mapping of Penang Island, Malaysia, using remote sensing and multi-geophysical methods", "date": "2023", "keywords": "area; bery; data; datasets; et al; factors; fig; gravity; island; landslide; landslide susceptibility; malaysia; map; mapping; methods; models; occurrence; penang; penang island; sensing; slope; soil; study; surface; susceptibility", "summary": "Landslide susceptibility map of Penang Island, Malaysia. Delineation of landslide hazard areas on Penang Island, Malaysia, by using frequency ratio, logistic regression, and ar- tificial neural network models.", "mime": "application/pdf"}, {"id": "esrj-107538", "words": "9043", "extension": ".pdf", "flesch": "52", "author": "Mart\u00ednez, Amancay; Gallardo, Adrian; Mul\u00e9, Melisa; Giaccardi, Aldo; Crespo, Esteban; Aguilera, David", "title": "New insights into the Permian-Triassic magmatism of southern Cerro Cacheuta, Argentina", "date": "2024", "keywords": "arc; argentina; cacheuta; cerro; choiyoi; del; diagram; elements; et al; figure; group; late; magmatism; mendoza; permian; pluton; rocks; samples; triassic; volcanic", "summary": "Las rocas monzo- n\u00edticas del sector oriental del plut\u00f3n de Cacheuta, Precordillera mendo- cina: caracter\u00edsticas geoqu\u00edmicas y edad Las monzodioritas y monzogabros de Cacheuta, Mendoza: edad, petrolog\u00eda e implicancias.", "mime": "application/pdf"}, {"id": "esrj-107646", "words": "5866", "extension": ".pdf", "flesch": "55", "author": "Hassan, Asem", "title": "Influence of Compaction on Electrical Resistivity Characteristics of Fine-grained Soil East of Baghdad City, Iraq", "date": "2023", "keywords": "astm; compaction; duw; figure; influence; levels; relationship; resistivity; soil; specimens", "summary": "J. Vol. 27, No. 2 (June, 2023): 169 - 182 G EO TE C H N IC S Manuscript received: 06/03/2023 Accepted for publication: 10/07/2023 Influence of Compaction on Electrical Resistivity Characteristics of Fine-grained Soil East of Baghdad City, Iraq Asem A. Hassan College of Science, University of Diyala, Iraq Corresponding author: asem.ahmed@uodiyala.edu.iq ABSTRACT Keywords: Soil compaction; Resistivity; Geotechnical properties In geotechnical practice, there is a continuous demand for an efficient method for measuring the soil moisture content and dry unit weight of compacted soils used in a wide range of earthwork constructions. Therefore, using the ER method as a rapid and cost-effective technique for the preliminary evaluation of soil compaction variables in earthwork constructions is recommended.", "mime": "application/pdf"}, {"id": "esrj-107766", "words": "8006", "extension": ".pdf", "flesch": "52", "author": "Shah, Syed Bilawal Ali; Ismail, Khaira; Wan Bakar, Wan Zairani", "title": "Integrated Analysis of the Eocene Sakesar Formation: Depositional Environment, Microfacies, Geochemistry, and Reservoir Characteristics in the Potwar Basin, Pakistan", "date": "2024", "keywords": "analysis; basin; et al; formation; hydrocarbon; limestone; microfacies; pakistan; petroleum; potential; potwar; reservoir; rock; sakesar; samples; shah; source; toc", "summary": "v28n1.107766 Keywords: Sakesar Formation; Potwar Basin; Depositional environment; microfacies. Sakesar Formation sediments characteristics interpretation showed that it can act as both source rock and reservoir rock in the Potwar Basin.", "mime": "application/pdf"}, {"id": "esrj-108083", "words": "4071", "extension": ".pdf", "flesch": "42", "author": "Lu, Guanyao", "title": "Ecological restoration strategies of rock-soluble stone desertification regions under the background of big data and the Internet of Things", "date": "2023", "keywords": "area; desertification; environment; graphite; problem; restoration; rock; soil; southwest; stone; stone desertification", "summary": "J. Vol. 27, No. 2 (June, 2023): 163 - 168 EN V IR O N M EN TA L G EO LO G Y Manuscript received: 29/03/2023 Accepted for publication: 18/07/2023 Ecological Restoration Strategies of Rock-Soluble Stone Desertification Regions under the Background of Big Data and the Internet of Things Guanyao Lu * School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China * Corresponding author: guanyaolu@fosu.edu.cn ABSTRACT Keywords: big data; Internet of Things; rock- soluble stone desertification; ecological repair; comprehensive governance; southwestern China; These areas that are developing in stone desertification ecological issues account for approximately 1.25 million square kilometers.", "mime": "application/pdf"}, {"id": "esrj-108292", "words": "13603", "extension": ".pdf", "flesch": "49", "author": "Benavides-Cabra, Cristian David; P\u00e1ramo-Fonseca, Mar\u00eda Eur\u00eddice; Palma-Castro, H\u00e9ctor Daniel; Narv\u00e1ez-Rinc\u00f3n, Jos\u00e9 Alejandro; Ramos-Clavijo, Maria Paula", "title": "Stratigraphic distribution of marine vertebrates of the arcillolitas abigarradas member (Paja Formation) from the Villa de Leiva \u2013 S\u00e1chica - Sutamarch\u00e1n region, Boyac\u00e1, Colombia", "date": "2023", "keywords": "1968a; abigarradas; ammonoids; aptian; arcillolitas; barremian; colombia; concretions; data; etayo; fcg; fig; fonseca; layers; leiva; member; meters; provenance; p\u00e1ramo; section; segment; serna; specimen; villa", "summary": "Stratigraphic sections from Villa de Leiva LA CABRERA SECTION Introduction In the localities of Villa de Leiva, S\u00e1chica, and Sutamarch\u00e1n, abundant marine vertebrate fossils have been found, all of which come from the Arcillolitas abigarradas Member of the Paja Formation of Barremian-Aptian in age (Cadena, 2015; Cadena and Parham, 2015; Cadena et al., 2019; Carrillo- Brice\u00f1o et al., 2019; Cort\u00e9s and P\u00e1ramo-Fonseca, 2018; Cort\u00e9s et al., 2019; 2021; G\u00f3mez-P\u00e9rez and No\u00e8, 2017; Maxwell et al., 2016; 2019; No\u00e8 and G\u00f3mez-P\u00e9rez, 2022; P\u00e1ramo-Fonseca, 2015; P\u00e1ramo-Fonseca et al., 2016; 2018; 2019a; 2019b; 2021; 2023; Schultze and St\u00f6hr, 1996), This material includes mainly marine reptiles (plesiosaurs, ichthyosaurs, turtles, and a crocodylomorph) and some fishes.", "mime": "application/pdf"}, {"id": "esrj-108296", "words": "8230", "extension": ".pdf", "flesch": "68", "author": "Tu, Wei", "title": "Early Paleoproterozoic continental crust magmatism in the Xueye area, Western Shandong, China: Evidence from U-Pb age and trace element geochemistry of zircon", "date": "2025", "keywords": "china; continental; fig; grains; sample; shandong; tio; trace; zircon", "summary": "In Figures (a) to (f), 1 means continental crust zircon, 2 means ocean crust zircon. Crustal growth in the Nor- th China Craton at ~ 2.5 Ga: Evidence from in situ zircon U\u2013Pb ages, Hf isotopes and whole-rock geochemistry of the Dengfeng complex.", "mime": "application/pdf"}, {"id": "esrj-108506", "words": "10012", "extension": ".pdf", "flesch": "51", "author": "PaulGautier, Kamto; Oksum, Erdinc; Lemotio, Willy; Kamguia, Joseph", "title": "Structural mapping of the Goulfey-Tourba (West and Central African Rift) sedimentary basin using high-resolution gravity data", "date": "2023", "keywords": "area; basin; central; data; density; disturbances; et al; features; field; figure; geophysics; gravity; map; method; model; potential; results; sources; study", "summary": "On the other hand, the detection techniques of geological lineaments are widely and increasingly used in structural geophysics (Kamto et al., 2021; Pham et al., 2021; Eldosouky et al., 2021,2022a; Ekwok et al., 2021; al., 2022; Ekka et al., 2022; Kamto et al., 2023a). For decades, new edge detection methods have been developed by researchers to provide better results in the mapping of structural features, and to avoid the occurrence of extraneous noise which could be assigned to geological features (Wijns et al., 2005; Cooper and Cowan, 2006; Tatchum et al., 2011; Oksum et al. (2021); Pham, 2021; Melouah and Pham, 2021; Pham et al., 2022; Prasad et al., 2022).", "mime": "application/pdf"}, {"id": "esrj-108562", "words": "9194", "extension": ".pdf", "flesch": "58", "author": "Sarwar, Umair; Ghazi, Shahid; Ali, Syed Haroon; Mehmood, Mubashir; Jahangir Khan, Muhammad; Zaheer, Arslan; Arif, Syed Jawad", "title": "Sedimentological and sequence stratigraphic analysis of Late Eocene Kirthar Formation, Central Indus Basin, Pakistan, Eastern Tethys", "date": "2024", "keywords": "ali; basin; domanda; drazinda; eocene; figure; formation; habib; kirthar; level; limestone; matrix; member; microfacies; mudstone; nala; packstone; pakistan; pirkoh; rahi; sea; shale; sulaiman", "summary": "4.2 Lithostratigraphy of Kirthar Formation in Rakhi Nala Section Member of the Kirthar Formation from old to young: \u2022 Drazinda Member \u2022 The upper contact of the unconformable Kirthar Formation is situated in the \u201cDrazinda Member\u201d and underlying sandstone sequences of the Chitarwatta Formation.", "mime": "application/pdf"}, {"id": "esrj-108925", "words": "7614", "extension": ".pdf", "flesch": "43", "author": "Mohammadi, Ebrahim; Ghaedi, Mehdi", "title": "Diversity and paleoecological significance of zooxanthellate corals of Oligocene Qom Formation, SE Iran ", "date": "2024", "keywords": "algae; bozdan; carbonate; corals; energy; formation; gonarestan; hallock; iran; miocene; mohammadi; oligocene; qom; sections; tavakolabad", "summary": "Reuter et al. (2009) studied scleractinian corals from Abadeh and Zefreh sections (in the fore-arc Basin) and Chalehghareh and Qom sections (in the back-arc Basin). During the Oligocene-Miocene, the biogeography of reef corals progressively changed from the Tethyan Province in the Eocene to three reef-coral provinces: the Mediterranean, the Indo-Pacific, and the western Atlantic-Caribbean (Perrin and Bosellini, 2012; Pomar et al., 2014).", "mime": "application/pdf"}, {"id": "esrj-109054", "words": "11476", "extension": ".pdf", "flesch": "50", "author": "Olaojo, Abayomi Adesola; Oladunjoye, Michael Adeyinka", "title": "Geo-spatial sensing of physical properties a leeway to agricultural soil assessment ", "date": "2024", "keywords": "analysis; cacao; clay; cmol; concentration; conductivity; content; eca; et al; field; figure; low; mean; mineral; properties; quartz; region; resistivity; rock; samples; soil; water", "summary": "The mapping of soil ECa provides valuable information about changes in soil conditions and highlights areas warranting heightened attention. Soil electrical conductivity is useful in assessing soil mineralogy, soil texture, nutrients, temperature, field holding capacity, chemical properties, and soil moisture; these variables play a vital role in plant development.", "mime": "application/pdf"}, {"id": "esrj-109067", "words": "5201", "extension": ".pdf", "flesch": "45", "author": "Antosia, Risky Martin", "title": "A comparative study of vertical geoelectrical arrays in delineating shallow subsurface properties", "date": "2025", "keywords": "arrays; dipole; electrode; figure; resistivity; schlumberger; subsurface; vertical; wenner", "summary": "Comparative analyzes among electrical resistivity tomography arrays in the characterization of flow structure in free aquifer. J. Vol. 29, No. 1 (March, 2025): 81 - 88 G EO PH Y SI C S A comparative study of vertical geoelectrical arrays in delineating shallow subsurface properties Risky Martin Antosia Department of Geophysical Engineering, Sumatera Institute of Technology, Jalan Terusan Ryacudu, Way Huwi, Jati Agung, Kabupaten Lampung Selatan, Lampung, Indonesia.", "mime": "application/pdf"}, {"id": "esrj-110128", "words": "10796", "extension": ".pdf", "flesch": "53", "author": "\u00c7inar, Tunahan; Aydin, Abdurrahim", "title": "Exploring the Potential of the Google Earth Engine (GEE) Platform for Analysing Forest Disturbance Patterns with Big Data", "date": "2024", "keywords": "analysis; areas; classification; data; detection; drought; earth; engine; et al; forest; gee; google; imagery; index; los; platform; satellite; sensing; severity; study; vci; vegetation; wildfire; windthrow", "summary": "Inter Comparison of Post-Fire Burn Severity Indices of Landsat-8 and Sentinel-2 Imagery Using Google Earth En- gine. Rezaei, M. M. H., Valizadeh, K. K., Rostamzadeh, H., & Rezaei, A. (2014).", "mime": "application/pdf"}, {"id": "esrj-110328", "words": "8369", "extension": ".pdf", "flesch": "47", "author": "Ibuot, Johnson Cletus; Obiora, Daniel; Ekpa, Moses; Omeje, Emmanuel", "title": "Geo-electric techniques for estimating and mapping the electro-geohydraulic properties of the shallow aquifer within the Nsukka Formation in eastern Nigeria", "date": "2024", "keywords": "aquifer; area; et al; figure; groundwater; hydraulic; ibuot; nigeria; parameters; porosity; properties; resistivity; study; subsurface", "summary": "Voids, pore spaces and fractures play pivotal roles in groundwater studies, influencing the flow dynamics within subsurface formations. A graph of (a) hydraulic conductivity against fractional porosity, (b) permeability against fractional porosity, (c) hydraulic conductivity against aquifer resistivity, (d) fractional porosity against aquifer resistivity, (e) formation factor against fractional porosity.", "mime": "application/pdf"}, {"id": "esrj-110499", "words": "8533", "extension": ".pdf", "flesch": "58", "author": "G\u00f3mez G\u00f3mez, Duban Esteban; Mart\u00ednez Ardila, Ana Mar\u00eda; Molano Mendoza, Juan Carlos", "title": "Chemical constraints and tectonic setting of the Ginebra ophiolite complex", "date": "2024", "keywords": "0,01; 0,02; amaime; batholith; buga; colombia; complex; del; elements; figure; ginebra; goc; ophiolites; pearce; piedra; puente; rocks; tectonic", "summary": "Cluster analysis, used to compare the geochemistry of GOC rocks and the Amaime Complex basalts, suggests a similar magma source, possibly linked to multiple recharge events that underwent fractional crystallization, melt extraction, and accumulation processes. This idea is supported by 40Ar-39Ar ages for GOC rocks, revealing a 140.28\u00b13.12 Ma age (in clinopyroxene) for a gabbronorite, interpreted as the crystallization age, and an age of 90.84\u00b10.78 Ma (in hornblende) for an amphibolite, interpreted as the reworking age of the GOC due to the syntectonic crystallization of the Buga Batholith.", "mime": "application/pdf"}, {"id": "esrj-110855", "words": "4554", "extension": ".pdf", "flesch": "50", "author": "Suarez Maldonado, Randy Javier; Pajaro Miranda, Cesar Augusto", "title": "Coal ash as a natural additive for subgrade stabilization in the construction of low-volume traffic roads", "date": "2024", "keywords": "ash; ashes; astm; coal; coal ash; colombia; estabilizaci\u00f3n; figure; limit; properties; results; soil; stabilization; subgrade", "summary": "Valoraci\u00f3n de las cenizas de carb\u00f3n para la estabilizaci\u00f3n de Suelos mediante activaci\u00f3n alcalina y su uso en v\u00edas no pavimentadas. Estabilizaci\u00f3n de subrasante de v\u00edas en suelos expansivos con cloruro de sodio\u2013Avenida Jacinto Ibarra, distrito de Chilca-Huancayo.", "mime": "application/pdf"}, {"id": "esrj-110897", "words": "6718", "extension": ".pdf", "flesch": "49", "author": "Rawat, Kishan Singh", "title": "Monitoring land subsidence in an urban area of Tamilnadu, India using SAR time series data", "date": "2025", "keywords": "area; coherence; data; displacement; et al; fig; groundwater; height; india; land; point; radar; sar; study; subsidence; time; urban; velocity", "summary": "In addition, areas of substantial coal, ore, or other mineral extractions are more prone to subsidence (Gupta et al. 2020; Ishwar et al. 2017; Guang et al. 2009; Miao et al. 2008).A prevalent phenomenon of land subsidence is due to a number of underground mining operations including the excessive exploitation of coal, minerals, groundwater, and petroleum products as well as the collapse of existing galleries and the flooding of abandoned ones (Jianjun et al. 2012; Chatterjee et al. 2006). Natural and human activities can both lead to land subsidence.", "mime": "application/pdf"}, {"id": "esrj-111269", "words": "6695", "extension": ".pdf", "flesch": "56", "author": "Suarez Valencia, Javier Eduardo; Guerrero-Guti\u00e9rrez, Daniela Alexandra; Soler-Aragon, Natalia Katherine; Ramirez-Diaz, Daniel Felipe; Nocua-Ben\u00edtez, Iv\u00e1n Alexis; Escobar-Tarazona, Camilo Andr\u00e9s; Gomez-Ruiz, Jos\u00e9 David", "title": "Hydrologic evolution of two Martian deltas in the Ismenius Cavus system ", "date": "2024", "keywords": "activity; aracataca; ariguani; cavus; channels; crater; delta; figure; groundwater; hydrologic; ismenius; mars; networks; system; units; valley; zone", "summary": "Valley networks are recognized across the area surrounding Ismenius Cavus and seem to be dissected by the Mamers Valles main channel. La transformaci\u00f3n de los sistemas h\u00eddricos de Ismenius Cavus fueron establecidos al analizar los cambios en los pulsos deltaicos a trav\u00e9s del tiempo.", "mime": "application/pdf"}, {"id": "esrj-111372", "words": "11404", "extension": ".pdf", "flesch": "47", "author": "Herrera Ceferino, Maura Melissa; Fern\u00e1ndez, David Stephen; V\u00e9lez, Fabio de Jes\u00fas; Aguirre, N\u00e9stor Jaime", "title": "Temporal analysis of land cover change in Ayapel's alluvial gold mining zones, Colombia", "date": "2025", "keywords": "analysis; areas; ayapel; classes; classification; cover; figure; images; index; land; landsat; medium; mining; mining soil; monitoring; savi; sensing; soil; study; veg; vegetation; water; years", "summary": "On the other hand, regarding the changes in coverage, the multitemporal analysis from 2016 to 2020 shows that areas initially classified as \u201cMining soil\u201d exhibit two main trends: a significant persistence as mining soil over the years, which is consistent with areas of ongoing exploitation, and a notable transition to \u201cLow veg\u201d (low vegetation), possibly associated with partial recovery processes or the abandonment of mining areas. In the case of Colombia, the majority of studies monitoring mining areas using this technique have focused on pollution monitoring, aiming to identify impacts of mining activities on water bodies (Quejada Palacios, 2019; Uribe Ospina, 2019), for instance, through the detection of high presence of suspended solids (Gonz\u00e1lez, 2015); or impacts on vegetation cover, through measuring the level of forest fragmentation (Anaya & Diaz, 2016; Suarez Prada, 2019).", "mime": "application/pdf"}, {"id": "esrj-111383", "words": "19060", "extension": ".pdf", "flesch": "25", "author": "Cruz Guevara, Luis Enrique; Cruz-Ceballos, Luis Felipe; Avenda\u00f1o-Sanchez, Gladys Marcela", "title": "General classification and nomenclature of sedimentary deposits and rocks, a review", "date": "2024", "keywords": "accumulation; biogenic; boggs; breccias; carbonate; chemical; classification; clastic; collapse; component; cruz; depositional; deposits; derived; diagenetic; et al; figure; folk; formation; fragmentation; fragments; friedman; general; geology; lithic; luis; materials; minerals; phosphate; precipitation; processes; products; quartz; regolith; rfs; rocks; sanders; science; sedimentary; sedimentites; silicate; structures; table; weathering; wright", "summary": "Clastic sedimentary deposits or rocks, where sedimentary particles are more than 50% of the deposits or rocks. Unlike clastic sedimentary deposits, which are composed of sediments (mineral and rock fragments, etc.), chemical deposits are created by the direct chemical precipitation of minerals, often from evaporating or supersaturated solutions.", "mime": "application/pdf"}, {"id": "esrj-111479", "words": "6780", "extension": ".pdf", "flesch": "59", "author": "Pham, Luan Thanh; Nasuti, Yasin", "title": "Using potential field derivatives in the arctangent function to estimate the edges and relative depths of potential field sources", "date": "2024", "keywords": "anomalies; area; bodies; data; edges; et al; field; figure; filter; map; methods; pham; potential; sources", "summary": "Many filters of potential field data have been developed to estimate the source location (Nabighian, 1972, 1974; To filter potential field data using various techniques, efforts have been made to balance the trade-off between noise and signal in the filtered image (Cooper and Cowan, 2006).", "mime": "application/pdf"}, {"id": "esrj-111726", "words": "8349", "extension": ".pdf", "flesch": "44", "author": "Yimer, Alemeshet Kebede; Hatiye, Samuel Dagalo; Haile, Alemseged Tamiru", "title": "Intercomparison of multisource actual evapotranspiration satellite products in Bilate watershed, Ethiopia", "date": "2024", "keywords": "aet; aet products; bilate; climate; coefficient; correlation; crop; data; et al; evapotranspiration; fao; global; modisssebop; products; rainfall; reference; satellite; values; wapor; watershed", "summary": "Drawing parallels with recent trends in satellite rainfall product research, there is an imperative need to explore methodologies to reconcile these systematic differences in satellite AET products. Yet, the accuracy of AET products remains unknown for many regions, prompting further investigation to guide selection.", "mime": "application/pdf"}, {"id": "esrj-112066", "words": "7056", "extension": ".pdf", "flesch": "52", "author": "Idris Augie, Abdulrahaman; Adeyinka Salako, Kazeem; Anderson Bery, Andy; Abdulwaheed Rafiu, Adewuyi; Owolabi Jimoh, Mufutau", "title": "Integrated Geophysical Investigation using Aero-radiometric and Electrical Methods for Potential Gold mineralization within Yauri/Zuru Schist Belts, Kebbi State NW Nigeria ", "date": "2024", "keywords": "area; eth; gold; high; low; mineralization; nigeria; potential; profile; resistivity; study; zones", "summary": "J. Vol. 28, No. 2 (June, 2024): 151 - 160 G EO PH Y SI C S Record Manuscript received: 13/12/2023 Accepted for publication: 16/07/2024 Keywords: Gold mineralization Zones, Yauri/Zuru Schist Belt, Aero-radiometric, Electrical Resistivity Tomography (ERT) and Induce Polarization (IP). Results of these techniques identified alteration zones that could host gold mineralization zone.", "mime": "application/pdf"}, {"id": "esrj-112332", "words": "24047", "extension": ".pdf", "flesch": "49", "author": "P\u00e1ramo Fonseca, Mar\u00eda Eur\u00eddice; Benavides Cabra, Cristian David; Garavito Camacho, Renzo", "title": "A new species of Platypterygius (Ophthalmosauridae) from the lower Barremian of Colombia and assessment of the species composition of the genus", "date": "2024", "keywords": "anterior; basioccipital; colombia; cretaceous; dorsal; end; et al; facet; fcg; fig; fischer; fonseca; forelimb; genus; journal; kear; length; margin; maxilla; maxwell; p. australis; p. elsuntuoso; p. sachicarum; platypterygius; posterior; process; p\u00e1ramo; region; skull; species; species p.; specimen; teeth; ventral; view", "summary": "Pa- laeontology, 58(2), 379-389. https://doi.org/10.1111/pala.12142 Benavides-Cabra, C. D., P\u00e1ramo-Fonseca, M. E., Palma-Castro, H. D., Nar- v\u00e1ez-Rinc\u00f3n, J. A., & Ramos-Clavijo, M. P. (2023). Kolb, C., & Sander, P. M. (2009).", "mime": "application/pdf"}, {"id": "esrj-112335", "words": "8938", "extension": ".pdf", "flesch": "57", "author": "Andrade-Vel\u00e1zquez, Mercedes; Montero-Mart\u00ednez, Mart\u00edn Jos\u00e9; Vargas Maga\u00f1a, Mar\u00eda Fernanda", "title": "Climatic temperature indices for the coastal resilience observatory in Tabasco (Dos Bocas)\u2012LANRESC", "date": "2024", "keywords": "blank; change; climate; climate change; correlation; days; degrees_c; indices; mart\u00ednez; mexico; montero; series; tabasco; temperature; time; trend", "summary": "This study focused on calculating climate change indices derived from maximum and minimum temperature variables for the Coastal Resilience Observatory in Tabasco, Dos Bocas, located in Para\u00edso, Tabasco, Mexico. = \u03b2 +1 2 , \u03b2 2 + \u03b2 +2 2( ) 2 , (6) Sen\u2019s slope method was employed to evaluate the extent of change in climate change indices.", "mime": "application/pdf"}, {"id": "esrj-112376", "words": "6645", "extension": ".pdf", "flesch": "46", "author": "Sadeghtabaghi, Zahra; Mehdipour, Vali", "title": "Spatial Porosity Modeling in the Mixed Siliciclastic-Carbonate Kazhdumi Reservoir in an Iranian oilfield located in Abadan Plain", "date": "2024", "keywords": "abadan; analysis; carbonate; data; distribution; electrofacies; facies; formation; iran; kazhdumi; modeling; porosity; reservoir; sequence; siliciclastic; stratigraphy; zonation", "summary": "Despite numerous studies on porosity distribution, a suitable model for the studied area has yet to be established. In addition, GRFS algorithm was applied for porosity distribution.", "mime": "application/pdf"}, {"id": "esrj-112425", "words": "5464", "extension": ".pdf", "flesch": "57", "author": "Liu, Mingchen; Meng, Fanchang; Sun, Zhangqing; Lu, Jipu; Wang, Ruihu; Cen, Wenpan", "title": "Estimation of seismic local slope using Hilbert transform noise correction method", "date": "2024", "keywords": "data; equation; field; figure; filter; hilbert; local; method; noise; plane; slope; slope field; transform; wave", "summary": "Estimation of seismic local slope using Hilbert transform noise correction method. The ray parameter is estimated by using the equation (2), 0x tH pH+ \u2248\uf025 \uf025 , and equation (2) is converted into a quadratic function as follows: 41Estimation of seismic local slope using Hilbert transform noise correction method (5) The quadratic function is minimized with respect to p, and let \u2202Q| \u2202p=0, and (6) A more stable ray parameter value can be estimated by using equation (6).", "mime": "application/pdf"}, {"id": "esrj-112634", "words": "7821", "extension": ".pdf", "flesch": "47", "author": "Hernandez Pardo, Orlando; Atapuma, Paola; Ochoa Guti\u00e9rrez, Luis Hern\u00e1n", "title": "Geophysical modeling of the middle Bogot\u00e1 River Basin with support from interpretation of electrical resistivity, gravity, seismic and borehole data to evaluate potential deep aquifers", "date": "2024", "keywords": "area; basin; bogot\u00e1; data; del; figure; formations; gravity; group; guadalupe; ohm; potential; resistivity; river; sabana; sandstones; units", "summary": "Memoria explicativa de la Geolog\u00eda de la plancha 227 La Mesa. Location map of the study area, including the municipalities of Cota, El Rosal, Funza, Madrid, Mosquera, Subachoque, Tenjo, in the Middle Rio Bogota basin, Sabana de Bogot\u00e1, Cordillera Oriental, Colombia.", "mime": "application/pdf"}, {"id": "esrj-112740", "words": "13834", "extension": ".pdf", "flesch": "52", "author": "Paudyal, Kabi Raj; Maharjan, Rupendra; Shrestha, Birat; Maharjan, Neelam", "title": "A Comparative of Frequency Ratio Method, Weight of Evidence, and Analytical Hierarchy Process for Landslide Susceptibility Assessment in the Main Boundary Thrust (MBT) Region in Ranitar-Belarang Section of Udayapur District, Koshi Province, Nepal", "date": "2024", "keywords": "ahp; area; distance; evidence; figure; frequency; frequency ratio; hierarchy; index; landslide susceptibility; landslides; map; mbt; method; model; nepal; process; ratio; slope; study; study area; susceptibility mapping; thrust; total; weight; woe", "summary": "The concentration of landslides was found to be maximum in the elevation range of 500 m-750 m. The steepness of the slope is another significant topographic factor considered in landslide susceptibility studies (Kamp et al., 2008; Based on the calculations, weighted maps of each factor were produced, and each map were added and overlaid using the equation (8) to obtain landslide susceptibility maps.", "mime": "application/pdf"}, {"id": "esrj-112804", "words": "5472", "extension": ".pdf", "flesch": "51", "author": "Sun, Chentao; Hou, Kepeng; Wang, Shining; Qian, Shanguang", "title": "Analytic Hierarchy Process-Fuzzy Comprehensive Evaluation Method-based Depletion Assessment Study of Xinshan Iron Ore Mine", "date": "2024", "keywords": "affiliation; body; chinese; depletion; evaluation; grade; iron; method; ore; parameters; release; segmental; table; volume", "summary": "Front and side view of mine release model 2.2 Weighting 2.2.1 Modelling the hierarchy The principles and steps of hierarchical analysis method and fuzzy comprehensive evaluation method were referred to the literature ( [26], and firstly, the hierarchical structure model of ore depletion evaluation by bottomless column segmental disintegration method was established. Study on the chi- pping step distance under different ore release methods of bottomless column segmental chipping method (in Chinese).", "mime": "application/pdf"}, {"id": "esrj-112936", "words": "5182", "extension": ".pdf", "flesch": "57", "author": "Li, Zhijun; Sun, Hui; Xu, Ruoge; Chen, Rui; Ren, Hongyong; Wang, Chenglang; Gao, Fuliu; Wang, Mingnian", "title": "Diffraction Separation for the Ground Penetrating Radar Data by Masking Filters", "date": "2024", "keywords": "data; figure; filter; filtering; median; method; model; radon; separation; transform; wave; \ufffd \ufffd", "summary": "k k N\ufffd \ufffd \ufffd \ufffd( )/ ( )/ , , , ..., 1 2 1 2 \uf04b i j k k k \ufffd \ufffd, ,\ufffd \ufffd \ufffd \ufffd\ufffd \ufffd \ufffd \ufffd1 nx (13)", "mime": "application/pdf"}, {"id": "esrj-113137", "words": "6829", "extension": ".pdf", "flesch": "53", "author": "Shang, Tielin; Wang, Rui; Wang, Jindong; Zhang, Pei", "title": "Study on the structure and strata behavior regularity of repeated mining overburden of close-distance shallow buried coal seam group", "date": "2024", "keywords": "coal; coal mining; coal seam; coal working; interface; mining; regularity; rock; strata; stress; working; working interface", "summary": "In the initial stage of coal seam mining under the SBCS group, due to the formation of a \u201clarge structure\u201d of the strata failure of the upper first coal seam, the stress of the roof overburden in the goaf is not fully transmitted to the interlayer rock layer, and the interlayer rock layer has a specific thickness and strength, and the initial stress limit collapse step L is larger, and the initial mining stress step is larger than that of the upper one, and the mine stress is not violent. Structural regularity of the fourth cycle of coal mining to strata failure 3.", "mime": "application/pdf"}, {"id": "esrj-113381", "words": "11220", "extension": ".pdf", "flesch": "54", "author": "Gonz\u00e1lez-Dur\u00e1n, Andr\u00e9s Felipe; Molano-Mendoza, Juan Carlos; Sep\u00falveda-Ospina, Mar\u00eda Janeth; Cano, N\u00e9stor Alfredo; Guerrero-Higuero, Nathalia Marcela; Ch\u00e1vez, William; Contreras Palencia, Luis Alejandro", "title": "Mineralogy and geochemistry of stratabound copper - silver deposits hosted by the La Quinta Formation, northern Colombia", "date": "2025", "keywords": "alteration; basalt; bornite; colombia; copper; covellite; deposits; epidote; et al; fig; formation; geology; hydrothermal; mineralization; minerals; native; ore; perij\u00e1; quartz; quinta; sediment; stratabound; sulfides; \u00b1ag", "summary": "Adem\u00e1s, la oxidaci\u00f3n sup\u00e9rgena de minerales de mena hipog\u00e9nicos result\u00f3 en la formaci\u00f3n de spionkopita, anilita y covelita, adem\u00e1s de otros minerales secundarios de Cu. Acerca de la geolog\u00eda de la Serran\u00eda de Perij\u00e1 entre Codazzi y Villanueva.", "mime": "application/pdf"}, {"id": "esrj-113518", "words": "8951", "extension": ".pdf", "flesch": "52", "author": "Mehmood, Maryam; Hussain, Farhan; Shahzad, Ahsan; Ali, Nouman", "title": "Classification of Remote Sensing Datasets with Different Deep Learning Architectures", "date": "2025", "keywords": "accuracy; aid; aider; classification; cnn; data; dataset; image; layers; learning; model; net; network; parameters; resnet50; resolution; sensing; table", "summary": "https://doi. org/10.15446/esrj.v28n4.113518 Record Manuscript received: 16/03/2024 Accepted for publication: 22/10/2024 ABSTRACT Remote sensing image classification has great advantages in the areas of environmental monitoring, urban planning, disaster management and many others. According to the literature, from 2014 there has been a drastic evolution in remote sensing image classification (Kuang & He, 2014), the renowned CNN architectures include; Residual Network (Res Net), VGG network, Google Net and, Alex Net (Song, Gao, Zhu, & Ma, 2019).", "mime": "application/pdf"}, {"id": "esrj-113685", "words": "6320", "extension": ".pdf", "flesch": "50", "author": "Xu, Xinxian; Fu, Qiji", "title": "SHRIMP Zircon U-Pb Dating on the Early Cretaceous Volcanics in Zhangwu-Heishan Area, West Liaoning Province, China and its Geological Significance", "date": "2024", "keywords": "age; andesite; area; basalt; county; formation; fuxin; heishan; liaoning; rock; set; volcanic; yixian; zhangwu", "summary": "The horizon and age of volcanic rock play an important role in understanding biostratigraphy, structural and sedimentary evolution of west Liaoning Province and local coal exploration. The stratigraphic succession of Zhangwu-Heishan Area was clarified and the conclusion that no Cretaceous coal seam can be found below volcanic rock in Zhangwu-Heishan Area was drawn.", "mime": "application/pdf"}, {"id": "esrj-113693", "words": "7080", "extension": ".pdf", "flesch": "53", "author": "Pan Barcel, Javier; Canul Turriza, Rom\u00e1n Alejandro ; Fern\u00e1ndez-D\u00edaz, Violeta Z.; Cruz y Cruz, Andrea del R.; Arregu\u00edn-Rodr\u00edguez, Gabriela J.", "title": "Coastal flood and damage assessment under sea level rise projections: a case study in San Francisco de Campeche, Mexico", "date": "2024", "keywords": "area; campeche; change; city; damage; de campeche; del; et al; figure; flood; flooding; francisco; francisco de; level; rise; san; scenario; sea; sea level", "summary": "From the Special Report on the Ocean and the Cryosphere in a Changing Climate (IPCC, 2019) it was established that if the current rate of greenhouse gas emissions is not reversed, the collapse of the ice masses will be inevitable and the increase in the level of the sea will affect more than 680 million people who live in coastal areas of the world. The Sixth Assessment Report on Climate Change of IPCC (AR6) assumes that sea level rise scenarios worsen the threat of flooding in coastal areas around the world.", "mime": "application/pdf"}, {"id": "esrj-113767", "words": "10833", "extension": ".pdf", "flesch": "49", "author": "Oliveira, Vinicius; Dutra, Alanna Costa; das Flores, Onofre H. D. J.", "title": "Geophysical characterization and tectonic insights of the Western Meridional Borborema Province in the Northeastern Region of Brazil", "date": "2024", "keywords": "basin; belt; borborema; borborema province; brazil; crust; crustal; data; depths; domains; et al; figure; kilometers; model; moho; pontal; province; region; riacho; sfc; s\u00e3o", "summary": "Geological context The Borborema Province exhibits a subdivision into three distinct tectonic subprovinces, namely the Northern, Transversal (central), and Southern subprovinces. The Southern Subprovince encompasses the Meridional Borborema Province (MBP), representing a significant tectonic segment within the Borborema Province.", "mime": "application/pdf"}, {"id": "esrj-113775", "words": "5082", "extension": ".pdf", "flesch": "59", "author": "Sundarrajan, Vijay Anand; Ramaya, Nisha Devi", "title": "Evidence of fluid boiling for the Li-Rb-F-W rich vein rocks of Degana, Rajasthan, NW India", "date": "2025", "keywords": "core; degana; et al; fluid; inclusions; india; melting; rajasthan; rewat; rock; temperature; type; vein; wall", "summary": "Understanding the metallogenesis by SIMS (Secondary Ion Mass Spectrometry), ICP-MS (Inductively Coupled Plasma Mass Spectrometry), and SHRIMP (Sensitive High-Resolution Ion Microprobe) have been used significantly (Li et al., 2023; Xu et al., 2023). The fluid process may vary due to mineralization style, wallrock interaction, except for simple cooling process (lack of fluid-wallrock interaction) (Heinrich, 1990, Heinrich et al., 2004; Xie et al., 2019; Li et al., 2019; Zhang et al., 2021; Li et al., 2021).", "mime": "application/pdf"}, {"id": "esrj-113933", "words": "9835", "extension": ".pdf", "flesch": "61", "author": "S\u00e1nchez-Cortez, Jos\u00e9 Luis; V\u00e9lez-Mac\u00edas, Kathleen; Simba\u00f1a-Tasiguano , Marco; Rodr\u00edguez-Calvopi\u00f1a , Mariela; Fuentes-Campuzano, Oswaldo; Freire-Guerrero , Carolina", "title": "Morphological characterization of karst geodiversity in Municipality of Archidona (Ecuador), Napo Sumaco Aspiring UNESCO Global Geopark", "date": "2024", "keywords": "al e; archidona; e d; geodiversity; geopark; karst; morphologies; napo; sc al; sumaco; unesco", "summary": "J. Vol. 28, No. 3 (September, 2024): 305 - 323 G EO M O R PH O LO G Y Morphological characterization of karst geodiversity in Municipality of Archidona (Ecuador), Napo Sumaco Aspiring UNESCO Morphological characterization of karst geodiversity in Municipality of Archidona (Ecuador), Napo Sumaco Aspiring UNESCO", "mime": "application/pdf"}, {"id": "esrj-113984", "words": "9366", "extension": ".pdf", "flesch": "59", "author": "El Fartati, Mohamed; Hinaje, Sa\u00efd; Sabaoui, Abdellah; Yaagoub, Driss; Laiche, Mohammed; Baadi, Khaoula; Drissi, Youssef; Laksir, Anas; Amrani , Samir; Gharmane, Youssef", "title": "Tectono-sedimentary events and geodynamic evolution of the Northern Middle Atlas Miocene basins (Morocco): impact on the NW-SE Atlantic transgression", "date": "2025", "keywords": "aghram; amellal; atlas; basin; deposits; faults; figure; formation; hinaje; marine; marls; maroc; middle; middle atlas; miocene; oued; sefrou; skoura; tectonic; tortonian; upper", "summary": "Keywords: Miocene basins; Geodynamic evolution; Tectonic events; Middle Atlas; Morocco. It is only in 1927 that the marine Miocene was reported in the Middle Atlas in relation to gulfs from the South Rifain-Sa\u00efs Strait (Figure 2).", "mime": "application/pdf"}, {"id": "esrj-114091", "words": "8599", "extension": ".pdf", "flesch": "41", "author": "Soyaslan, I. Iskender", "title": "Assessment of groundwater vulnerability using SINTACS and modified-SINTACS methods in Burdur \u00c7ine Basin (Turkiye)", "date": "2025", "keywords": "approach; aquifer; area; assessment; basin; data; gis; groundwater; groundwater vulnerability; index; land; method; model; parameters; pollution; regions; research; sensitivity; sintacs; sintacs vulnerability; use; vulnerability", "summary": "A comparative study of groundwater vulnerability methods in a porous aquifer in Greece. Slimani et al. (2023) employed three distinct GIS-supported methodologies (GOD, DRASTIC, and SINTACS) in their investigation of groundwater pollution vulnerability in the Ouargla region of Algeria.", "mime": "application/pdf"}, {"id": "esrj-114296", "words": "9146", "extension": ".pdf", "flesch": "40", "author": "Kargi, Bilal; Coccia, Mario", "title": "Air Pollution as a Potential Risk Factor for COVID-19 Spread: A Case Study of Italian Provincial Capitals", "date": "2025", "keywords": "air pollution; april; cities; coccia; correlation; covid-19; days; density; err; health; infections; levels; log; pollution; population; regions; research; spread; transmission", "summary": "Notably, these cities often coincided with hinterland zones characterized by high air pollution (exceeding PM10 and ozone limits for many days), low wind speed, and lower temperatures, potentially amplifying the observed association. Furthermore, analyses stratified by air pollution levels (Table 7) demonstrate that population density is a factor in explaining the number of infected individuals, but its impact appears to be more pronounced in cities with high air pollution.", "mime": "application/pdf"}, {"id": "esrj-114415", "words": "7161", "extension": ".pdf", "flesch": "34", "author": "Carrillo-Acosta, Natalia; Santos-Rocha, Ana C.; Arenas Bautista, Maria Cristina; Otalora Low, Martin", "title": "Unveiling the Nexus of Scientific Production, Water Resource Management, and Global Water Challenges", "date": "2025", "keywords": "analysis; articles; challenges; data; et al; global; groundwater; management; production; research; resource; science; scopus; sustainability; water; water management; water resource", "summary": "Branch 3: Water Resource Quality This branch explores innovative technologies and approaches for sustainable water resource management, focusing on water quality, agricultural productivity, and environmental impact (Figure 6.C). Over this period, the production of documents related to agro-ecological systems and water resource management, particularly through coupled models, has shown a steady increase, peaking in 19 with a maximum of 485 articles published.", "mime": "application/pdf"}, {"id": "esrj-114856", "words": "11071", "extension": ".pdf", "flesch": "60", "author": "Duong Van, Thanh; Pham Nam, Hung; Cao Dinh, Trieu; Cao Dinh, Trong; Thai Anh, Tuan; Mai Xuan, Bach; Nguyen Manh, Luc", "title": "Study of the structural characteristics of the Earth\u2019s crust in Cao Bang province and adjacent areas using gravity data", "date": "2025", "keywords": "anomaly; areas; bang; basement; cao; cao bang; crust; crystalline; data; depth; earth; fault; figure; gravity; model; moho; province; results; study; surface; surface depth", "summary": "Locations with shallow Moho surface depth values range from 28.77 km to 30 km, appearing in the northern region of Cao Bang province, the southern region of Bac Kan province, and the southeastern region of Lang Son province. Moho depth of the northern Vietnam and Gulf of Tonkin from 3D inverse interpretation of gravity anomaly data.", "mime": "application/pdf"}, {"id": "esrj-115013", "words": "4811", "extension": ".pdf", "flesch": "47", "author": "Wen, Quan; Sha, Zixuan; Wang, Guozhi", "title": "Rolling appraisal and high-efficiency development on a lithologic reservoir of nearshore subaqueous fan in the Tanan oilfield", "date": "2024", "keywords": "body; characteristics; development; fan; formation; lithologic; nearshore; oil; oilfield; production; reservoir; rolling; sag; subfacies; tanan", "summary": "Identification means of the fan According to the analysis of fan development conditions, paleogeomorphic restoration combined with seismic sedimentology is used to identify the sedimentary fan effectively. Starting from the geological conditions, this paper discusses the charac- teristics of nearshore underwater fan lithologic reservoirs with near source advantages, which provides a rich material basis for rolling evaluation and searching for sweet spo reservoirs.", "mime": "application/pdf"}, {"id": "esrj-115333", "words": "9578", "extension": ".pdf", "flesch": "43", "author": "Gomez Gutierrez, Jesus David; Romanelli, Asuncion; Bertolini, Leandro; Quiroz Londo\u00f1o , Orlando Mauricio", "title": "Application of isotopic and hydrogeochemical techniques to evaluate mixing processes in groundwater systems from a coastal area in Argentina", "date": "2025", "keywords": "analysis; aquifer; area; argentina; del; dune; dune aquifer; et al; figure; groundwater; mixing; pampeano; pampeano aquifer; processes; quality; quiroz; samples; sand; study; values; water; wells", "summary": "Water samples were plotted in a conventional \u03b418O vs \u03b42H plot, together with the Global Meteoric Water Line (GMWL; Dansgaard 1964) and Local Meteoric Water Line (LMWL; Quiroz Londo\u00f1o et al., 2015). This document focuses on understanding the mixing processes of aquifers with different hydrochemical and isotopic signatures, the consequences of which could influence the variation in water quality of both hydrological systems.", "mime": "application/pdf"}, {"id": "esrj-115986", "words": "8490", "extension": ".pdf", "flesch": "51", "author": "Lu, Zeng-Qi; Zhang, Liang; Chen, Zu-yan; Jiang, Biao", "title": "Mineralogical Characteristics and Colouring Mechanism of Hydrothermal Fluorite in the Sumochagan Obo Deposit, Inner Mongolia, north China", "date": "2025", "keywords": "absorption; abstract; centers; characteristics; chinese; deposit; earth; english; figure; fluorite; fluorite deposit; fluorite samples; green; hydrothermal; obo; sumochagan", "summary": "Nature and genesis of the Xiaobei- https://doi.org/10.1016/j.ultramic.2015.02.007 https://doi.org/10.1016/j.ultramic.2015.02.007 https://doi.org/10.1007/s12517-018-4055-8 https://doi.org/10.1007/s12517-018-4055-8 https://doi.org/10.5802/crgeos.2 https://doi.org/10.19614/j.cnki.jsks.201904024 https://doi.org/10.19614/j.cnki.jsks.201904024 https://doi.org/10.7185/geochempersp.4.1 https://doi.org/10.1007/BF00307282 https://doi.org/10.1007/BF00307282 https://doi.org/10.1007/BF00308116 https://doi.org/10.1016/s0031-8914(58)80079-8 https://www.researchgate.net/publication/234505003 https://doi.org/10.18654/1000-0569/2023.02.15 https://doi.org/10.18654/1000-0569/2023.02.15 https://www.researchgate.net/publication/265594809 https://www.researchgate.net/publication/265594809 https://doi.org/10.1127/0077-7757/2010/0169 https://doi.org/10.1127/0077-7757/2010/0169 https://doi.org/10.1029/90JC01868 https://doi.org/10.1029/90JC01868 https://doi.org/10.11785/S1000-4343.20200516 https://doi.org/10.11785/S1000-4343.20200516 https://doi.org/10.16533/j.cnki.15-1099/tf.20200032 https://doi.org/10.1007/s00269-020-01116-4 https://doi.org/10.1007/S00126-020-01035-Y https://doi.org/10.1063/1.1732094 https://doi.org/10.16461/j.cnki.1000-4734.2015.01.014 https://doi.org/10.16461/j.cnki.1000-4734.2015.01.014 https://doi.org/10.3969/j.issn.1001-5663.2018.04.006 https://doi.org/10.3969/j.issn.1001-5663.2018.04.006 https://doi.org/10.16461/j.cnki.1000-4734.2018.38.244 https://doi.org/10.16461/j.cnki.1000-4734.2018.38.244 https://doi.org/10.16461/j.cnki.1000-4734.1985.02.011 https://doi.org/10.16461/j.cnki.1000-4734.1985.02.011 https://doi.org/10.3969/j.issn.1001-3970.2021.01.002 https://doi.org/10.3969/j.issn.1001-3970.2021.01.002 https://doi.org/10.1016/j.oregeorev.2019.103233 https://doi.org/10.3969/j.issn.1000-6524.2022.05.004 https://doi.org/10.16461/j.cnki.1000-4734.1983.04.011 https://doi.org/10.16461/j.cnki.1000-4734.1983.04.011 https://doi.org/10.3969/i.issn.1006-0995.2020.01.010 https://doi.org/10.3969/i.issn.1006-0995.2020.01.010 https://doi.org/10.1007/BF00203098 https://www.researchgate.net/publication/279907357 https://www.researchgate.net/publication/279907357 https://doi.org/10.1016/j.oregeorev.2016.12.022 https://doi.org/10.1016/j.oregeorev.2016.12.022 148 Zeng-Qi Lu, Liang Zhang, Zu-Yan Chen, Biao Jiang gou fluorite deposit, Inner Mongolia, Northeast China: Evidence from fluid inclusions and stable isotopes. Spectral characteristics, rare earth elements, and ore-forming fluid constrains on the origin of fluorite deposit in Nan- lishu, Jilin Province, China.", "mime": "application/pdf"}, {"id": "esrj-116089", "words": "13276", "extension": ".pdf", "flesch": "51", "author": "Ahmedani, Surriya Bibi; Hakro, Asghar A. A. D.; Mastoi, Abdul Shakoor; Ali Halepoto , Aijaz ; Sahito, Ali Ghulam; Akhtar, Shamim; Lashari, Rafique Ahmed", "title": "Clastic Source and Depositional Environment of Mixed Carbonate-Clastic Sequences in the Oligocene Nari Formation from the Hundi Anticline, Karachi Embayment, Indus Basin, Pakistan", "date": "2025", "keywords": "a. a.; a. d.; basin; calcite; carbonate; clastic; conditions; environment; et al; facies; figure; formation; geology; hakro; indus; journal; limestone; microfacies; nari; nari formation; oligocene; pakistan; petrofacies; quartz; sandstone; traces", "summary": "Williams (1959) used the term \u201cNari Formation\u201d for the \u201cNari Series\u201d. Nari Formation has been studied in terms of echinoids fossil assemblages (Duncan & Sladen, 1884; Hunting Survey Carporation, 1960; Khan, 1968), reservoir potential (Mahmud & Sheikh, 2009), grain size analysis and depositional environment (Khokhar et al., 2016;", "mime": "application/pdf"}, {"id": "esrj-116114", "words": "7145", "extension": ".pdf", "flesch": "43", "author": "Mehmood, Qaiser; Can, Tolga", "title": "Susceptibility Assessment of Deep-seated Landslides in Sub-Himalayan Galiat Region, Pakistan", "date": "2025", "keywords": "area; assessment; data; distribution; earth; entropy; et al; figure; landslide; landslide susceptibility; map; maxent; maximum; model; pakistan; region; study; susceptibility; variables", "summary": "Despite the high threat, there is an absence of landslide susceptibility maps for most of northern Pakistan, hindering effective measures for landslide hazard preven- tion. Keywords: Landslide inventory; deep-seated landslide; landslide susceptibility map; maximum entropy model.", "mime": "application/pdf"}, {"id": "esrj-116550", "words": "8637", "extension": ".pdf", "flesch": "60", "author": "Nawaz, Abid; Sajid, Muhammad; Ahmed, Waqas; Asif, Abdul Rahim", "title": "Freeze\u2013thaw\u2013induced microstructural alterations and deterioration of physicomechanical properties in rocks from the Himalayan ranges (Pakistan)", "date": "2025", "keywords": "amphibolite; cycles; deterioration; fig; fracture; freeze; granulite; las; limestone; pakistan; porosity; properties; quartz; rock; samples; sandstone; strength; thaw; thaw cycles; water", "summary": "The fracture density of rock samples following different freeze-thaw cycles Figure 8. Using a similar approach, the decrease in ratios of UPV at the end of the 50 and 100 cycles was calculated by using the following equation (Khanlari et al., 2015): RVP = 1-Vp(nc)/Vp(us) Where Vp(nc) is the P wave velocity of rock samples at the end of 100 freeze-thaw cycles and Vp(us) is the P wave velocity of untreated rocks.", "mime": "application/pdf"}, {"id": "esrj-116670", "words": "6645", "extension": ".pdf", "flesch": "46", "author": "Ahmad, Mirza Naseer; Syed, Naeem Ahmad; Parvaiz, Rehan Ahmad; Ahmed, Talal; Raza, Ain ur; Shafique, Jazba; Toheed, Nida; Naseer, Humaira", "title": "Monitoring Land Surface Temperature and Vegetation Dynamics in Response to Land Use Changes using Spatiotemporal Analysis in District Chiniot, Punjab Pakistan", "date": "2025", "keywords": "areas; chiniot; cover; data; et al; land; land surface; lst; march; ndvi; study; surface; surface temperature; temperature; use; vegetation; year", "summary": "This study aims to investigate the relationship between land surface temperature (LST) patterns and changes in LULC due to urbanization in District Chiniot. The term \u201curban heat island\u201d denotes widespread alterations in microclimates due to urbanization, with land surface temperature serving as an indicator of the severity of global warming (Yang et al., 2021).", "mime": "application/pdf"}, {"id": "esrj-117035", "words": "5066", "extension": ".pdf", "flesch": "59", "author": "Ben Ghawar, Bahia Muftah; Zairi, Moncef; Salloum , Fathi M.; Elgubi, Mohammed", "title": "Mechanical Properties as Predictors of Sand production: Case Study of the Mamuniyat Reservoir, Murzuq Basin-Libya", "date": "2025", "keywords": "basin; clean; formation; libya; logs; mamuniyat; murzuq; oil; production; properties; reservoir; rock; sand; wells", "summary": "Este art\u00edculo de investigaci\u00f3n busca establecer una metodolog\u00eda para detectar la producci\u00f3n de arena en el reservorio de Mamuniyat (Ordov\u00edcico Tard\u00edo) a lo largo de m\u00faltiples campos de petr\u00f3leo en la cuenca de Murzuq, al noroeste de Libia. Palabras clave: Indicador de producci\u00f3n de arena; reservorio de Mamuniyat; propiedades mec\u00e1nicas; petrof\u00edsica; cuenca de Murzuq; Libia Propiedades mec\u00e1nicas como predictores de la producci\u00f3n de arena: caso de estudio del reservorio de Mamuniyat, en la cuenca de Murzuq, Libia La producci\u00f3n de arena es uno de los factores inestables de las reservas de petr\u00f3leo.", "mime": "application/pdf"}, {"id": "esrj-117121", "words": "7086", "extension": ".pdf", "flesch": "53", "author": "Raked, Hind; Bachari, Nour El Islam; Guettouche, Mohamed Sa\u00eed; Touahri, Mohammed Tayeb", "title": "GIS Approach for Flood Risk Assessment in the Large Irrigation Area of the Western Mitidja Plain (Algeria)", "date": "2025", "keywords": "algeria; area; assessment; drainage; figure; flood; flood risk; flooding; high; irrigation; low; map; mitidja; permeability; plain; risk; study; water; weights; western", "summary": "The result is a map showing the spatial distribution of flood risk areas in the large irriga- tion Area of the Western Mitidja, classified into four classes (low, medium, high, very high) risk. As a result, the objective of this research is to develop a geospatial model to identify and classify flood risk areas within the Mitidja West LIA using a Geographic Information System (GIS).", "mime": "application/pdf"}, {"id": "esrj-117124", "words": "12749", "extension": ".pdf", "flesch": "44", "author": "Abbas Ali, Rana", "title": "Geochemical data from Tanuma carbonate reservoir (Central Iraq) indicates higher terrigenous input and deoxygenation during Coniacian- Early Santonian age", "date": "2025", "keywords": "basin; carbonate; cie; coniacian; continental; cretaceous; data; deoxygenation; earth; elements; et al; events; facies; fig; global; iraq; level; marine; oae; oae3; platform; redox; rise; santonian; sea; shallow; southern; tanuma; water; weathering", "summary": "CaCO3 and Sr data for the calcareous sequence of the Abu Roash Formation in the Abu Gharadig Basin (Egypt) are from Mansour et al. (2020b), while CaCO3, \u03b4 13C carb, I/Ca, Ce/Ca, Ce anomaly, and Mn/Ca data for the Late Cretaceous carbonate of the Eastbourne are from Lu et al. (2010). These markers have been seen for the T-OAE, or oceanic anoxic events (Lu et al., 2010; Jenkyns, 2010; Tessin et al., 2015).", "mime": "application/pdf"}, {"id": "esrj-117157", "words": "14533", "extension": ".pdf", "flesch": "46", "author": "P\u00e1ramo Fonseca, Mar\u00eda Eur\u00eddice; Narv\u00e1ez Rinc\u00f3n, Jos\u00e9 Alejandro; Benavides-Cabra, Cristian David", "title": "Oneirosaurus caballeroi gen. et sp. nov., a new mosasaur from Colombia", "date": "2025", "keywords": "anterior; caballeroi; caldwell; colombia; columbianus; dorsal; end; et al; fig; fonseca; frontal; igmp879524; medial; mosasaur; nov; oneirosaurus; parietal; plioplatecarpinae; polcyn; posterior; process; p\u00e1ramo; quadrate; right; specimen; surface; teeth; view; yaguarasaurus", "summary": "In this contribution, we provide a detailed morpho-anatomical description of the specimen, we identified it as a new genus and species of Plioplatecarpinae (sensu Polcyn et al., 2023), and included it to a phylogenetic context of mosasauroids. 4. Systematic Paleontology REPTILIA Linnaeus, 1758 SQUAMATA Oppel, 1811 MOSASAURIDAE Gervais, 1853 PLIOPLATECARPINAE Dollo, 1884 (sensu Polcyn et al., 2023) Oneirosaurus gen. nov. urn:lsid:zoobank.org:act:FFEC38C0-51F7-499E-A1DE- 0CFC2962F7A0 Type and only species: Oneirosaurus caballeroi, sp.", "mime": "application/pdf"}, {"id": "esrj-117195", "words": "11549", "extension": ".pdf", "flesch": "55", "author": "Pansong, Chollada; Kenpankho, Prasert", "title": "Study on the relationship between Global Positioning System Total Electron Content Anomalies and Earthquake Events in Thailand during Solar Cycle 24", "date": "2025", "keywords": "anomalies; data; days; earthquake; earthquake events; earthquake magnitudes; et al; events; geomagnetic; gps; gps tec; igs tec; ionospheric; iri; iri tec; magnitudes; solar; tec; tec data; thailand", "summary": "To analyze the correlation between geomagnetic storms (represented by the Kp index) and TEC variations on earthquake days, we examined GPS TEC, IGS TEC, and IRI TEC. Correlation coefficient Earthquake magnitudes Kp index TEC (On earthquake day) GPS TEC IGS TEC IRI TEC 3.0-3.9 -0.017 -0.067", "mime": "application/pdf"}, {"id": "esrj-117229", "words": "7768", "extension": ".pdf", "flesch": "55", "author": "Sedighian, Soudeh", "title": "Introducing Quaternary magmatism of Gohar Kouh area with a focus on the lithological, geochemical and petrogenetic characteristics of the rocks (southeast of Iran)", "date": "2025", "keywords": "arc; area; basalts; diagram; earth; et al; fig; gohar; iran; kouh; magma; mantle; rocks; samples; subduction; zone", "summary": "Geochemistry In Table 1 and 2, the results of chemical analysis of rock samples from the Gohar Kouh volcanic masses are presented. Geochemical results of rock samples from the study area for major elements by XRF method.", "mime": "application/pdf"}, {"id": "esrj-117639", "words": "5334", "extension": ".pdf", "flesch": "45", "author": "Song, Huadong; Fu, Hui; Qin, Jifeng", "title": "Three-Dimensional Gravity Interface Inversion Based on Artificial Neural Network and Discrete Cosine Transform Algorithm", "date": "2025", "keywords": "algorithm; artificial; cosine; data; density; depth; gravity; interface; inversion; method; model; network; training; transform", "summary": "Parker\u2019s formula based on fast Fourier transform method plays an important role in gravity interface inversion. However, estimating the geometric shape of a specific geological structure\u2019s interface using gravity data is an ill-posed and non-unique problem.", "mime": "application/pdf"}, {"id": "esrj-117846", "words": "11943", "extension": ".pdf", "flesch": "63", "author": "Fu, Qiji; Xu, Xinxian", "title": "The sedimentary environment and source of ore-forming materials of sandstone-type copper deposits in southeast Kuqa Basin, Xinjiang, China", "date": "2025", "keywords": "area; basin; chinese; copper; facies; fan; formation; kangcun; kuqa; sandstone", "summary": "RESUMEN 24 Qiji Fu, Xinxian Xu Introduction The Tarim Basin is a metallogenic and exploration area for the coexistence of important metal minerals, coal, and oil resources in China (Lin C S et al., 2002, Cao Y T, 2010, Zhao M J et al., 2015, Fang W X et al., 2016, Xiao Y, 2018, Lu K G et al., 2019, Zhang T et al., 2020), which became a hot spot in the study of tectonic evolution and metallogenic laws in recent years (Liu Z H et al., 2000, Yan F L et al., 2003, Tang L J et al., 2004, Charreau J et al., 2006, Cao Y T, 2010, Guan S W et al., 2010, Li X et al., 2013, Cai H A et al., 2022, Cai H A, 2023). Scholars have conducted detailed studies on the structure (Qian J F et al., 2012, Lu K G et al., 2019), sequence (Guo X P et al., 2002, Lin C S et al., 2002, Shao L Y et al., 2007), sedimentary environment (Li J F et al., 2017) and paleogeography (Shao L Y et al., 2006, Tan X C et al., 2006).", "mime": "application/pdf"}, {"id": "esrj-117884", "words": "8861", "extension": ".pdf", "flesch": "57", "author": "Ahmad, Mukhtar S.; Khan, Saad; Islam, Nazir Ul; Khan, Fazle Yar; Ahmad, Imran", "title": "Landslide Distribution and Susceptibility Assessment in NW Pakistan: Insights from Field Observations and Factor Analysis", "date": "2025", "keywords": "ahmad; ahp; analysis; area; chitral; et al; factors; field; landslide; landslide susceptibility; map; mapping; methods; pakistan; rainfall; region; slope; study; susceptibility", "summary": "Landslide susceptibility map using the AHP method. Is the ROC curve a reliable tool to compare the validity of landslide susceptibility maps?.\u00a0", "mime": "application/pdf"}, {"id": "esrj-117910", "words": "5165", "extension": ".pdf", "flesch": "53", "author": "Zhazhlayi, Paiwast; Surdashy, Ali", "title": "Geomorphology and Landforms Evolution of Roste Valley, Western Zagros Fold-Thrust Belt, Iraqi Kurdistan Region", "date": "2025", "keywords": "anticline; area; figure; landforms; processes; ridge; rock; roste; study; tanoun; tectonic; valley; zagros; zone", "summary": "Surficial processes and climatic conditions of the study area aid erosion and transportation processes, resulting in the formation of different denudation landforms Fluvial landforms resulted from river action; the Roste River, from the end of the Miocene period, changed in its path, velocity, and intensity, hence shaping different landforms. Shows structural origins landforms, A)", "mime": "application/pdf"}, {"id": "esrj-118095", "words": "4074", "extension": ".pdf", "flesch": "55", "author": "Paula, Thainara; Candeiro, Carlos Roberto dos Anjos; Dias, Tamires do Carmo; Vidal, Luciano; Pereira, Paulo Victor Luiz Gomes da Costa", "title": "First record of Crocodyliformes Osteoderm from the Upper Cretaceous Bauru Group, State of Goi\u00e1s , Brazil.", "date": "2025", "keywords": "bauru; brazil; candeiro; cretaceous; et al; goi\u00e1s; group; osteoderm; state", "summary": "La presencia de Paleo-UFG-114 en el estado de Goi\u00e1s reafirma que los mesoeucrocodilianos fueron componentes importantes de la fauna de reptiles y contribuye a aumentar el conocimiento sobre la distribuci\u00f3n geogr\u00e1fica del grupo en esta regi\u00f3n poco explorada del centro de Brasil. In the present work, we describe the first osteoderm of Mesoeucrocodylia from the Campanian-Maastrichtian of the Mar\u00edlia For- mation (Bauru Group) of the state of Goi\u00e1s.", "mime": "application/pdf"}, {"id": "esrj-118098", "words": "8262", "extension": ".pdf", "flesch": "55", "author": "Wen, Beining; Yu, Miao; Liu, Chong; Jiao, Yan; Kai, Qihang", "title": "The influence of vertical coastal land movement on relative sea level rise: a case study of Shanghai, China", "date": "2025", "keywords": "area; change; china; climate; coastal; data; et al; flood; land; land subsidence; level; level rise; rise; rslr; sea; sea level; shanghai; study; subsidence; vlm", "summary": "Land subsidence has been identified as the main pattern of VLM (Dokka, 2006; G\u00f3mez et al., 2021). Because of the rapid sediment compaction and deposit, coastal delta regions are experiencing a faster rate of land subsidence than global SLR (Minderhoud, 2019; Tessler et al., 2018).", "mime": "application/pdf"}, {"id": "esrj-118266", "words": "7090", "extension": ".pdf", "flesch": "49", "author": "Boucif, Abdelkader; Reimann, Matthias; Bensalah, Mustapha; Hebib, Hakim; Kacemi, Ali", "title": "Chemical characterization and valorization potential of subsurface gypsum deposits in the Boufatis Plateau, Lower Chelif Basin (NW Algeria)", "date": "2025", "keywords": "algeria; alg\u00e9rie; analysis; basin; belkebir; bessedik; cao; chelif; chemical; deposits; des; djebel; djira; et al; gypsum; quality; rock; so\u2083", "summary": "3D models generated using Rockworks software indicate that the eastern and southeastern regions of Djebel Djira are characterized by a minimal overburden, not ex- ceeding 10 meters, whereas gypsum deposits are well developed at greater depths. In contrast, gypsum deposits rarely outcrop, significantly limiting data collection opportunities and, in the current state of knowledge, few works have dealt with this subject (Remmache, 2006;", "mime": "application/pdf"}, {"id": "esrj-118386", "words": "7222", "extension": ".pdf", "flesch": "46", "author": "Zhang, Shifang; Zhao, Shangmin", "title": "Transitional relationships among typical loess geomorphologic types: Loess Plateau of China", "date": "2025", "keywords": "data; digital; distribution; images; index; loess geomorphologic; loess knoll; loess plateau; loess ridge; loess tableland; research; sensing; types; valley; valley loess", "summary": "In this research, the fundamental data for typical loess geomorphologic type distribution is acquired from this database. J. Vol. 29, No. 1 (March, 2025): 45 - 53 G EO M O R PH O LO G Y Transitional relationships among typical loess geomorphologic types: Loess Plateau of China Shifang Zhang1, Shangmin Zhao2* 1 School of Traffic Engineering, Shanxi Vocational University of Engineering Science and Technology, Jinzhong 030619, China; 2 Department of Surveying and Mapping, College of Geological and Surveying Engineering, Taiyuan University of Technology, Taiyuan, 030024, China * Email: zhaoshangmin@tyut.edu.cn How to cite item: Zhang, S., & Zhao, S. (2025).", "mime": "application/pdf"}, {"id": "esrj-118407", "words": "6669", "extension": ".pdf", "flesch": "56", "author": "LUONG, Ngoc Dung; VU, Ngoc Quang; NGUYEN, Viet Ha; TRAN, Dinh Trong", "title": "Accuracy Assessment of the PPP Solution Using Standard GNSS Receivers", "date": "2025", "keywords": "10s; 15s; 30s; accuracy; gnss; method; point; ppp; rtk; solution; time", "summary": "This means RTK measurement points have their elevations calculated within the national vertical reference system, whereas PPP measurement points do not. To mitigate this, PPP observations can be referenced to a known benchmark within the local vertical system, allowing for height adjustment to align with RTK-derived values.", "mime": "application/pdf"}, {"id": "esrj-118866", "words": "9869", "extension": ".pdf", "flesch": "41", "author": "Kannazarova, Zulfiya; Khadjieva, Zukhra; Abdikairov, Bekmurat; Juliev, Mukhiddin; Sharipov, Zayniddin; Berdimuratov, Parakhat", "title": "Landslide Research in CIS countries: Remote Sensing, Hazards, and Research Trends", "date": "2025", "keywords": "analysis; articles; cis; cis countries; countries; earth; environmental; et al; hazards; journal; landslide; landslide research; natural; number; papers; period; publications; research; review; russian; sciences; sensing", "summary": "The purpose of this study is to analyze current topics and key regions in the CIS countries in landslide research as well as to use historical scientometric data to gain new insights into trends and emphasis of international landslide research. List of top countries on landslide 3.6 Top cited publications on landslide studies for CIS countries Table 3 demonstrates top 10 mostly cited articles on landslide research including publisher name, corresponding author, date of publication as well as number of citations and document type.", "mime": "application/pdf"}, {"id": "esrj-119268", "words": "9559", "extension": ".pdf", "flesch": "49", "author": "Tan, Yipei; Ma, Ting; Deng, Li; Xu, Ke", "title": "Seasonal variations characteristics of shallow subsurface seismic velocity and its influencing factors in Tianjin area, North China using ambient seismic noise data", "date": "2025", "keywords": "changes; curve; day; et al; figure; frequency; hvsr; peak; peak frequency; range; results; stations; temperature; variation; velocity; velocity changes; velocity variation; winter", "summary": "Consequently, methods that monitor seismic velocity variations using seismic ambient noise have gained widespread adoption. Steinmann et al. (2021) also observed multiple peaks in seismic velocity variation due to temperature fluctuations around 0\u00b0C.", "mime": "application/pdf"}, {"id": "esrj-119576", "words": "8152", "extension": ".pdf", "flesch": "48", "author": "Ray, Dipanjali; Roy, Tanusree Deb; Dutta, Subhankar; Laskar, Sebul Islam", "title": "Fitting of Statistical Distribution in Assessing Rainfall Patterns Across Various Zones of Assam, India", "date": "2025", "keywords": "assam; data; distribution; fitting; gamma; gumbel; log; monsoon; pearson; probability distribution; rainfall; rainfall data; season; station; table; value; weibull", "summary": "Millington et al. (2011) compared Gumbel, Generalized Extreme Value, and Log-Pearson III distributions for the Upper Thames River, Mandal and Choudhury (2015) identified optimal rainfall distributions for Sagar Island, and The purpose of this study is to assess the performance of probability distributions using various goodness-of-fit tests in order to develop a standard for selecting them in various zones of Assam based on monthly rainfall data from 1985-2022.", "mime": "application/pdf"}, {"id": "esrj-119786", "words": "13264", "extension": ".pdf", "flesch": "45", "author": "Cirmik, Ayca; Kirdok, \u0130brahim Berkan", "title": "Regional Displacement in Malatya and Adjacent Regions (Eastern Anatolia) Induced by the February 6, 2023 Kahramanmara\u015f Earthquakes (Mw 7.7, Mw 7.6)", "date": "2025", "keywords": "anatolian; component; coseismic; deformation; displacement; eafz; earthquakes; east; eastern; et al; fault; february; gnss; kahramanmara\u015f; kahramanmara\u015f earthquakes; malatya; motion; north; region; rupture; station; stress; tectonic; zone", "summary": "Regional Displacement in Malatya and Adjacent Regions (Eastern Anatolia) Induced by the February 6, 2023 Kahramanmara\u015f Earthquakes (Mw 7.7, Mw 7.6). Therefore, in this study, GNSS data of the permanent stations of the CORS-TR located around the epicenter of the February 6, 2023 Kahramanmara\u015f earthquakes were processed from January 1 to March 1, 2023, to calculate the displacement of the region with the effect of these earthquakes.", "mime": "application/pdf"}, {"id": "esrj-120899", "words": "10617", "extension": ".pdf", "flesch": "44", "author": "Ahmed, Waqas; Waseem, Muhammad; Raza, Hammad; Yasir, Muhammad; Zeeshan, Muhammad; ullah, Saif; Islam, Ihtisham; khattak, Salman Ahmed", "title": "Characterization of nonlinear dynamic soil properties for seismic site response in Islamabad, Pakistan", "date": "2025", "keywords": "confining; curves; damping; data; islamabad; kpa; models; modulus; plasticity; pressures; ratio; reduction; response; seismic; shear; silty; site; soil; stiffness; strain; values", "summary": "Furthermore, classic experimental curves by Ishihara et al. (1975), Taylor et al. (1975), and Kokusho et al. (2005) developed for higher-plasticity cohesive soils show notably higher damping (e.g., ~18\u201321% at 0.01\u20130.1% strain), emphasizing the divergence for low-PI materials. Normalized modulus reduction (G/ Gmax) curves showed gradual softening, with values decreasing to 0.3\u20130.5 at ~0.1\u20130.2% strain.", "mime": "application/pdf"}, {"id": "esrj-120997", "words": "69790", "extension": ".pdf", "flesch": "59", "author": "Vargas Jim\u00e9nez, Carlos Alberto", "title": "Evaluating total Yet-to-Find hydrocarbon volume in Colombia", "date": "2012", "keywords": "april; areas; b ia; basin; basin area; basin distribution; basins earth; cagu\u00e1n; colombia; colombia basin; confidence; cordillera; d h; data; distribution; earth sciences; eastern; figure; fit; gas; gas hydrates; gas resources; gas sands; gas volume; goodness; h y; hydrocarbons; hypothesis; ia figure; ia o; information; interval; issue; llanos; lo m; m b; magdalena; magdalena valley; methane gas; middle; ng t; o figure; offshore; oil earth; oil shale; parameters; potential; production; putumayo; research journal; resources; resources earth; results; rock; sands earth; scenario; sciences research; shale earth; shale gas; table; test; thickness; tight; total; tto; upper; valley basin; value; volume; y d", "summary": "33 2.4.8 Ratio between basin area and hydrocarbon generated .................................................. 34 2.4.9 Volume of hydrocarbon generated ....................................................................................... 35 2.4.10 Trapped hydrocarbons............................................................................................................. 37 2.4.11 Sensitivity analysis ..................................................................................................................... 38 2.5 Conclusions............................................................................................................................................ 38 2.6 Bibliography ........................................................................................................................................ 39 2.7 Appendices .......................................................................................................................................... 39 2.7.1 Appendix 2-1 ............................................................................................................................. 39 2.7.2 Appendix 2-2 ............................................................................................................................. 40 3 RECOVERABLE ORIGINAL RESOURCES ................................................................................................... 41 3.1 General comments .............................................................................................................................. 41 3.1.1 Volumetric estimation ................................................................................................................ Calculations were made for the rest of the basins for which there was little or no data available, based on a hypothesis of linearity regarding hydrocarbon available for production being directly related to basin area (e.g. Vargas, 2009).", "mime": "application/pdf"}, {"id": "esrj-20901", "words": "4298", "extension": ".pdf", "flesch": "45", "author": "Pastor, Louis; Vanhoeserlande, Richard; Mojica, Alexis; Salamanca Heyman, Mar\u00eda", "title": "Using the micro \u2013 resistivity method to detect hispanic ancient floors at Nombre de Dios, Panam\u00e1", "date": "2010", "keywords": "dios; electric; figure; mojica; nombre; prospection; resistivity; site; \ufffd \ufffd", "summary": "M\u00e1s tarde, los trabajos de excavaci\u00f3n llevados a cabo en una de las zonas con anomal\u00edas el\u00e9ctricas fuertes concordaron con los resultados de esta prospecci\u00f3n geof\u00edsica, un sondeo de 0,5 x 0,5 x 0,2 m revel\u00f3 la parte superior de un nivel de guijarros, y esta estructura colonial descasaba sobre una capa h\u00fameda de material sedimentario superficial. GEOCIENCIAS DIC 2010-COLOR.vp Using the micro \u2013 resistivity method to detect hispanic ancient floors at Nombre de Dios, Panam\u00e1 Alexis Mojica1, Louis Pastor2, Richard Vanhoeserlande3, Mar\u00eda Salamanca Heyman4 1 Laboratorio de Ingenier\u00eda Aplicada, Centro Experimental de Ingenier\u00eda, Universidad Tecnol\u00f3gica de Panam\u00e1 E-mail: alexis.mojica@utp.ac.pa. 2 Laboratoire Sisyphe - Unit\u00e9 Mixte de Recherche 7619, Universit\u00e9 Pierre et Marie Curie, France, Coop\u00e9ration G\u00e9ophysique pour l\u2019Am\u00e9rique Central.", "mime": "application/pdf"}, {"id": "esrj-20984", "words": "4395", "extension": ".pdf", "flesch": "60", "author": "Nguimbous Kouoh, Jean Jacques; Manguelle-Dicoum, Eliezer", "title": "Contribution of topographic and penetrometric measurements to a site characterization, case of the Kekem Landslide, National Road N\u00b05 (Western Cameroon)", "date": "2010", "keywords": "area; figure; kekem; landslide; penetrometer; points; road; site; slope; study; topographic", "summary": "Topographic map of the basement roof along slipped area). Topographic maps of the slipped area (Figure 8a and 8b) have the same morphological features.", "mime": "application/pdf"}, {"id": "esrj-20991", "words": "5311", "extension": ".pdf", "flesch": "51", "author": "Mart\u00ednez, Lina Fernanda; Zuluaga C., Carlos A.", "title": "Thermal modeling of pluton emplacement and associated contact metamorphism:Parashi stock emplacement in the Serran\u00eda de Jarara (Alta Guajira, Colombia)", "date": "2010", "keywords": "contact; country; emplacement; guajira; hornblende; jarara; parashi; plagioclase; pluton; rock; stock; temperature; years", "summary": "Cartograf\u00eda e historia geol\u00f3gica de la Alta Guajira, implicaciones en la b\u00fasqueda de recursos minerales, acuerdo Geolog\u00eda de la parte sureste de la Pen\u00ednsula de La Guajira.", "mime": "application/pdf"}, {"id": "esrj-20992", "words": "5045", "extension": ".pdf", "flesch": "65", "author": "Saravanan, S.; Chandrasekar, N.", "title": "Potential littoral sediment transport along the coast of South Eastern Coast of India", "date": "2010", "keywords": "area; beach; coast; direction; drift; india; kanyakumari; longshore; sediment; sediment transport; study; transport; wave; zone", "summary": "Chandramohan (1988) have discussed and estimated the rate of longshore sediment transport along the Indian coast. Chandramohan and Nayak (1991) have accounted the wave induced longshore sediment transport at different places along Indian coast.", "mime": "application/pdf"}, {"id": "esrj-20993", "words": "6813", "extension": ".pdf", "flesch": "48", "author": "R\u00edos R, Carlos Alberto; Castellanos A., Oscar Mauricio; Takasu, Akira", "title": "X-ray color maps of the zoned garnets from Silgar\u00e1 Formation metamorphic rocks,SantanderMassif, Eastern Cordillera (Colombia)", "date": "2010", "keywords": "chemical; core; dissolution; garnet; growth; mol%; rim; r\u00edos; santander; zoning", "summary": "The qualitative line scan through the interior of the grain suggests that zoning in Ca is smooth whatever the process that formed this zoning pattern, the consequences for garnet zoning were mild. However, garnet zoning may have been influenced not only by metamorphic processes but also by deformation.", "mime": "application/pdf"}, {"id": "esrj-20994", "words": "3799", "extension": ".pdf", "flesch": "43", "author": "Guerrero, Jairo G.; Vargas, Carlos Alberto; Montes, Luis", "title": "Reservoir characterization by multiattribute analysis: The Orito field case", "date": "2010", "keywords": "analysis; attributes; caballos; figure; formation; porosity; properties; volume; wells", "summary": "The same trend is present in core and well logs analysis (left) and in predicted seismic attributes (right), where the samples were discriminated according to environment previously identified in wells. S J. Vol. 14, No. 2 (December, 2010): 173-180Research Groupin Geophysics UNIVERSIDAD NACIONAL DE COLOMBIA Keywords: reservoir characterization, seismic attributes, seismic inversion, Caballos formation, Orito field.", "mime": "application/pdf"}, {"id": "esrj-20995", "words": "3951", "extension": ".pdf", "flesch": "58", "author": "Della, Noureddine", "title": "Laboratory testing of the Monotonic behavior of partially saturated sandy soil", "date": "2010", "keywords": "coefficient; liquefaction; pressure; sand; saturation; skempton; soil; tests", "summary": "However, the recent results of the in-situ tests include the measurements of the velocity of the compression waves (Vp), and indicate that the condition of partial saturation can exist above the level of the phreatic ground for a few meters due to the presence of bubbles of air (Ishihara et al., 2001 and Nakazawa et al., 2004) or the presence of gas bubbles in the marine sediments and sands containing oils as noted by Mathiroban and Grozic (2004).The effects of a condition of partial saturation on liquefaction were approached by some researchers (as by Atigh and Byrne, 2004; Mathiroban and Grozic, 2004; Pietruszczak et al., 2003; Yang and Sato, 2001).The condition of saturation of soil samples in laboratory can be evaluated by measuring the value of the coefficient of Skempton B or the speed of compression waves Vp as suggested by Ishihara et al. (2001). Results of the tests Drained compression Tests Figure 5 shows the results of the drained compression tests carried out for coefficients of Skempton B ranging between 13 and 90%.", "mime": "application/pdf"}, {"id": "esrj-20996", "words": "2871", "extension": ".pdf", "flesch": "50", "author": "Akinmosin, A.; Osinowo, O.O.", "title": "Petrographical Study of Ewekoro Carbonate Rocks, in Ibese, South Western Nigeria", "date": "2010", "keywords": "carbonate; ewekoro; formation; ibese; limestone; nigeria; rocks; south; western", "summary": "This work is aimed at identifying and describing both the allochemical and orthochemical components of Ibese limestone deposits based on petrographic studies and to deduce the depositional environment. Conclusion Petrographic studies of Ibese limestone deposit have shown that the rock is highly fossiliferous with the identified fossils indicating deposition in an open shelf environment.", "mime": "application/pdf"}, {"id": "esrj-21089", "words": "4067", "extension": ".pdf", "flesch": "50", "author": "Gal\u00e1n, Remy; Casallas1, Iv\u00e1n", "title": "DETERMINATION OF EFFECTIVE ELASTIC THICKNESS OF THE COLOMBIAN ANDES USING SATELLITE-DERIVED GRAVITY DATA", "date": "2010", "keywords": "admittance; andes; colombian; data; gravity; models; thickness; value; \ufffd \ufffd", "summary": "The difference between these two potentials is known as perturbation potential or just as potential difference T: T = W - U (1) When atmospheric attraction disregards, T is harmonic outside Earth and satisfies Laplace\u2019s equation: \ufffdT \ufffd 0 (2) These parameters allow obtaining several functions of the gravity field (gravity anomalies, geoid undulations, ver- tical deflections, etc.) through its relationship with the anomalous potential T, whose series development is accord- ing to (Heiskanen and Moritz 1967, Torge 2001): T r GM r a n nm n n m n ( , ( )) Montavani et al (2001) get a spatial variations map using empirical correlations between tidal gravity anomalies and elastic thickness values, finding for Colombian Andes a value between 69 and 79 km.", "mime": "application/pdf"}, {"id": "esrj-21090", "words": "7048", "extension": ".pdf", "flesch": "49", "author": "Henao M, Jos\u00e9 Antonio; Carre\u00f1o, Ang\u00e9lica Mar\u00eda; Quintero D, John Alexander; Candela H, Sol \u00c1ngel; R\u00edos R, Carlos Alberto; Ramos G, Miguel A.; Pinilla A., Jes\u00fas Andelfo", "title": "PETROGRAPHY AND APPLICATION OF THE RIETVELD METHOD TO THE QUANTITATIVE ANALYSIS OF PHASES OF NATURAL CLINKER GENERATED BY COAL SPONTANEOUS COMBUSTION", "date": "2010", "keywords": "analysis; cerrej\u00f3n; clinker; coal; combustion; figure; ite; material; method; phases; powder; quintero; rietveld; rocks; spontaneous", "summary": "The saturation with Mg2+ and subse- quent glycosylation of natural clinker samples (tigerstripe type, NC-1, and highly oxidized type, NC-2) produced dis- placements of the reflection (001) of the band corresponding 21 PETROGRAPHY AND APPLICATION OF THE RIETVELD METHOD TO THE QUANTITATIVE ANALYSIS OF PHASES OF NATURAL CLINKER GENERATED BY COAL SPONTANEOUS COMBUSTION to the smectite group from 15.07 to 17.38 \u00c5 for sample NC-1 and from 15.17 to 17.52 \u00c5 for sample NC-2. Rwp values (20.33% and 20.25% for samples NC-1 and NC-2, respectively) indicate that the refinement as a whole has been satisfactory if we con- sider that natural clinker samples consist of a mixture of min- erals which hinders the achievement of lower refining indicators.", "mime": "application/pdf"}, {"id": "esrj-21092", "words": "6848", "extension": ".pdf", "flesch": "56", "author": "Marti, Ali Ihsan; Yerdelen, Cahit; Kahya, Ercan", "title": "ENSO MODULATIONS ON STREAMFLOW CHARACTERISTICS", "date": "2010", "keywords": "+ \ufffd; enso; kahya; original; scenario; series; stations; streamflow; \ufffd \ufffd", "summary": "In the same context, Karab\u00f6rk and Kahya (2003) speculated that the occurrence of ENSO signals resulted from the interac- tions between ENSO events and North Atlantic Oscillation (NAO) as NAO has direct impacts on Turkish precipitation and streamflow patterns. For streamflow variable, Dettinger et al. (2000) studied multi-scale streamflow variability in relation to ENSO events using over 700 stations worldwide.", "mime": "application/pdf"}, {"id": "esrj-21093", "words": "8647", "extension": ".pdf", "flesch": "62", "author": "Atya, Magdy A.; Khachay, Olga A.; Latif, Aiman Abdel; Khachay, Oleg Y.; El-Qady, Gad M; Taha, Ayman I", "title": "GEOPHYSICAL CONTRIBUTION TO EVALUATE THE HYDROTHERMAL POTENTIALITY IN EGYPT: CASE STUDY: HAMMAM FARAUN AND ABU SWIERA, SINAI, EGYPT", "date": "2010", "keywords": "abu; area; egypt; faraun; figure; geophysical; geothermal; gulf; hammam; hammam faraun; khz; profile; sinai; source; study; suez; swiera; water", "summary": "Material and methods Two groups of geothermal water samples have been col- lected from Hammam Faraun and Abu Swiera hot springs. When correlation with Gulf of Suez and rain water , we fiend that sample numbers 1 and 2 related to rain water and affected by Gulf of Suez water with different ranges.", "mime": "application/pdf"}, {"id": "esrj-21094", "words": "6142", "extension": ".pdf", "flesch": "66", "author": "Latif, Aiman Abdel; Kashouty, Mohamed El", "title": "GROUNDWATER INVESTIGATION IN AWLAD SALAMEH SOUTHERN SOHAG, UPPER EGYPT", "date": "2010", "keywords": "aquifer; area; awlad; case; egypt; groundwater; land; nile; ppm; said; salameh; salinity; sediments; sohag; valley", "summary": "The soil was salinized and decrease the income per capita due to the increase in water salinity. The Nile valley, in Sohag area, is bounded from east and west by the Eocene Limestone pla- teau.", "mime": "application/pdf"}, {"id": "esrj-21095", "words": "5998", "extension": ".pdf", "flesch": "54", "author": "Atya, Magdy A.; Khachay, Olga A; Soliman, Mamdouh M.; Khachay, Oleg Yu; Khalil, Ahmed B.; Gaballah, Mahmoud; Shaaban, Fathy F.; El Hemali, Ibrahim A.", "title": "CSEM IMAGING OF THE NEAR SURFACE DYNAMICS AND ITS IMPACT FOR FOUNDATION STABILITY AT QUARTER 27, 15th OF MAY CITY, HELWAN, EGYPT", "date": "2010", "keywords": "center; city; data; electromagnetic; hachay; khz; profile; quarter; receiver; surface; transmitter", "summary": "Esta zona constituye el centro de la debilidad del subsuelo, que a su vez, interact\u00faacon el centro de peso de la construcci\u00f3n que ha llevado a colapsos catastr\u00f3ficos. Los objetivos de todo el proceso es validar la eficacia de la t\u00e9cnica para recoger los m\u00ednimos cambios del centro de la debilidad, y as\u00ed, estudiar su relaci\u00f3n con el centro de peso de construcciones cercanas, para recomendar un procedimiento que reduzca al m\u00ednimo la destrucci\u00f3n de los recursosen el sitio de la investigaci\u00f3n.", "mime": "application/pdf"}, {"id": "esrj-21096", "words": "4294", "extension": ".pdf", "flesch": "62", "author": "A.S, Ekine; K. M, Onuoha,", "title": "SEISMIC GEOHISTORY AND DIFFERENTIAL INTERFORMATIONAL VELOCITY ANALYSIS IN THE ANAMBRA BASIN, NIGERIA", "date": "2010", "keywords": "analysis; anambra; basin; geohistory; nigeria; velocity; \ufffd \ufffd", "summary": "Methodology P-waves travelling through sedimentary layers are found to obey a power law equation given by Acheson (1981) as t az bn\ufffd \ufffd (1) where t = the one-way travel time; z = depth to reflector; a, b and n = constants. Key words: seismic geohistory; seismic section; differential velocity; Anambra basin.", "mime": "application/pdf"}, {"id": "esrj-21098", "words": "6332", "extension": ".pdf", "flesch": "69", "author": "Londo\u00f1o B., John Makario", "title": "ACTIVITY AND Vp/Vs RATIO OF VOLCANO-TECTONIC SEISMIC SWARM ZONES AT NEVADO DEL RUIZ VOLCANO, COLOMBIA", "date": "2010", "keywords": "activity; crater; del; earthquakes; nevado; nrv; ratio; ruiz; seismic; swarm; volcano; zones", "summary": "Bohorquez (1993) analyzed arrival times of P and S waves, polarity of the P wave, spectra of frequencies and par- ticle motion of VT earthquake swarms occurred at August - October 1990. It is known that changes in Vp/Vs ratio may be related to changes in the physical and chemical properties of the me- dium, such as partial saturation of rocks, changes in temper- ature, density, and steam content (Birch, 1961;", "mime": "application/pdf"}, {"id": "esrj-21104", "words": "5447", "extension": ".pdf", "flesch": "51", "author": "Hern\u00e1ndez, Orlando; von Frese, Ralph R.B.; Khurama, S., Khurama, S.", "title": "GEOPHYSICAL EVIDENCE FOR AN IMPACT CRATER IN VICHADA, NORTHWESTERN SOUTH AMERICA AND ITS ECONOMIC POTENTIAL", "date": "2009", "keywords": "air; anomaly; crater; enero; gravity; impact; structure; tcfaga; terrain; vichada; vol; \ufffd \ufffd", "summary": "Clearly, modern aeromagnetic surveying can provide another important test of the crustal properties of Vichada impact crater. Key words: Impact crater, Vichada, Gravity, Magnetic.", "mime": "application/pdf"}, {"id": "esrj-21105", "words": "5505", "extension": ".pdf", "flesch": "63", "author": "Okunlola, O.A.; Adeigbe, O.C.; Oluwatoke, O.O.", "title": "COMPOSITIONAL AND PETROGENETIC FEATURES OF SCHISTOSE ROCKS OF IBADAN AREA, SOUTHWESTERN NIGERIA", "date": "2009", "keywords": "amphibole; area; enero; ibadan; nigeria; okunlola; plot; quartz; quartz schist; rocks; schist; trace; vol", "summary": "These schistose rocks are mainly quartz schist and amphibole schist. Geochemical Features Samples and Analytical Techniques Seven unaltered and fresh samples each of quartz schist and amphibole schist were analyzed for both major oxide and trace element concentrations at the Activation Laboratories, Canada, using the inductively coupled plasma analytical technique.", "mime": "application/pdf"}, {"id": "esrj-21106", "words": "5667", "extension": ".pdf", "flesch": "59", "author": "Campos, A.; Moreno, S.; Molina, R.", "title": "CHARACTERIZATION OF VERMICULITE BY XRD AND SPECTROSCOPIC TECHNIQUES", "date": "2009", "keywords": "campos; charge; clay; enero; et al; mineral; vermiculite; vol", "summary": "The X-Ray identification and crystal struc- tures of clay minerals. Interlayer and interca- lation complexes of clay minerals.", "mime": "application/pdf"}, {"id": "esrj-21107", "words": "2659", "extension": ".pdf", "flesch": "60", "author": "Jim\u00e9nez, Eduardo; Vargas, Carlos A.; Montes, Luis A.", "title": "CRS SEISMIC PROCESSING OF A GEOLOGICAL COMPLEX AREA", "date": "2009", "keywords": "crs; figure; nmo; section; vol; \ufffd \ufffd", "summary": "Comparing the figures 9a and 9b the random noise level is reduced from 27.8% in NMO image to 17.9 % in CRS image. A second fault inferred from seismic section, allows the ele- vation of basement over the footwall block below the fault.", "mime": "application/pdf"}, {"id": "esrj-21108", "words": "4015", "extension": ".pdf", "flesch": "65", "author": "Onyedim, G.C.; Alagoa, K.D.; Adedokun, I.O.; Aderogba, A.A.; Ovuru, C.", "title": "MAPPING HIGH-ANGLE BASEMENT FAULTS IN THE MIDDLE BENUE TROUGH, NIGERIA FROM GRAVITY INVERSION SURFACE", "date": "2009", "keywords": "area; basement; basins; benue; data; faults; gravity; map; middle; nigeria; surface; trough", "summary": "In this study of the middle Benue trough, Nigeria, gravity data for the area was bandpass filtered and inverted to generate a topographic surface map of the basement. In this cir- cumstance, this study was aimed at utilizing an indirect method to map faults and associated structures in the basement through the analysis and interpretation of gravity data.", "mime": "application/pdf"}, {"id": "esrj-21109", "words": "6959", "extension": ".pdf", "flesch": "63", "author": "O.C, Adeigbe; A. E, Salufu", "title": "GEOLOGY AND DEPOSITIONAL ENVIRONMENT OF CAMPANO-MAASTRICHTIAN SEDIMENTS IN THE ANAMBRA BASIN, SOUTHEASTERN NIGERIA: EVIDENCE FROM FIELD RELATIONSHIP AND SEDIMENTOLOGICAL STUDY", "date": "2009", "keywords": "ajali; basin; enero; enugu; environment; formation; mamu; nigeria; sandstone; shale; study; vol", "summary": "Department of Geology, University of Ibadan, Nigeria olukris2001@yahoo.com and seemeomoh@yahoo.com ABSTRACT The study area lies within the Anambra Basin and it is made up of Enugu Shale, Mamu Formation, Ajali Sandstone, and Nsukka Formation. Key words: Anambra Basin, Geology, depositional environment, Mamu Formation and Ajali Sandstone 148 Manuscript received: 11/08/2009 Accepted for publication: 18/12/2009 ENERO 30-GEOCIENCIAS-VOL 13-2 2009.prn D:\\GEOCIENCIAS 13-2 DIC 2009\\GEOCIENCIAS-VOL 13-2 2009.vp s\u00c6bado, 30 de enero de 2010 18:16:33 p p p Composite 133 lpi at 45 degrees RESUMEN", "mime": "application/pdf"}, {"id": "esrj-21110", "words": "7111", "extension": ".pdf", "flesch": "57", "author": "A., Abdel-Lattif.; Kashouty, Mohamed El", "title": "STATISTICAL INVESTIGATION OF THE GROUNDWATER SYSTEM IN DARB EL-ARBAEIN, SOUTHWESTERN DESERT, EGYPT", "date": "2009", "keywords": "aquifer; arbaein; darb; darb el; egypt; el arbaein; enero; fig; groundwater; group; loss; sandstone; vol", "summary": "Groundwater conditions, Nubia sand- stone aquifer, south of Gebel Abu Rayan El Baharai, Darb El Arbaein area, western Desert, Egypt. Group B con- tains fourteen samples 56, 57, 58, 59, 60, 61, 62, 63, 64, 67, 69, 70, 71, and 72 (northeastern and southwestern part of southern Darb El Arbaein).", "mime": "application/pdf"}, {"id": "esrj-21111", "words": "4438", "extension": ".pdf", "flesch": "58", "author": "Yesugey, Sadik Cengiz", "title": "COMPARATIVE EVALUATION OF THE INFLUENCING EFFECTS OF GEOMAGNETIC SOLAR STORMS ON EARTHQUAKES IN ANATOLIAN PENINSULA", "date": "2009", "keywords": "center; data; day; earthquakes; magnitude; range; storms; values", "summary": "+902324535716 Fax: +902324532986 Corresponding author Email: cengiz.yesugey@deu.edu.tr ABSTRACT Earthquakes are tectonic events that take place within the fractures of the earth\u2019s crust, namely faults. Above certain scale, earthquakes can result in widespread fatalities and substantial financial loss.", "mime": "application/pdf"}, {"id": "esrj-21112", "words": "4767", "extension": ".pdf", "flesch": "54", "author": "K, Srinivasamoorthy; VS, Sarma; M, Vasantavigar; K, Vijayaraghavan; S, Chidambaram; R, Rajivganthi", "title": "ELECTRICAL IMAGING TECHNIQUES FOR GROUNDWATER POLLUTION STUDIES: A CASE STUDY FROM TAMIL NADU STATE, SOUTH INDIA", "date": "2009", "keywords": "area; contamination; depth; groundwater; imaging; india; resistivity; rock; study; survey; tamil; zone", "summary": "The profile indicates that the area is underlined by varying high resistivity rock materials by sharp changes in their electrical resistivity values. The fourth survey conducted at Chellapuram indicates high resistivity rock materials which are layered and boundaries of the different re- sistivity materials are clearly defined by the sharp change in electrical resistivity.", "mime": "application/pdf"}, {"id": "esrj-21113", "words": "2702", "extension": ".pdf", "flesch": "51", "author": "Krishnamacharyulu, S.K.G.; Poornachandra Rao, G.V.S.", "title": "MAGNETIC AND PALAEOMAGNETIC STUDIES AS AN AID IN DECIPHERING GROUNDWATER FLOW: A CASE STUDY FROM DECCAN TRAPS", "date": "2009", "keywords": "anomalies; area; deccan; flow; groundwater; india; palaeomagnetic; studies; study", "summary": "The mag- netic anomalies along with palaeomagnetic studies are used to locate barriers obstructing groundwater flow in a basaltic terrain. This paper presents a novel idea on the utilization of the palaeomagnetic studies cou- pled with ground magnetic anomalies in deciphering groundwater flow.", "mime": "application/pdf"}, {"id": "esrj-21114", "words": "6052", "extension": ".pdf", "flesch": "67", "author": "Muzio, Rossana; Peel, Elena; Morales, Ethel; Veroslavsky, Gerardo; Conti, Bruno", "title": "MESOZOIC MAGMATISM IN EAST URUGUAY: PETROLOGICAL CONSTRAINTS RELATED TO THE SIERRA SAN MIGUEL REGION", "date": "2009", "keywords": "dykes; et al; felsic; magmatism; mesozoic; miguel; muzio; region; rocks; samples; san; sierra; sub; uruguay", "summary": "Lithic breccias and autoclastic breccias associ- ated with the felsic volcanics in Sierra San Miguel region. Geolog\u00eda de la Sierra de San Miguel, depar- tamento de Rocha (Uruguay).", "mime": "application/pdf"}, {"id": "esrj-21115", "words": "4145", "extension": ".pdf", "flesch": "64", "author": "A., Akinmosin; O.O., Osinowo; M. A., Oladunjoye", "title": "RADIOGENIC COMPONENTS OF THE NIGERIAN TAR SAND DEPOSITS", "date": "2009", "keywords": "adegoke; basin; dose; enu; formation; gamma; geology; nigeria; samples; sand; shale; tar", "summary": "Ac (Th) Ac228 (Bqkg-1) Absorbed Dose Rate (nGyhr-1) Dose Equivalents (mSvyr-1) S1 Tar sand 35.80 \u00b1 6.92 14.22 \u00b1 0.7 24.69 0.216 S6 Tar sand 20.48 \u00b1 1.30 11.13 \u00b10.56 16.11 0.141 S8 Tar sand 88.4. \u00b1 3.27 25.11 \u00b1 0.9 54.64 0.473 S9 Slightly impregnated bituminous sand ND 2.23 \u00b10.28 1.48 0.013 S4 Tar sand 148.07\u00b19.81 86.81 \u00b1 2.6 121.33 1.06 S10 Tar sand 30.8 \u00b1 1.16 17.76 \u00b10.52 24.63 0.20 S11 Tar sand ND 15.19 \u00b16.08 65.07 0.57 S12 For instance, naturally but non-series 40K was detected at 1460.75keV in all the samples except in Tar L2, Tar L3, Tar sand 13, Tar sand 17 and Tar sand 18; there activity values range between 7.04 \u00b1 0.45Bqkg-1 and 1003.91 \u00b1 48.57Bqkg-1 The 238U series are more prominent in the sam- ples analyzed than the 232Th series.214Bi activity val- ues range between 5.02 \u00b1 0.33Bqkg-1 and 193.01 \u00b1 19.94Bqkg-1; 226Ra activity values range between 6.10 \u00b1 0.84BgKg-1 and 148.07 \u00b1 9.81BgKg-1 ; 228Ac activity values range between 2.14 \u00b1 0.60Bqkg-1 and 53.66 \u00b1 4.44Bqkg-1 ; 208TI values range between 1.09 \u00b1 0.38Bqkg-1 and 86.81 \u00b1 2.6Bqkg-1.", "mime": "application/pdf"}, {"id": "esrj-21116", "words": "5061", "extension": ".pdf", "flesch": "50", "author": "L.L.A, Castillo; T. de S., Kazmierczak; Jr., F., Chemale", "title": "RIO GRANDE CONE TECTONO-STRATIGRAPHIC MODEL \u2013 BRAZIL: SEISMIC SEQUENCES", "date": "2009", "keywords": "attributes; cone; data; faults; figure; geociencias; grande; interpretation; julio; model; rio; rio grande; seismic; sequences; stratigraphy; vol", "summary": "Interpreta\u00e7\u00e3o Sismoes- tratigrafica da Por\u00e7\u00e3o da Bacia de Pelotas que engloba o Cone de Rio Grande e a Avalia\u00e7\u00e3o do seu Potencial Petrol\u00edfero. Dip seismic line display of Seismic Attribute analysis and seismic stratigraphy interpretation JULIO 6-GEOCIENCIAS-VOL 13-1 2009.prn D:\\GEOCIENCIAS 13-1 JUN 2009\\GEOCIENCIAS-VOL 13-1 2009.vp martes, 07 de julio de 2009 18:10:50 p p p Composite 133 lpi at 45 degrees a sequence stratigraphic model, and delineated by geomorphological elements like channels.", "mime": "application/pdf"}, {"id": "esrj-21117", "words": "5319", "extension": ".pdf", "flesch": "63", "author": "Balobaev, V. T.; Kutasov, I. M.; Eppelbaum, L. V.", "title": "THE MAXIMUM EFFECT OF DEEP LAKES ON TEMPERATURE PROFILES \u2013 DETERMINATION OF THE GEOTHERMAL GRADIENT", "date": "2009", "keywords": "borehole; climate; effect; geothermal; lake; profiles; surface; temperature; \ufffd \ufffd", "summary": "For distances \u00f1 > 0 from eq. (3) we obtain \ufffd \ufffd \ufffd* ( , ) ( )\ufffd \ufffd \ufffd \ufffd dT z dz T dM dzis ot \ufffd (11) or \ufffd\ufffd \ufffd \ufffd\ufffd \ufffd \ufffd \ufffd* ( )T T dM dzis ot (12) Introducing the reduced temperatures, TR(\ufffd, z) from eq. Then the values of \ufffd\ufffd\ufffd\u00f1, z) can be determined from eqs.", "mime": "application/pdf"}, {"id": "esrj-21118", "words": "4211", "extension": ".pdf", "flesch": "55", "author": "A. Candeiro, Carlos Roberto", "title": "VERTEBRATES OF THE MAR\u00cdLIA FORMATION (LATE MAASTRICHTIAN) FROM THE PEIR\u00d3POLIS PALEONTOLOGICAL SITE: TOWARD A BETTER UNDERSTANDING", "date": "2009", "keywords": "area; bauru; brazil; cretaceous; formation; gerais; julio; mar\u00edlia; minas; peir\u00f3polis; site; vertebrate; vol", "summary": "Correla\u00e7\u00e3o e extens\u00e3o das unidades litoestratigr\u00e1ficas do Grupo Bauru, definidas em territ\u00f3rio paulista, nos estados de Minas Gerais, Goi\u00e1s, Mato Grosso do Sul e Paran\u00e1. Morfologia del esqueleto axial de los dinosaurios Titanosaurios (Saurischia, Sauropoda) del estado de Minas Gerais, Brasil.", "mime": "application/pdf"}, {"id": "esrj-21185", "words": "20107", "extension": ".pdf", "flesch": "61", "author": "Castellanos A., \u00d3scar M.; R\u00edos R, Carlos A; Takasu, Akira", "title": "A NEW APPROACH ON THE TECTONOMETAMORPHIC MECHANISMS ASSOCIATED WITH P\u2013T PATHS OF THE BARROVIAN-TYPE SILGAR\u00c1 FORMATION AT THE CENTRAL SANTANDER MASSIF, COLOMBIAN ANDES", "date": "2008", "keywords": "andes; biotite; c m; formation; garnet; kyanite; massif; metamorphism; mineral; muscovite; p c; quartz; rocks; r\u00edos; santander; silgar\u00e1; staurolite", "summary": "Field and hand-specimen photographs from the Silgar\u00e1 Formation metamorphic rocks at the CSM. (c) Garnet-bearing pelitic schists displaying a pervasively schistosity, which represent the most common type of metamorphic rock.", "mime": "application/pdf"}, {"id": "esrj-21186", "words": "5094", "extension": ".pdf", "flesch": "63", "author": "Rahman, Syed Mustafizur; Islam, Rezaul; Keramat, Mumnunul; Ul-Islam, Md. Sultan", "title": "DEEP CRUSTAL STRUCTURE AND ESTIMATION OF MOHO IN THE LHASA TERRANE OF CENTRAL TIBET", "date": "2008", "keywords": "attributes; central; depth; et al; frequency; indepth; lhasa; moho; plateau; structure; tibet", "summary": "sultan_ul_islam@yahoo.com ABSTRACT Seismic attributes analysis is applied to INDEPTH II seismic profiles to develop a better understanding of the deep crustal structure and geodynamics of the Lhasa Terrane in the central Tibet area. In the present days, seismic attributes analyses are now relatively stan- dard techniques in the seismic exploration industry.", "mime": "application/pdf"}, {"id": "esrj-21187", "words": "4972", "extension": ".pdf", "flesch": "53", "author": "Kahya, Ercan; Demirel, Mehmet C.; B\u00e9g, Osman A.", "title": "HYDROLOGIC HOMOGENEOUS REGIONS USING MONTHLY STREAMFLOW IN TURKEY", "date": "2008", "keywords": "analysis; climate; cluster; febrero; hydrologic; kahya; months; regions; streamflow; study; turkey; vol", "summary": "Key words: Cluster analysis, Ward\u2019s method, streamflow, homogeneous region, regionalization, Turkey 181 Manuscript receiver: August 18th, 2008. In cluster analysis, the choice of variables, clus- tering technique and dissimilarity measure signifi- cantly influence the results (Fovell 1993;", "mime": "application/pdf"}, {"id": "esrj-21188", "words": "5797", "extension": ".pdf", "flesch": "58", "author": "Pab\u00f3n, J.D.; Dorado, J.", "title": "INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION", "date": "2008", "keywords": "aeropuerto; america; caribbean; climate; colombia; days; dpi; isv; julian; oscillation; period; precipitation; rainfall; region; south; variability", "summary": "Country 1 Montego Bay 18,50 \u201377,91 1 Jamaica 2 3 Las Am\u00e9ricas Aeropuerto San Juan Intl 18,43 18,41 \u201369,66 \u201366,00 18 19 Dominican Rep. Puerto Rico 4 5 Barahona Kingston 18,20 17,93 \u201371,10 \u201376,78 3 3 Dominican Rep. Jamaica 6 Aeropuerto El Embrujo 13,37 \u201381,35 1 Colombia 7 Aeropuerto Sesquicentenario 12,58 \u201381,72 1 Colombia 8 Aeropuerto Queen Beatrix 12,50 \u201370,01 18 Aruba 9 10 Aeropuerto Hato Aeropuerto Flamingo 12,20 12,15 \u201368,96 \u201368,28 9 6 Netherl Antills Netherl Antills 11 12 Manaure Coro 11,77 11,41 \u201372,45 \u201369,66 1 16 Colombia Venezuela 13 14 Matitas Esc Agr Carraipia 11,25 11,22 \u201373,05 \u201372,37 20 118 Colombia Colombia 15 Apto. Country 35 El Cucharo 6,87 \u201373,37 975 Colombia 36 Tulio Ospina 6,53 \u201375,92 1438 Colombia 37 Aeropuerto Olaya Herrera 6,37 \u201375,97 1490 Colombia 38 Panamericana 6,22 \u201377,40 4 Colombia 39 Aeropuerto Puerto Carre\u00f1o 6,18 \u201367,48 50 Colombia 40 41 Tuparros Boca Torno Surbata Bonza 6,05 5,82 \u201367,52 \u201373,07 250 2485 Colombia Colombia 42 43 U.P.T.C. Isla del Santuario 5,57 5,47 \u201373,22 \u201373,73 2690 2580 Colombia Colombia 44 Aeropuerto Mateca\u00f1a 5,37 \u201377,08 53 Colombia 45 Aeropuerto El Carano 5,12 \u201377,08 53 Colombia 46 La Camelia 5,08 \u201376,45 1670 Colombia 47 48 Aeropuerto La Nubia Aeropuerto El Ed\u00e9n 5,03 4,78 \u201375,47 \u201376,28 20,80 1204 Colombia Colombia 49 50 Tibaitat\u00e1 Las Gaviotas 4,70 4,55 \u201374,22 \u201370,93 2543 171 Colombia Colombia 51 52 Centro Ad.", "mime": "application/pdf"}, {"id": "esrj-21189", "words": "12800", "extension": ".pdf", "flesch": "66", "author": "Akintola, O. F; Adekeye, J. I. D.", "title": "MINERALIZATION POTENTIALS OF PEGMATITES IN THE NASARAWA AREA OF CENTRAL NIGERIA", "date": "2008", "keywords": "african; area; bdl; elements; feldspars; mineralization; muscovites; nigeria; pan; pegmatites", "summary": "White Micas (Muscovites) in the Pegmatites The average chemical composition of the muscovites is typical of rare element pegmatites with high, F, Cs, Rb and Li (Deer et al., 1966; Gordiyenko, 1971) The low average Nb/Ta ra- tio for the muscovites (2.965) is still lower than the (4\u00b10.7) upper limit diagnostic of Ta-pegmatites (Cerny, 1989).", "mime": "application/pdf"}, {"id": "esrj-21190", "words": "13182", "extension": ".pdf", "flesch": "61", "author": "Zuluaga C., Carlos A.; Stowell, Harold H.", "title": "MULTIDISCIPLINARY APPROACH TO STUDY MIGMATITES: ORIGIN AND TECTONIC HISTORY OF THE NASON RIDGE MIGMATITIC GNEISS, WENATCHEE BLOCK, CASCADES CRYSTALLINE CORE, WA, USA", "date": "2008", "keywords": "biotite; cascades; core; figure; garnet; gneiss; leucosome; melting; migmatitic; n c; nason; nason ridge; plagioclase; quartz; ridge; rocks; schist; wenatchee", "summary": "Nason Ridge Migmatitic Gneiss rocks show variable evidence for retrogression. The presence of selvages and thermody- namic model predictions suggest partial melting for the origin of discontinuous leucosome lenses present in Nason Ridge Migmatitic Gneiss lithologies.", "mime": "application/pdf"}, {"id": "esrj-21191", "words": "1878", "extension": ".pdf", "flesch": "56", "author": "Demirel, Mehmet C.; Kahya, Ercan; Rivera, Diego", "title": "DISCUSSION OF \u201cCLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO\u201d BY MAURICIO OROZCO-ALZATE, AND C\u00c9SAR GERM\u00c1N CASTELLANOS-DOM\u00cdNGUEZ", "date": "2008", "keywords": "analysis; clustering; demirel", "summary": "In- deed, Arciniega-Ceballos et al. (2008) applied bandpass filters before clustering in seismic data and Rouyer et al., (2008) applied a wave- let-based clustering technique. Also, its multi-resolution property can help detecting the clusters at different levels of accuracy (Sheikholeslami et al., 1998).", "mime": "application/pdf"}, {"id": "esrj-21192", "words": "14920", "extension": ".pdf", "flesch": "56", "author": "R\u00edos Reyes, Carlos Alberto; Castellanos Alarc\u00f3n, Oscar Mauricio; Takasu, Akira", "title": "A NEW INTERPRETATION FOR THE GARNET ZONING IN METAPELITIC ROCKS OF THE SILGAR\u00c1 FORMATION, SOUTHWESTERN SANTANDER MASSIF, COLOMBIA", "date": "2008", "keywords": "core; element; figure; formation; garnet; garnet zoning; growth; low; mineral; rim; rocks; santander; silgar\u00e1; staurolite; trace; vol; zone; zoning", "summary": "Yttrium is potentially useful for monitoring reactions involving Ca-rich minerals such as epidote and plagioclase because this element substitutes for Ca in mineral structures and Y discon- tinuities in garnet zoning may correlate with inflec- tions in Ca zoning (Hickmott & Spear, 1992). If the consumption or production of these phases and the changes in how Ca and other elements are locally partitioned between garnet and other minerals, accounts for garnet zoning, there should be trends in zoning in other Ca-rich phases.", "mime": "application/pdf"}, {"id": "esrj-21193", "words": "15747", "extension": ".pdf", "flesch": "57", "author": "Rayo, Lorena; Zuluaga, Carlos A.", "title": "MATERIAL ASSIMILATION IN A SHALLOW DIAPIRIC FORCEFUL INTRUSION: EVIDENCE FROM MICROSTRUCTURES AND CSD ANALYSIS IN A PORPHYRITIC INTRUSIVE BODY, \u201cLA L\u00cdNEA\u201d TUNNEL, CENTRAL CORDILLERA, COLOMBIA", "date": "2008", "keywords": "african; analysis; area; biotite; central; colombia; complex; contact; csd; elements; emplacement; evidence; granites; low; metal; mineralization; nasarawa; nigeria; pan; pegmatites; plagioclase; quartz; rocks; samples; schist; zone", "summary": "This paper discusses the geology and geochemistry of the Nasarawa area in relation to the source and controls of mineraliza- tion of rare metal pegmatites in the Nasarawa area. It is also clear from this area that there are two distinct rare metal generating events associated with the Pan African orogeny viz: Enrichment of the rare metals in the fluid-rich and deuterically altered main phase Pan African granite G18 and the spatially/ge- netically related pagmatites.", "mime": "application/pdf"}, {"id": "esrj-21196", "words": "10733", "extension": ".pdf", "flesch": "60", "author": "O.F., Akintola; J.I.D, Adekeye", "title": "MINERALIZATION CONTROLS AND PETROGENESIS OF THE RARE METAL PEGMATITES OF NASARAWA AREA, CENTRAL NIGERIA", "date": "2008", "keywords": "african; area; biotite; central; complex; elements; granites; metal; mineralization; nasarawa; nigeria; pan; pegmatites; quartz; rocks; zone", "summary": "This paper discusses the geology and geochemistry of the Nasarawa area in relation to the source and controls of mineraliza- tion of rare metal pegmatites in the Nasarawa area. It is also clear from this area that there are two distinct rare metal generating events associated with the Pan African orogeny viz: Enrichment of the rare metals in the fluid-rich and deuterically altered main phase Pan African granite G18 and the spatially/ge- netically related pagmatites.", "mime": "application/pdf"}, {"id": "esrj-21197", "words": "3955", "extension": ".pdf", "flesch": "53", "author": "Bakkali, Saad; Amrani, Mahacine", "title": "DENOISING RESISTIVITY PHOSPHATE \u201cDISTURBANCES\u201d USING HAAR MOTHER WAVELET TRANSFORM (SIDI CHENNANE, MOROCCO)", "date": "2008", "keywords": "analysis; disturbances; haar; mother; phosphate; resistivity; signal; transform; wavelet; \ufffd p; \ufffd \ufffd", "summary": "The family of simpler wavelets, which will be adopted in the present work, is that the Haar wavelet : \ufffd \ufffd \ufffd ( ) , ( ) , ( ) [ , ] x if x x if x x if x \ufffd \ufffd \ufffd \ufffd \ufffd \ufffd \ufffd \ufffd \ufffd 1 0 1 2 1 1 2 1 0 01 For the one-dimensional no stationary function f(x) that decrease to zero when x \ufffd , the following assumption is normally adopted : \ufffd \ufffdp q px x q p , ( ) ( )\ufffd 2 22 (3) The scale factor of 2-pq is called the localization or dyatic translation and k is the translation index as- sociated with the localization, where p and q \ufffd \ufffd (Meyer, 1982) proved that wavelet thus defined are orthogonal, i.e., \ufffd \ufffd \ufffd \ufffdp q l m p l q m, , , ,\ufffd \ufffd for p q l m Z, , \ufffd \ufffdwhere is equal to the scalar product and \ufffd refer to the delta function of Dirac. Extending the idea to space for \ufffd integrable square functions, the following is defined : \ufffd \ufffda b a t b a a b R a, , , ,\ufffd \ufffd \ufffd \ufffd\ufffd \ufffd \ufffd \ufffd\ufffd \ufffd \ufffd 1 0 (2) The function \ufffd is called a mother wavelet, where a is the scale factor and b is the translation parameter.", "mime": "application/pdf"}, {"id": "esrj-21199", "words": "4114", "extension": ".pdf", "flesch": "60", "author": "Imhof, Luis Armando; Santamarina, Juan Carlos", "title": "SEISMIC VELOCITY DETERMINATION IN GRAVEL AND SANDS USING PIEZOCRYSTALS", "date": "2008", "keywords": "2-#8; figure; frequency; sample; signal; velocity; waves; \ufffd \ufffd", "summary": "Consid- ering a velocity of propagation VP~140 m/s: wavelength Vp f m s s m mm\ufffd \ufffd \ufffd \ufffd \ufffd) 140 40001 0035 35 / / . Conclusions General purpose piezocrystals (disk cells) can be adapted for the construction of transducers to gener- ate and detect seismic P waves at laboratory scale us- ing soil samples (gravel and sands), in the range of frequencies that allows an appropriate balance be- tween resolution and penetration.", "mime": "application/pdf"}, {"id": "esrj-21200", "words": "5130", "extension": ".pdf", "flesch": "55", "author": "Batayneh, Awni T.", "title": "MAPPING SUBSURFACE FORMATIONS ON THE EASTERN RED SEA COAST IN JORDAN USING GEOELECTRICAL TECHNIQUES: GEOLOGICAL AND HYDROGEOLOGICAL IMPLICATIONS", "date": "2007", "keywords": "area; clay; curves; fig; jordan; layer; ohm; resistivity; sand; type; water", "summary": "Among the four types of curves, Type I and Type II curves show similar shape of field curves with layer resistivities decreasing with depth such that \u03c11>\u03c12>\u03c13. Based on the lithological log from the K3028 borehole, the geological interpretation of the geoelectrical model for VES 4 and VES 5 (Fig. 2) is: (i) a resistive layer (500-1700 ohm-m) with variable thickness and moisture content at the surface, which consists of a mixture of gravel, silt, and sand; (ii) a thick clay and clayish sand layer having resistivity values of 30 to 40 ohm-m; and (iii) a saturated sandy layer with saline water having resistivity values of 1 to 10 ohm-m. FIELD RESULTS ANALYSIS OF VES CURVES", "mime": "application/pdf"}, {"id": "esrj-21201", "words": "3575", "extension": ".pdf", "flesch": "62", "author": "Kamguia, J.; Tabod, C. T.; Tadjou, J. M.; Manguelle-Dicoum, E.; Nouayou, R.; Kande, L. H.", "title": "Accurate gravity anomaly interpolation: a case-study in Cameroon, Central Africa", "date": "2007", "keywords": "anomalies; anomaly; areas; bouguer; cameroon; data; gravity; interpolation; point; prediction", "summary": "Theoretically, Bouguer gravity anomalies are smoother and therefore suited for prediction processes than free-air anomalies. This paper presents the comparison of various prediction methods applied on different types of gravity anomalies and considering the relative geological complexity of the study area.", "mime": "application/pdf"}, {"id": "esrj-21202", "words": "4758", "extension": ".pdf", "flesch": "62", "author": "Pedraza Garcia, Patricia; Vargas, Carlos Alberto; Monsalve J, Hugo", "title": "GEOMETRIC MODEL OF THE NAZCA PLATE SUBDUCTION IN SOUTHWEST COLOMBIA", "date": "2007", "keywords": "colombia; depth; dip; ecuador; figure; nazca; plate; segment; subduction; trench; zone", "summary": "RESUMEN Se propone un modelo geom\u00e9trico de la subducci\u00f3n de la placa Nazca bajo la placa suramericana en el suroeste de Colombia, basado en la relocalizaci\u00f3n de hipocentros de sismos locales y telesismos. Sismotect\u00f3nica de Colombia: deformaci\u00f3n continental activa y subducci\u00f3n.", "mime": "application/pdf"}, {"id": "esrj-21203", "words": "6162", "extension": ".pdf", "flesch": "50", "author": "H. Gallardo, Adrian; Marui, Atsunao", "title": "Hydraulic characteristics of sedimentary deposits at the J-PARC proton-accelerator, Japan", "date": "2007", "keywords": "accelerator; conductivity; deposits; distribution; grain; hydraulic; japan; parc; porosity; properties; sediments; size; soil; water; wells", "summary": "Although not shown here, data collected from other wells indicated the lowest salinities occur in the upper 40 m below the ground, where alluvial deposits of higher hydraulic conductivity promote a rapid inflow of meteoric waters and the existence of a freshwater aquifer. On the other hand, hydraulic conductivity was measured by a number of parameters such as a log-normal distribution.", "mime": "application/pdf"}, {"id": "esrj-21204", "words": "2979", "extension": ".pdf", "flesch": "62", "author": "Greinwald, S.; Ortega, A.; Rugeles, A.; Ips, M., v. Seth", "title": "Self-potential signals caused by eruptions of the Galeras volcano \u2013 Colombia", "date": "2007", "keywords": "activity; component; galeras; july; seismic; signals; station", "summary": "Desde finales de 1998, la estaci\u00f3n del multiparam\u00e9trica del Galeras (EMG) incluye el monitoreamiento continuo de las variaciones electromagn\u00e9ticas. Since the end of 1998 the Multi-parameter Station at Galeras (Estaci\u00f3n Multipar\u00e1metro del Galeras \u2013 EMG) in- cludes the continuous monitoring of electromagnetic variations.", "mime": "application/pdf"}, {"id": "esrj-21205", "words": "2702", "extension": ".pdf", "flesch": "51", "author": "Alzate, Mauricio Orozco; Castellanos-Dom\u00ednguez, C\u00e9sar Germ\u00e1n", "title": "CLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO", "date": "2007", "keywords": "classification; clustering; data; dissimilarity; duin; ruiz", "summary": "Corresponding author: Mauricio Orozco-Alzate, email: morozcoa@unal.edu.co ABSTRACT Classification of seismic signals at Colombian volcanoes has been carried out manually by visual inspection. Automatic classification of seismic signals at Mt. Vesuvius volcano, Italy, using neural networks.", "mime": "application/pdf"}, {"id": "esrj-21206", "words": "2973", "extension": ".pdf", "flesch": "37", "author": "Vargas J., Carlos A.; Zamora R, Armando; Pardo, Andres", "title": "GEOINFORMATION DENSITY: A criterion on ANH Block Negotiation", "date": "2007", "keywords": "anh; block; data; density; distribution; figure; information; negotiation", "summary": "METHODOLOGICAL ASPECTS Based on the general information included within the ANH Exploration and Production Information Service - EPIS such as longitude and location of several seismic programs, gravimetric, magnetometric, and geochemical location coverage along with well distribution performed during the exploratory history of Colombia, information distribution densities have been determined from territory area discretization (e.g., 25km x 25km). Cumulative probability curves for seismic density information fitted to typical normal and exponential distribution curves.", "mime": "application/pdf"}, {"id": "esrj-21207", "words": "4110", "extension": ".pdf", "flesch": "52", "author": "Srivastava, Naveenchandra N.; Rathod, Brijesh G.; Solanki, Ajay M.; Machhar, Suresh P.; Patel, Vivek R.; Dasgupta, A. R.", "title": "CROSS-SECTION GENERATION OF VARIOUS GEO-SCIENTIFIC FEATURES WITHOUT CONTOUR DIGITIZATION USING A VISUAL C++ BASED SOFTWARE APPLICATION \u2018VIGAT 2005\u2019", "date": "2007", "keywords": "c++; contour; cross; figure; geological; line; map; maps; profile; section; software; vigat; visual", "summary": "Contrary to \u2018Vigat 2005\u2019, creating and plotting cross section profiles in Geographic Information Systems (GIS) requires the following steps: Creating a Digital Elevation Model. It shows various steps like loading (open and display) image file in bmp file format, drawing section lines, entering contour values, submission of contour values, and display of cross sections.", "mime": "application/pdf"}, {"id": "esrj-21208", "words": "2525", "extension": ".pdf", "flesch": "55", "author": "Piedrahita, Carlos; Monta\u00f1a, Clara L.", "title": "METHODOLOGY IMPLEMENTED FOR THE 3D-SEISMIC MODELLING USING GOCAD AND NORSAR 3D SOFTWARE APPLIED TO COMPLEX AREAS IN THE LLANOS FOOTHILLS", "date": "2007", "keywords": "data; figure; gocad; methodology; modeling; norsar; software", "summary": "CONCLUSIONS Seismic modeling using the methodology described is an excellent tool for the validation of the 2D or 3D seismic designs and it is adequate to use it on complex areas, as the Colombian Llanos foothills. ABSTRACT A methodology has been applied in order to use seismic modeling and generate synthetic data which are compared with results from field data.", "mime": "application/pdf"}, {"id": "esrj-21209", "words": "2422", "extension": ".pdf", "flesch": "42", "author": "Kazmierczak1, Thais de Souza; Castillo, Luis A.; Chemale Jr, Farid; de Souza, S\u00e9rgio Flor\u00eancio; G\u00f3mez Londo\u00f1o, Ernesto", "title": "THE CAMAQU\u00c3 BASIN MODELLING : TECTONOSTRATIGRAPHY THROUGH INTEGRATION OF GEOPHYSICAL (GRAVIMETRY, WELL LOG) AND REMOTE SENSING DATA", "date": "2007", "keywords": "basin; camaqu\u00e3; deformational; figure; lineaments; log; sensing; sequences", "summary": "Es presentado un modelo esquem\u00e1tico 3D de la Cuenca de Camaqu\u00e3 basado en la geof\u00edsica de pozos e im\u00e1genes de sat\u00e9lite, integrados al modelo digital del terreno. Key words: Camaqu\u00e3 Basin, Geophysics, Remote Sensing, Lithostratigraphy, Well Logs RESUMEN A continuaci\u00f3n es presentado un an\u00e1lisis tectonoestratigr\u00e1fico de la Cuenca Camaqu\u00e3.", "mime": "application/pdf"}, {"id": "esrj-21210", "words": "5734", "extension": ".pdf", "flesch": "57", "author": "Khaksar, Keyvan; Moghadam, Iraj Maghfouri", "title": "PALEONTOLOGICAL STUDY OF THE ECHINODERMS IN THE QOM FORMATION (CENTRAL IRAN)", "date": "2007", "keywords": "burdigalian; central; clypeaster; cotteau; des; distribution; echinoderms; formation; genus; iran; material; member; miocene; oligocene; pages; qom; samples; sea; study; view; vol", "summary": "CONCLUSIONS Firstly, the presence of Echinoderms in the Qom Formation reveals a passage to the sea. Pliocene sequences of Qom formation have various facies.", "mime": "application/pdf"}, {"id": "esrj-21211", "words": "4897", "extension": ".pdf", "flesch": "52", "author": "Hernandez-Pardo, Orlando; B. von Frese, Ralph R.; Woo Kim, Jeong", "title": "CRUSTAL THICKNESS VARIATIONS AND SEISMICITY OF NORTHWESTERN SOUTH AMERICA", "date": "2007", "keywords": "andes; anomalies; catalog; crustal; earthquakes; figure; gravity; plate; south; thickness; variations; zones", "summary": "Hern\u00e1ndez et al., ESRJ Vol. 11, No. 1. June 2007 94 from terrain and gravity anomalies of northwestern South America help to differentiate probable earthquake zones. Inversely transforming positively and negatively correlated free-air wavenumber components according to the selected cut off values yielded the terrain- correlated free air gravity anomalies (TCFAGA).", "mime": "application/pdf"}, {"id": "esrj-21212", "words": "2965", "extension": ".pdf", "flesch": "42", "author": "Orozco, Mauricio; Garc\u00eda, Marcelo E.; P.W. Duin, Robert; G. Castellanos, C\u00e9sar", "title": "DISSIMILARITY-BASED CLASSIFICATION OF SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO", "date": "2006", "keywords": "classification; classifiers; dissimilarity; duin; problem; representations; ruiz; signals", "summary": "Linear and Quadratic normal density based classifiers Previous studies (P\u0119kalska et al, 2001; P\u0119kalska and Duin, 2002; Pacl\u00edk and Duin, 2003) have shown that Bayesian (normal density-based) classifiers, particularly the linear (LDC) and quadratic (QDC) normal based classifiers, perform well in dissimilarity spaces. Dissimilarity representations were constructed by calculating pairwise Euclidean distances and a non-Euclidean measure on the normalized spectra, which is based on the difference in area between spectral curves.", "mime": "application/pdf"}, {"id": "esrj-21213", "words": "7972", "extension": ".pdf", "flesch": "60", "author": "G\u00f3mez C., Augusto A.", "title": "SEISMIC HAZARD MAP FOR THE ITALIAN TERRITORY USING MACROSEISMIC DATA", "date": "2006", "keywords": "attenuation; data; distance; distribution; earthquakes; figure; hazard; idp; intensity; italy; macroseismic; map; model; relationships", "summary": "Lateral variations of seismic intensity attenuation in Italy. The attenuation of seismic intensity in the Etna region and comparison with other Italian volcanic districts.", "mime": "application/pdf"}, {"id": "esrj-21214", "words": "2639", "extension": ".pdf", "flesch": "56", "author": "Montes V., Luis A.; C\u00e1rdenas Contreras, Andr\u00e9s", "title": "STACKING ON COMMON REFLECTION SURFACE WITH MULTIPARAMETER TRAVELTIME", "date": "2006", "keywords": "crs; data; figure; parameters; reflection; section; stacking; surface; traveltime", "summary": "Model for an arbitrary reflector and CRS parameters 92 . This step is performed applying the move-out formula expressed in the multiparameter traveltime of the equation 1, providing a better ZO section of CRS parameters during the coherence analysis of the multiple shots and receivers data.", "mime": "application/pdf"}, {"id": "esrj-21215", "words": "4205", "extension": ".pdf", "flesch": "57", "author": "L\u00f3pez K, Jes\u00fas M.; Moreira, Jes\u00fas; Gandarillas, Jos\u00e9", "title": "GEOLOGY OF THE FLORENCIA GOLD \u2013 TELLURIDE DEPOSIT (CAMAG\u00dcEY, CUBA) AND SOME METALLURGICAL CONSIDERATIONS", "date": "2006", "keywords": "camag\u00fcey; cuba; deposit; florencia; gold; mineral; silver; south; telluride", "summary": "The principle aim of this study was to determine the mineral assemblage of gold ore deposits and the way in which precious gold and silver elements occur. Valuable information is provided for the exploration, mining and processing of gold ores from other nearby deposits with similar characteristics.", "mime": "application/pdf"}, {"id": "esrj-21216", "words": "3519", "extension": ".pdf", "flesch": "63", "author": "Alvarez, Gabriel; Biondi, Biondo; Guitton, Antoine", "title": "ATTENUATION OF DIFFRACTED MULTIPLES WITH AN APEX-SHIFTED TANGENT-SQUARED RADON TRANSFORM IN IMAGE SPACE", "date": "2006", "keywords": "apex; figure; multiples; radon; space; transform", "summary": "Simple ray tracing modeling shows that out- of-plane multiples map into events with shifted apexes such as 2D diffracted multiples, and different reflection azimuth than the primaries. antoine@sep.stanford.edu ABSTRACT In this paper, we propose a method to attenuate diffracted multiples with an apex-shifted tangent- squared Radon transform in angle domain common image gathers (ADCIG) .", "mime": "application/pdf"}, {"id": "esrj-21217", "words": "5892", "extension": ".pdf", "flesch": "56", "author": "Hern\u00e1ndez P, Orlando; B. von Frese, Ralph R.", "title": "ISOSTATICALLY DISTURBED TERRAIN OF NORTHWESTERN ANDES MOUNTAINS FROM SPECTRALLY CORRELATED FREE-AIR AND GRAVITY TERRAIN DATA", "date": "2006", "keywords": "air; andes; anomalies; data; fctge; figure; frese; gravity; mountains; plate; tcfaga; terrain; tge; von", "summary": "New insights on the isostatic state and plate boundaries of the northwestern Andes Mountains can be obtained from the spectral analysis of recently available gravity and topography data. Spectral correlation of the terrain gravity effects (TGE) and free-air gravity anomalies (FAGA) suggested that the Andes Mountains are isostatically disturbed with an anomalous underlying crust-mantle interface (MOHO).", "mime": "application/pdf"}, {"id": "esrj-21218", "words": "3429", "extension": ".pdf", "flesch": "57", "author": "P\u00e9rez, Gabriel; Marfurt, Kurt", "title": "IMPROVING VERTICAL AND LATERAL RESOLUTION BY STRETCH-FREE, HORIZON-ORIENTED IMAGING", "date": "2006", "keywords": "data; horizon; migration; offset; stretch; target", "summary": "In the interest of maximi- zing the science with a reasonable computational effort, pre-stack time migration has been used as the preferred imaging method. The central sample is migra- ted to the \u201cexact\u201d position in the output and, for time migration; surrounding samples are migra- ted to positions in which the difference in time with respect to the central migrated sample are preserved.", "mime": "application/pdf"}, {"id": "esrj-21222", "words": "4684", "extension": ".pdf", "flesch": "64", "author": "Tavera, Hernando; Vilca, Renzo; Mar\u00edn, Gloria", "title": "INFERENCES ON THE GEOMETRY OF THE NAZCA PLATE IN NORTHWESTERN PER\u00da BASED ON DATA COLLECTED BY A LOCAL SEISMOGRAPH NETWORK", "date": "2006", "keywords": "data; depth; earthquakes; figure; geometry; local; nazca; network; per\u00fa; plate; tavera", "summary": "The focal mechanisms for intermediate depth earthquakes beneath the local seismograph network suggest the development of complex deformation processes that could be attributed to small fracturing caused by stresses induced by the flexure of the subducting plate or alternatively dehydration processes. Double seismic zones and stress of intermediate depth earthquakes, Geophys.", "mime": "application/pdf"}, {"id": "esrj-21226", "words": "4620", "extension": ".pdf", "flesch": "59", "author": "Eppelbaum, L.V.; Kutasov, I.M.; Barak, G.", "title": "GROUND SURFACE TEMPERATURE HISTORIES INFERRED FROM 15 BOREHOLES TEMPERATURE PROFILES: COMPARISON OF TWO APPROACHES", "date": "2006", "keywords": "borehole; change; ground; gsth; model; profiles; surface; table; temperature; warming", "summary": "Deriving century \u2013 long trends of surface temperature change from borehole temperatures, Geophysical Research Letters, 23, 257-260. \u2022 The problem of inverting borehole temperatures to yield a ground surface temperature (GST) is an ill-posed problem, and some constraints are required for a stable solution.", "mime": "application/pdf"}, {"id": "esrj-21228", "words": "3376", "extension": ".pdf", "flesch": "50", "author": "Lushnikov, Sergey V.; Frank, Yulia A.; Vorobyov, Danil S.", "title": "OIL DECONTAMINATION OF BOTTOM SEDIMENTS EXPERIMENTAL WORK RESULTS", "date": "2006", "keywords": "decontamination; lake; oil; russian; schuchye; sediments; surface; water; work", "summary": "OIL DECONTAMINATION OF BOTTOM SEDIMENTS EXPERIMENTAL WORK RESULTS Sergey V. Lushnikov1, Yulia A. Frank1 and Danil S. Vorobyov2 1 Research and Technical Association \u201cPRIBORSERVICE\u201d Ltd., Komsomolsky Av., 70, Tomsk, Russia, 634041 2 Tomsk State University, Lenina Av., 36, Tomsk, Russia, 634050 Corresponding Author: Sergey V. Lushnikov, e-mail: pribor@mail.tomsknet.ru ABSTRACT This article presents the results of experimental work during 2004-2005 on oil decontamination of bottom sediments of Lake Schuchye, situated in the Komi Republic (Northern Russia). Determination of the necessary decontamination level of bottom sediments of the reservoir, after which mechanisms of natural self-purification start actively working, is very important for a wide appli- cation of flotation technology to oil decontamination of water bodies.", "mime": "application/pdf"}, {"id": "esrj-21229", "words": "4604", "extension": ".pdf", "flesch": "56", "author": "Alfaro Castillo, Andr\u00e9s Jos\u00e9", "title": "APPLICATION OF A HEURISTIC METHOD FOR THE ESTIMATION OF S-WAVE VELOCITY STRUCTURE", "date": "2006", "keywords": "annealing; array; data; figure; inversion; method; microtremors; model; structure; velocity; wave", "summary": "42 Andr\u00e9s Jos\u00e9 Alfaro Castillo En este estudio se desplegaron siete arreglos para microtemblores en la ciudad de Tsukuba (Jap\u00f3n), ubicada en la parte Nororiental de la cuenca de Kanto, con el fin de determinar la estructura profunda de velocidad de las ondas S. Para determinar las curvas de dispersi\u00f3n de velocidad de fase en el rango de frecuencias 0.3-2.5 Hz se utiliz\u00f3 el m\u00e9todo de la autocorrelaci\u00f3n espacial SPAC. Adicionalmente, en algunas cuencas, es importante conocer la estructura de los sedimentos profundos, debido al fen\u00f3meno de amplificaci\u00f3n de ondas de baja frecuencia.", "mime": "application/pdf"}, {"id": "esrj-21233", "words": "4191", "extension": ".pdf", "flesch": "52", "author": "Lednick\u00e1, Mark\u00e9ta; Lu\u0148\u00e1\u010dkov\u00e1, Barbara; Kal\u00e1b, Zden\u011bk; Hrube\u0161ov\u00e1, Eva; Ko\u0159\u00ednek, Robert", "title": "CONTRIBUTION TO EVALUATION OF TECHNICAL SEISMICITY EFFECT ON BUILDINGS - CASE STUDY", "date": "2006", "keywords": "buildings; loading; povrchov \ufffd; seismicity; structures; study \ufffd; vod \ufffd; \ufffd ch; \ufffd figure; \ufffd places; \ufffd \ufffd", "summary": "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd Figure 2. \u00a9 2006 ESRJ - Unibiblos 9 Contribution to evaluation of technical seismicity effect on buildings - Case study \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd Three input themes will be included into our methodology for elaboration of maps of clashes of opinions in the topic presented here \u2013 seismic loading of buildings and structures in a given region: 1) selected region, 2) seismic loadings, and 3) building objects.", "mime": "application/pdf"}, {"id": "esrj-21235", "words": "4547", "extension": ".pdf", "flesch": "43", "author": "Jaramillo Giraldo, Erika Cristina; Vega Manchola, Ximena; Monsalve Jaramillo, Hugo", "title": "APPLICATION OF GRAVIMETRY AND ELECTRIC TOMOGRAPHY METHODS TO OBTAIN STRATIGRAFIC PROFILES: CASE STUDY AT UNIVERSITY OF QUIND\u00cdO AND PUERTO ESPEJO AREA, ARMENIA-COLOMBIA", "date": "2005", "keywords": "area; electric; espejo; figure; humidity; layers; profiles; puerto; quind\u00edo; resistivity; university; values", "summary": "Los resultados obtenidos son presentados en perfiles el\u00e9ctricos y gravim\u00e9tricos en Puerto Espejo y la Universidad del Quind\u00edo, los cuales fueron \u00fatiles como par\u00e1metros de calibraci\u00f3n de los rangos de resistividad y gravimetr\u00eda para los tipos de suelos encontrados en estas \u00e1reas de Colombia, dependiendo tambi\u00e9n de los factores de humedad y temperatura. Un modelo del Cuaternario del Quind\u00edo y Risaralda.", "mime": "application/pdf"}, {"id": "esrj-21236", "words": "5509", "extension": ".pdf", "flesch": "49", "author": "Monsalve Jaramillo, Hugo; Correa Monta\u00f1o, Isabel Cristina; Valencia, Mina William", "title": "SEISMOLOGICAL OBSERVATORY AT QUINDIO UNIVERSITY (O.S.Q.): A FIRM LONG-TERM STEP TOWARD RESOLVING REGIONAL SEISMICITY", "date": "2005", "keywords": "armenia; coffee; earthquakes; events; local; magnitude; model; monsalve; observatory; quind\u00edo; region; seismicity; university", "summary": "Number of local earthquakes registered by the OSQ, from 1999 to August 2005. la registrada antes de la ocurrencia de los sismos mas importantes de los \u00faltimos 42 a\u00f1os.", "mime": "application/pdf"}, {"id": "esrj-21237", "words": "3878", "extension": ".pdf", "flesch": "49", "author": "Vargas, Carlos A.; Kammer, Andreas; Valdes, Mireya; Rodr\u00edguez, Carlos E.; Caneva, Alexander; S\u00e1nchez, Jhon J.; Arias, Eliana; Cortes, Carlos A.; Mora, H\u00e9ctor", "title": "NEW GEOLOGICAL AND GEOPHYSICAL CONTRIBUTIONS IN THE SECTION IBAGU\u00c9 \u2013 ARMENIA, CENTRAL CORDILLERA - COLOMBIA", "date": "2005", "keywords": "armenia; cajamarca; carlos; central; colombia; complex; cordillera; fault; figure; ibagu\u00e9; rocks; section", "summary": "CARLOSVARGASET AL.indd 99 NEW GEOLOGICAL AND GEOPHYSICAL CONTRIBUTIONS IN THE SECTION IBAGU\u00c9 \u2013 ARMENIA, CENTRAL CORDILLERA - COLOMBIA Carlos A. Vargas1, Andreas Kammer1, Mireya Valdes2, Carlos E. Rodr\u00edguez1, Alexander Caneva3, Jhon J. S\u00e1nchez4, Eliana Arias5, Carlos A. Cortes6, H\u00e9ctor Mora4 1 Departamento de Geociencias, Universidad Nacional de Colombia \u2013 Sede Bogot\u00e1 , Colombia Email: cavargasj@unal.edu.co 2 Instituto Colombiano del Petroleo \u2013ICP, Bucaramanga, Colombia 3 Universidad Antonio Nari\u00f1o, Direcci\u00f3n Nacional de Investigaciones, Bogot\u00e1, Colombia 4 Red Sismol\u00f3gica Nacional de Colombia, INGEOMINAS, Bogot\u00e1, Colombia 5 Incorporated Research Institutions for Seismology \u2013 IRIS, Washington DC, USA 6 Universidad de Manizales, Facultad de Ingenier\u00eda, Manizales -Colombia RESUMEN Ha sido interpretada la secci\u00f3n geol\u00f3gica entre las ciudades de Ibagu\u00e9 y Armenia basada en observaciones geof\u00edsicas y estructurales en busca de establecer el estilo estructural dominante y la configuraci\u00f3n del basamento en profundidad. Thanks to professors L. H. Ochoa, L. Castillo, L.A. Montes and L.A Ordo\u00f1ez and their students of the gradu- ate programs of Geophysics and Geotechnics and the undergraduate programs of Geology and Civil Engineering of Universidad Nacional de Colombia.", "mime": "application/pdf"}, {"id": "esrj-21239", "words": "4433", "extension": ".pdf", "flesch": "58", "author": "Karlin, Lev; Villegas, Nancy", "title": "SIMULATION OF NEAR-SURFACE LAYER OF THE COLOMBIAN PACIFIC OCEAN", "date": "2005", "keywords": "hours; layer; nsl; station; thickness; time; wind", "summary": "Mixed layer thickness with night convection regime is deepened (in average) in 15 m, with Tw change from 27,3 to 26.9\u00b0C. NSL characteristics evolution of CPO Station 111: night convection and sunny and weak wind weather regimes Simulation results of sunny and weak wind weather regimes, have a high differences from others regimes and preserve natural data behavior.", "mime": "application/pdf"}, {"id": "esrj-21240", "words": "3206", "extension": ".pdf", "flesch": "53", "author": "Bakkali, Saad", "title": "ANALYSIS OF PHOSPHATE DEPOSIT \u201cDISTURBANCES\u201d USING THE HORIZONTAL-GRADIENT RESPONSES OF RESISTIVITY DATA (OULAD ABDOUN, MOROCCO)", "date": "2005", "keywords": "deposit; depth; disturbances; figure; gradient; horizontal; map; phosphate; resistivity; rock", "summary": "High values of apparent resistivity were encountered due to the presence of near-vertical faulting between areas of contrasting resistivity, and fault zones which may contain more or less highly conducting fault gouge. A map of apparent resistivity anomalies of the area of study.", "mime": "application/pdf"}, {"id": "esrj-21241", "words": "2470", "extension": ".pdf", "flesch": "53", "author": "Bravo Ni\u00f1o, Claudia Lily; Montes Vides, Luis Alfredo", "title": "WAVE EQUATION DATUMING TO CORRECT TOPOGRAPHY EFFECT ON FOOTHILL SEISMIC DATA", "date": "2005", "keywords": "data; datum; equation; figure; seismic; shot; topography; wave", "summary": "Recently effects of topography in foothill data have been studied (Malaver et al., 2005; Montes et al 2003) and new approaches have been proposed to increase quality in seismic data recorded in these regions (Montes et al. 2005). The shots were upward continued to a rough surface through WED, simulating seismic data recorded in foothill zones, one of these synthetic shots is Figure 4.", "mime": "application/pdf"}, {"id": "esrj-21247", "words": "2830", "extension": ".pdf", "flesch": "58", "author": "G\u00f3mez Londo\u00f1o, Ernesto; Castillo L\u00f3pez, Lu\u00eds; Kazmierczak, Tha\u00eds de Souza", "title": "USING THE KARHUNEN-LO\u00c8VE TRANSFORM TO SUPPRESS GROUND ROLL IN SEISMIC DATA", "date": "2005", "keywords": "amplitude; data; figure; filter; gather; ground; roll; transform", "summary": "The conventional filtering techniques: f-k, High-Pass and BandPass are applied in the frequency domain but in the case of Ground Roll amplitude stronger than reflection signals, f-k filters cause serious distortion of the signal (Karsh and Bayrak, 2004). e-mail: luis.castillo@ufrgs.br; e-mail: thais.kazmierczak@ufrgs.br RESUMEN En este estudio se implement\u00f3 y modific\u00f3 el Algoritmo de Sacchi (2002), basado en la Transformada Karhunen-Lo\u00e8ve (K-L), como una t\u00e9cnica para la supresi\u00f3n de Ground Roll, mostrando que aunque", "mime": "application/pdf"}, {"id": "esrj-21248", "words": "5277", "extension": ".pdf", "flesch": "51", "author": "Pardo Villaveces, Natalia; Jaramillo, Jos\u00e9 Mar\u00eda; Cepeda, H\u00e9ctor", "title": "THE PAIPA VOLCANO, EASTERN CORDILLERA OF COLOMBIA, SOUTH AMERICA (PART II): PETROGRAPHY AND MAJOR ELEMENTS PETROLOGY", "date": "2005", "keywords": "anorthoclase; cepeda; colombia; cordillera; crystals; figure; flow; fragments; paipa; pardo; pumice; rocks; unit; villaveces; volcano", "summary": "En correlaci\u00f3n con datos publicados sobre las rocas volc\u00e1nicas de Iza, la geoqu\u00edmica de elementos mayors de las rocas volc\u00e1nicas de Paipa indican que los magmas alcalinos y \u00e1cidos que hicieron erupci\u00f3n en la Cordillera Oriental de Colombia durante el Ne\u00f3geno son distintos a los magmas calcoalcalinos que hacen actualmente erupci\u00f3n en el arco activo de la Cordillera Central de Colombia. Figure 7. A. TAS chemical composition of Paipa volcano rocks.", "mime": "application/pdf"}, {"id": "esrj-21254", "words": "4191", "extension": ".pdf", "flesch": "62", "author": "Caneva, Alexander; Smirnov, Vladimir", "title": "USING THE FRACTAL DIMENSION OF EARTHQUAKE DISTRIBUTIONS AND THE SLOPE OF THE RECURRENCE CURVE TO FORECAST EARTHQUAKES IN COLOMBIA", "date": "2004", "keywords": "colombia; earthquakes; events; fractal; recurrence; region; seismicity; time; value", "summary": "This difference describes the deviation of the geophysical medium from a \u201cstable\u201d state for intervals of time in which strong earthquakes occur. The symbol indicates strongest earthquakes.", "mime": "application/pdf"}, {"id": "esrj-21255", "words": "5087", "extension": ".pdf", "flesch": "62", "author": "G\u00f3mez Capera, Augusto A.; Leschiutta, Ilaria", "title": "DETERMINING THE PARAMETERS OF EARTHQUAKE SOURCES IN SOUTH AMERICA FROM MACROSEISMIC INTENSITY DATA (CERESIS DATABASE)", "date": "2004", "keywords": "boxer; ceresis; data; database; earthquake; figure; idp; intensity; parameters; source; south; table", "summary": "Key words: Earthquake source parameters, intensity data points, parameterization techniques, South America. Audemard, F. (1997): Holocene and historical earthquakes on the Bocon\u00f3 fault system, southern Venezuelan Andes: trench confirmation.", "mime": "application/pdf"}, {"id": "esrj-21257", "words": "3167", "extension": ".pdf", "flesch": "62", "author": "Moncayo, \u00c9dgar; Vargas, Carlos; Dur\u00e1n, Juan", "title": "TEMPORAL VARIATION OF CODA-Q AT GALERAS VOLCANO, COLOMBIA", "date": "2004", "keywords": "changes; coda; colombia; eruption; galeras; volcano", "summary": "The temporal variations of Q -1 value obtained by the SBS model show clear tendencies that follow the changes in volcanic activity. Changes in Q -1 values before and after some eruptions.", "mime": "application/pdf"}, {"id": "esrj-21258", "words": "4622", "extension": ".pdf", "flesch": "53", "author": "Trenkamp, Robert; Mora P, H\u00e9ctor; Salcedo H, Elkin; Kellogg, James N.", "title": "POSSIBLE RAPID STRAIN ACCUMULATION RATES NEAR CALI, COLOMBIA, DETERMINED FROM GPS MEASUREMENTS (1996-2003)", "date": "2004", "keywords": "analysis; cali; cauca; colombia; data; del; earthquakes; gps; measurements; rates; south; strain", "summary": "El NAB est\u00e1 delineado por el sistema andino de fallas Bocono y el gran corte de Dolores, Guayaquil al este; el cintur\u00f3n del Caribe sur; el corte de Colombia Ecuador, al norte, y Panam\u00e1, al oeste. Sin embargo hist\u00f3ricamente muchos terremotos est\u00e1n asociados a la \u201cfalla Cauca Almaguer\u201d en localidades cerca al sur y al norte de Cali en el valle del Cauca.", "mime": "application/pdf"}, {"id": "esrj-21259", "words": "7242", "extension": ".pdf", "flesch": "59", "author": "S\u00e1nchez, John J.; McNutt, Stephen R.", "title": "UNEXPECTED RESPONSE OF MT. WRANGELL VOLCANO, ALASKA, TO THE SHAKING FROM A LARGE REGIONAL EARTHQUAKE: A PUZZLE FOR INTERMEDIATE-TERM EARTHQUAKE-VOLCANOES INTERACTIONS", "date": "2004", "keywords": "change; data; decrease; dfe; earthquakes; figure; rates; seismicity; time; values; wrangell; z values", "summary": "43 some step-wise changes in earthquake rates at the volcano. We investigated the sensitivity of the z values versus time curve to the presence of abrupt changes in seismicity rates by computing the z values of several synthetic data sets with varying amounts of change (decreases) in the number of earthquakes per unit time.", "mime": "application/pdf"}, {"id": "esrj-21260", "words": "3334", "extension": ".pdf", "flesch": "57", "author": "Villegas, Nancy", "title": "FINE THERMOHALINE STRUCTURE OF THE COLOMBIAN PACIFIC OCEAN", "date": "2004", "keywords": "colombian; ocean; pacific; sf sf; stability; structure; temperature; vertical", "summary": "MAY 2000 Numbers of station and type of stability Layers, m 1 5 14 17 29 33 42 43 47 49 79 81 107 111 114 0-10 LC AS AS AI AS LC AI AS AS SF AS SF SF AS AI 10-25 AS LC AS AS AS AS AS AS AS AS AS AS AS AS AS 25-50 AS AS AS AS AS AS AS AS AS AS SF SF AS AS SF 50-75 AS AS AS SF AS AS AS AS AS AS AS AS AS AS AS 75-100 AS AS AS AS AS SF SF AS SF SF SF SF AS SF AS 100-150 AS AS AS AS AS AS AS AS SF AS AS SF SF AS SF 150-200 AS SF AS SF SF SF AS SF SF AS SF AS SF SF AS 200-300 SF SF SF AS SF SF SF SF SF SF SF SF SF SF SF 300-400 \u2013 SF SF SF SF SF SF SF SF SF \u2013 SF SF SF SF 400-500 \u2013 SF SF \u2013 \u2013 SF AS SF \u2013 SF \u2013 AS SF SF SF 500-600 \u2013 \u2013 \u2013 \u2013 \u2013 \u2013 \u2013 \u2013 \u2013 SF \u2013 \u2013 SF \u2013 SF CONCLUSIONS Layers with predominance of different mechanisms of fine structure were determined. In shift instability of currents and internal waves, turbulence and elements of fine structure of hydrophysical fields arise under action of strong hydrodynamical instability in zones with high vertical gradients of speed current, like located areas observed as separate turbulent spots (Benilov, 1985, Maderich and Nikishev, 1986).", "mime": "application/pdf"}, {"id": "esrj-21261", "words": "1728", "extension": ".pdf", "flesch": "34", "author": "Riascos, Pedro; Racines, Andres; Caicedo, Jhon; Mejia, Jorge; Meyer, Hans", "title": "OSSODAS, A PORTABLE DIGITAL SYSTEM FOR SEISMOLOGICAL SIGNAL ACQUISITION", "date": "2004", "keywords": "acquisition; data; digital; linux; ossodas; signal; system", "summary": "In brief, we n for seismological esents significant and countries with thquake monitoring, in acquiring, and al systems. System description The digital acquisition system has been provided with six analog input channels available for instrumentation, which can be connected to two sensors (i.e., a tri-axial seismometer or 3- components accelerometer).", "mime": "application/pdf"}, {"id": "esrj-21262", "words": "2402", "extension": ".pdf", "flesch": "59", "author": "Rodr\u00edguez, \u00d3scar; Obando, Milton; Castillo, Luis; Cepeda, H\u00e9ctor", "title": "PYROCLASTIC FLOW MODELING TO RECONSTRUCT A VOLCANIC EDIFICE IN PAIPA (BOYAC\u00c1-COLOMBIA).", "date": "2004", "keywords": "alto; colombia; deposits; figure; flows; model; paipa; pyroclastic; sheridan; volcanic", "summary": "Pyroclastic flow deposits were mapped and detailed to reconstruct a volcanic edifice generated during the resurgence. DISCUSSION AND CONCLUSIONS It was found that the altitude of the volcanic build was 3100 m.o.s.l., and the friction coefficient a0 is 0.18, value coherent with observations made in other sites with pyroclastic flow deposits generated by dome collapse (figures 7\u00b4s and 8).", "mime": "application/pdf"}, {"id": "esrj-21263", "words": "1789", "extension": ".pdf", "flesch": "56", "author": "Piedrahita, Carlos; Piedrahita, Carlos; Salinas, Trino; Altamar, Hernando; Pachano, Karen", "title": "SLOWNESS SURFACE CALCULATION FOR DIFFERENT MEDIA USING THE SYMBOLIC MATHEMATICS LANGUAGE MAPLE\u00ae", "date": "2004", "keywords": "dir_l; matrix; slowness", "summary": "Stiffness matrix for sandstone (Thomsen, 2000) CONCLUSIONS The theoretical study of anisotropic media is important for studying the effect of different type of media on wave propagation. C[3,4]:=C34: C[3,5]:=C35: C[3,6]:=C36: C[4,4]:=C44: C[4,5]:=C45: C[4,6]:=C46: C[5,5]:=C55: C[5,6]:=C56: C[6,6]:=C66: evalm(C); Ray director cosines matrix > L:=Matrix(6,3): L[1,1]:=l[1]: L[2,2]:=l[2]: L[3,3]:=l[3]: L[4,2]:=l[3]: L[4,3]:=l[2]: L[5,1]:=l[3]: L[5,3]:=l[1]: L[6,1]:=l[2]: L[6,2]:=l[1]: evalm(L); Christoffel Matrix > GAMMA:=Transpose(L).C.L; Eigenvalues and Eigenvectors The elastic constants should be declared according to the chosen anisotropy case: consts:=C11=16.57*10^10,C12=6.39*10^10,C44 =7.956*10^10,rho=2332: (Cubic anisotropy) > consts:=C11=3.46E10,C13=1.07E10,C33 =2.84E10,C44=8.36E9,C66=1.26E10,rho=2500: (VTI elastic constants) >dir_l:=l[1]=sin(theta),l[2]=0,l[3]=cos(theta): >Ch:=CharacteristicMatrix(subs(dir_l,GAMMA), k); > d:=Determinant(Ch); > factor(d); > K:=[solve(d,k)]; > map(simplify,%,trig); > A:=subs(k=K[3],Ch); > A:=map(simplify,subs(k=K[3],Ch),trig); > solve({A[1,1]*u1+A[1,2]*u2=0},{u1}); > simplify(%,trig); > solve({A[2,1]*u1+A[2,2]*u2=0},{u1}); > simplify(%,trig); > Rank(A); > eg:=map(simplify,ColumnSpace(A)); > plot([subs(consts,dir_l,sqrt(rho/K[1])),subs(consts ,dir_l,sqrt(rho/K[2])),subs(consts,dir_l,sqrt(rho/K", "mime": "application/pdf"}, {"id": "esrj-27196", "words": "4850", "extension": ".pdf", "flesch": "51", "author": "Cardu, Marilena; Oreste, Pierpaolo", "title": "Tunnelling in urban areas by EPB machines: technical evaluation of the system", "date": "2011", "keywords": "energy; epb; excavation; figure; machine; progression; rock; rotation; speed; time; torque; total; tunnel; \ufffd \ufffd", "summary": "When \u00e7 and instantaneous progression speed are known, a machine\u2019s daily (24 hours) progression can be calculated as: v T v day total inst\ufffd \ufffd \ufffd \ufffd\ufffd 3 6. (13) where vday is daily advance rate (m/d), Ttotal is total working time (hours/day) and vinst is the net advance rate (mm/s). The evaluation was made by calculating excavation specific energies (during different excavation phases) to find a satisfactory correlation with the type of ground crossed.", "mime": "application/pdf"}, {"id": "esrj-27199", "words": "4850", "extension": ".pdf", "flesch": "51", "author": "Cardu, Marilena; Oreste, Pierpaolo", "title": "Tunnelling in urban areas by EPB machines: technical evaluation of the system", "date": "2011", "keywords": "energy; epb; excavation; figure; machine; progression; rock; rotation; speed; time; torque; total; tunnel; \ufffd \ufffd", "summary": "When \u00e7 and instantaneous progression speed are known, a machine\u2019s daily (24 hours) progression can be calculated as: v T v day total inst\ufffd \ufffd \ufffd \ufffd\ufffd 3 6. (13) where vday is daily advance rate (m/d), Ttotal is total working time (hours/day) and vinst is the net advance rate (mm/s). The evaluation was made by calculating excavation specific energies (during different excavation phases) to find a satisfactory correlation with the type of ground crossed.", "mime": "application/pdf"}, {"id": "esrj-27200", "words": "2967", "extension": ".pdf", "flesch": "49", "author": "Mandeep, JS; Zali, RM", "title": "Analysis and comparison model for measuring tropospheric scintillation intensity for Ku-band frequency in Malaysia", "date": "2011", "keywords": "data; distribution; log; model; prediction; scintillation; signal; \ufffd \ufffd", "summary": "Where, = standard deviation (dB) ref = reference standard deviation (dB) g(x) = antenna averaging factor and, ref wetN dB\ufffd \ufffd \ufffd \ufffd 3 6 10 103 4. ( ) (7) N e T wet \ufffd \ufffd3 732 10 5 2 . Comparing these four models showed that the Karasawa model was the best model for predicting scintillation data intensity, as shown in Figure 4 for scintillation signal fading (~26\u00b0C temperature (t) and 76% relative humidity, (RH)).", "mime": "application/pdf"}, {"id": "esrj-27201", "words": "2652", "extension": ".pdf", "flesch": "51", "author": "A, Akinmosin; O.C, Adeigbe; O.O., Oyemakinde", "title": "Scanning electron microscope description of the Afowo oil sand deposits in south-western Nigeria", "date": "2011", "keywords": "agosto; electron; julio; kaolinite; nigeria; oil; sand; scanning", "summary": "Ife Journal of Science, Vol 7, No 1, Akinmosin, A., Oredein, O.S. and Odewande, A. A. (2006): Sedimentological and reservoir description of Afowo oil sands deposits, southwestern Nigeria. Introduction Tar sands, also known as oil sands, consist of bitumen which is a soluble organic matter derived from crude oil degradation, either as seeps coming to the surface or within shallow subsurface reservoirs, and host sediment with associated minerals excluding natural gas.", "mime": "application/pdf"}, {"id": "esrj-27202", "words": "3873", "extension": ".pdf", "flesch": "48", "author": "J.S, Ojo; M. O, Olorunfemi; D. E, Falebita", "title": "An appraisal of the geologic structure beneath the Ikogosi warm spring in south-western Nigeria using integrated surface geophysical methods", "date": "2011", "keywords": "area; field; figure; julio; magnetic; nigeria; quartzite; resistivity; spring; \ufffd \ufffd", "summary": "The observed magnetic field data was corrected for diurnal variations and offset by subtracting base station regional magnetic field from magnetic field measurements taken along the traverse at synchronised times. Figure 3: Magnetic maps showing (a) the magnetic anomaly (nT) and (b) the horizontal gradient of the total field (nT/m).", "mime": "application/pdf"}, {"id": "esrj-27203", "words": "2820", "extension": ".pdf", "flesch": "49", "author": "Stephen O, Ariyo; Adetayo F, Folorunso; O.M, Ajibade", "title": "Geological and geophysical evaluation of the Ajana area\u2019s groundwater potential, southwestern Nigeria", "date": "2011", "keywords": "area; groundwater; layer; nigeria; resistivity; ves; \ufffd \ufffd", "summary": "AGOSTO 25-PORTADA GEOCIENCIAS-15-1 2011.prn D:\\GEOCIENCIAS JULIO 2011\\GEOCIENCIAS 15-1 JULIO 2011.vp jueves, 25 de agosto de 2011 11:28:18 p p p Composite 133 lpi at 45 degrees VES 3, 6, 8, 9 and 10 had good aquifer quality (layer resistivity and thickness), being favourable for groundwater exploitation based on the geoelectric layers so delineated. Geoelectric parameters The geoelectric layers derived from electrical sounding were described by two basic parameters \u2013 layers resistivity and thickness.", "mime": "application/pdf"}, {"id": "esrj-27204", "words": "2737", "extension": ".pdf", "flesch": "45", "author": "Ferreira de Oliveira, Emerson; Rangel, Caio C\u00e9sar; Sullivan de Jesus Alves, Diego; Silva Limonta, Filipi; Carvalho, Adelino; A. Candeiro, Carlos Roberto", "title": "Communication regarding the geology and vertebrate palaeontology of the Adamantina formation (Bauru group, Upper Cretaceous) in Campina Verde, Minas Gerais State, Brazil", "date": "2011", "keywords": "adamantina; bauru; campina; candeiro; formation; fossil; group; verde", "summary": "La ciudad de Campina Verde, localizada en esta zona, es donde la mayor\u00eda de los estudios se llevaron a cabo y es conocida como un campo de f\u00f3siles. Von Huene (1934) recovered fragmentary fossil sauropod dinosaur remains while conducting palaeontological reconnaissance in Campina Verde in 1910; Barcelos (1984) recognised the deposits in which they were found as being Adamantina formation (Fernandes and Coimbra).", "mime": "application/pdf"}, {"id": "esrj-27208", "words": "14067", "extension": ".pdf", "flesch": "58", "author": "Vargas, Carlos A.; Mann, Paul; Borrero, Carlos", "title": "Field guides for excursions to the Nevado del Ruiz Volcano and to the Romeral Fault System (Colombia), in the frame of the Neotectonics of arc-continent collision concepts", "date": "2011", "keywords": "agosto; arc; area; caldas; colombia; complex; del; et al; fault; figure; julio; nevado; nrv; panama; plate; ruiz; slab; south; stop; subduction; tear; volcanic; volcano; zone", "summary": "Eruption dynamics and petrology of the most recent eruptions of Nevado del Ruiz Colombia, South America, unpublished MSc. By 2003, the Nevado del Ruiz ice cap had lost as much as 52% of its area and roughly 30% of its volume (Thouret et al., 2007).", "mime": "application/pdf"}, {"id": "esrj-27296", "words": "3907", "extension": ".pdf", "flesch": "54", "author": "Imhof, Armando Luis; S\u00e1nchez, Manuel; Calvo, Carlos; Mart\u00edn, Adriana", "title": "Application of seismic refraction tomography for tunnel design in Santa Clara Mountain, San Juan, Argentina", "date": "2011", "keywords": "area; figure; geophysical; juan; methods; model; mountain; refraction; san; tomography; velocity; wave", "summary": "El prop\u00f3sito del estudio geof\u00edsico fue determinar las variaciones de velocidad de ondas P en el interior del macizo rocoso a fin de inferir grado de fracturaci\u00f3n y rigidez del mismo, donde a trav\u00e9s del cual se proyecta construir un t\u00fanel vial de 290 m de longitud, que atravesar\u00e1 la monta\u00f1a de forma casi perpendicular al eje de la misma, a 100 m de profundidad desde la cumbre. La metodolog\u00eda empleada con el nuevo sistema de generaci\u00f3n de ondas s\u00edsmicas, as\u00ed como la aplicaci\u00f3n en este tipo de estructuras geol\u00f3gicas de la SRT, demostraron la posibilidad de obtener resultados satisfactorios para este tipo de estudios geof\u00edsicos con fines geot\u00e9cnicos.", "mime": "application/pdf"}, {"id": "esrj-27298", "words": "3302", "extension": ".pdf", "flesch": "54", "author": "Brindha, K.; Elango, L.", "title": "Hydrochemical characteristics of groundwater for domestic and irrigation purposes in Madhuranthakam, Tamil Nadu, India", "date": "2011", "keywords": "area; groundwater; india; irrigation; purposes; quality; samples", "summary": "Comparison of groundwater samples with BIS and WHO standards. Figure 4 shows the plot of groundwater samples grouped on the above basis.", "mime": "application/pdf"}, {"id": "esrj-27300", "words": "3559", "extension": ".pdf", "flesch": "59", "author": "Carvajal, Eduar; Montes, Luis; Almanza, Ovidio A.", "title": "Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel", "date": "2011", "keywords": "age; dating; dose; electron; enamel; esr; radiation; resonance; sample; spin; tooth", "summary": "El esmalte dental fue irradiado con rayos gamma y los radicales libres producidos fueron medidos usando un espectr\u00f3metro de resonancia del spin electr\u00f3nico (ESR), banda X, con el fin de realizar una curva de intensidad de la se\u00f1al versus la dosis absor- bida por el esmalte. (1) Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 117", "mime": "application/pdf"}, {"id": "esrj-27301", "words": "3711", "extension": ".pdf", "flesch": "48", "author": "Casta\u00f1o, Kelyn Paola; Ojeda, Germ\u00e1n; Montes, Luis", "title": "Thin-layer detection using spectral inversion and a genetic algorithm", "date": "2011", "keywords": "barco; data; figure; inversion; layer; resolution; seismic; thickness; time", "summary": "Spectral inversion Due to the Widess model occurring in nature as the exception not the rule, spectral inversion is based on the fact that an impulse pair of reflec- tors can be decomposed in odd and even parts (Castagna, 2004; Chopra et al., 2006). Lower than seismic resolution sand and shale packages can be re- solved through spectral inversion and correlating them with stratigraphic information derived from well logs.", "mime": "application/pdf"}, {"id": "esrj-27302", "words": "3882", "extension": ".pdf", "flesch": "57", "author": "Torabi Kaveh, Mehdi; Heidari, Mojtaba", "title": "n engineering geological appraisal of the Chamshir dam foundation using DMR classification and kinematic analysis, southwest of Iran", "date": "2011", "keywords": "analysis; area; chamshir; classification; dam; dmr; engineering; foundation; left; mass; rock; site", "summary": "Analysis consisted of rock mass classification and a kine- matic analysis of the dam foundation\u2019s rock masses. Rock mass classifications were made in line with RMR and DMR classification for the dam foundation.", "mime": "application/pdf"}, {"id": "esrj-27440", "words": "3726", "extension": ".pdf", "flesch": "48", "author": "Casta\u00f1o, Kelyn Paola; Ojeda, Germ\u00e1n; Montes, Luis", "title": "Thin-layer detection using spectral inversion and a genetic algorithm", "date": "2011", "keywords": "barco; data; figure; inversion; layer; resolution; seismic; thickness; time", "summary": "Spectral inversion Due to the Widess model occurring in nature as the exception not the rule, spectral inversion is based on the fact that an impulse pair of reflec- tors can be decomposed in odd and even parts (Castagna, 2004; Chopra et al., 2006). Lower than seismic resolution sand and shale packages can be re- solved through spectral inversion and correlating them with stratigraphic information derived from well logs.", "mime": "application/pdf"}, {"id": "esrj-27711", "words": "3905", "extension": ".pdf", "flesch": "54", "author": "Imhof, Armando Luis; S\u00e1nchez, Manuel; Calvo, Carlos; Mart\u00edn, Adriana", "title": "Application of seismic refraction tomography for tunnel design in Santa Clara Mountain, San Juan, Argentina", "date": "2011", "keywords": "area; figure; geophysical; juan; methods; model; mountain; refraction; san; tomography; velocity; wave", "summary": "El prop\u00f3sito del estudio geof\u00edsico fue determinar las variaciones de velocidad de ondas P en el interior del macizo rocoso con el fin de inferir el grado de fracturaci\u00f3n y rigidez del mismo, y proyectar la construcci\u00f3n de un t\u00fanel vial de 290 m de longitud, que atravesar\u00e1 la monta\u00f1a de forma casi perpendicular al eje de la misma, a 100 m de profundidad desde la cumbre. La metodolog\u00eda empleada con el nuevo sistema de generaci\u00f3n de ondas s\u00edsmicas, as\u00ed como la aplicaci\u00f3n en este tipo de estructuras geol\u00f3gicas de la SRT, demostraron la posibilidad de obtener resultados satisfactorios para este tipo de estudios geof\u00edsicos con fines geot\u00e9cnicos.", "mime": "application/pdf"}, {"id": "esrj-27712", "words": "8074", "extension": ".pdf", "flesch": "44", "author": "Quintero Ort\u00edz, Fredy Alberto; Torres Valenzuela, Johel; R\u00edos Reyes, Carlos Alberto", "title": "Zeolitisation of Neogene sedimentary and pyroclastic rocks exposed in Paipa (Boyac\u00e1), in the Colombian Andes: simulating their natural formation conditions", "date": "2011", "keywords": "alkaline; colombia; conditions; deposits; et al; figure; formation; hydrothermal; materials; mineral; paipa; phases; products; quartz; reaction; rocks; r\u00edos; starting; synthesis; volcanic; zeolites", "summary": "Simula- tion conditions to be used in zeolite synthesis should thus reproduce the origin of natural zeolites as a process related to the hydrothermal transformation of glass to smectite, prior to the formation of zeolites, which could not be proved in this study. Many experimental studies concerning zeolite synthesis have been conducted to clarify the geological conditions regarding zeolite formation, using different starting materials in varied chemical and temperature con- ditions (Breck, 1974; Gottardi and Galli, 1985).", "mime": "application/pdf"}, {"id": "esrj-27713", "words": "3305", "extension": ".pdf", "flesch": "54", "author": "K., Brindha; L., Elango", "title": "Hydrochemical characteristics of groundwater for domestic and irrigation purposes in Madhuranthakam, Tamil Nadu, India", "date": "2011", "keywords": "area; groundwater; india; irrigation; purposes; quality; samples", "summary": "Comparison of groundwater samples with BIS and WHO standards. Figure 4 shows the plot of groundwater samples grouped on the above basis.", "mime": "application/pdf"}, {"id": "esrj-27714", "words": "2406", "extension": ".pdf", "flesch": "57", "author": "Pe\u00f1a Q, Andr\u00e9s J; Jaramillo R., \u00c1lvaro; Paternina Q., Mar\u00eda J", "title": "Detecting low frequency cycles in rainfall series from Colombian coffee-growing area by using descriptive methods", "date": "2011", "keywords": "cycles; figure; rainfall; series; time; year", "summary": "Moving averages for annual rainfall time series. The purpose of this paper was therefore to assess rainfall time series at five locations having an annual dataset going back more than 46 years in the Colombian coffee-growing area (a rain-fed crop system) to detect other cycles, apart from ENSO, which could be used as predictable patterns for annual rainfall forecasting.", "mime": "application/pdf"}, {"id": "esrj-27715", "words": "3565", "extension": ".pdf", "flesch": "59", "author": "Carvajal, Eduar; Montes, Luis; Almanza, Ovidio A.", "title": "Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel", "date": "2011", "keywords": "age; dating; dose; electron; enamel; esr; radiation; resonance; sample; spin; tooth", "summary": "El ajuste de esta curva permiti\u00f3 obtener la dosis media arque- ol\u00f3gica acumulada en el esmalte (DA), durante el periodo de enterramiento de la muestra. (1) Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 117", "mime": "application/pdf"}, {"id": "esrj-27716", "words": "3729", "extension": ".pdf", "flesch": "48", "author": "Casta\u00f1o, Kelyn Paola; Ojeda, Germ\u00e1n; Montes, Luis", "title": "Thin-layer detection using spectral inversion and a genetic algorithm", "date": "2011", "keywords": "barco; data; figure; inversion; layer; resolution; seismic; thickness; time", "summary": "Spectral inversion Due to the Widess model occurring in nature as the exception not the rule, spectral inversion is based on the fact that an impulse pair of reflec- tors can be decomposed in odd and even parts (Castagna, 2004; Chopra et al., 2006). Lower than seismic resolution sand and shale packages can be re- solved through spectral inversion and correlating them with stratigraphic information derived from well logs.", "mime": "application/pdf"}, {"id": "esrj-27718", "words": "3883", "extension": ".pdf", "flesch": "57", "author": "Torabi Kaveh, Mehdi; Heidari, Mojtaba", "title": "An engineering geological appraisal of the Chamshir dam foundation using DMR classification and kinematic analysis, southwest of Iran", "date": "2011", "keywords": "analysis; area; chamshir; classification; dam; dmr; engineering; foundation; left; mass; rock; site", "summary": "Analysis consisted of rock mass classification and a kine- matic analysis of the dam foundation\u2019s rock masses. Rock mass classifications were made in line with RMR and DMR classification for the dam foundation.", "mime": "application/pdf"}, {"id": "esrj-27720", "words": "4546", "extension": ".pdf", "flesch": "39", "author": "Galb\u00e1n Rodr\u00edguez, Liber; Vidaud Quintana, Ingrid N.; Chuy Rodr\u00edguez, Tom\u00e1s Jacinto; Ruiz Ruiz, Jos\u00e9 Mar\u00eda; Calder\u00edn Mestre, Francisco; Alvarez Deulofeu, Eduardo Rafael", "title": "Reflexions on multidisciplinarity and geologic risk management in Cuba", "date": "2011", "keywords": "construction; cuba; engineering; infrastructure; management; measures; national; project; risk; risk management; rodr\u00edguez; specialists; work", "summary": "Multidisciplinarity in environmental management and therefore in geological risk management has a close relationship with decision theory which has been studied extensively in the fi eld of economics and engineer- ing science. As in economics, agriculture, industrial engineering and social sciences, decision theory is a necessary tool in geological science applications, particularly in geological risk management regarding construction and infrastructure where specialists from diff erent institutions are involved, including con- struction, architectural design, projects, scientifi c institutions specialising in implementing geological projects, geotechnical studies, physical plan- ning and government.", "mime": "application/pdf"}, {"id": "esrj-31195", "words": "2267", "extension": ".pdf", "flesch": "53", "author": "Brise\u00f1o, Luis A.", "title": "El alumbramiento de una ciencia", "date": "1992", "keywords": "briceno; ciencia; colombia; como; con; del; geofisica; las; los; para; por; que; siglo; tierra; una", "summary": "6 Brlceilo: EI alumbramlento de una elencla A.G. Wemer en 1750 utiliza el tennino Geognosia; Humboldt a quien se puede considerar como uno de los padres de la geoffsica utilizo el termino de geograffa fisica; F. Neunann, el de Fisica de la Tierra. Porque la geofisica posee estas caracteristicas, se ha convertido en ciencia universal, independiente de la geologia, que aparta eI objeto y de la fisica, de la cual toma su metodologia.", "mime": "application/pdf"}, {"id": "esrj-31196", "words": "8331", "extension": ".pdf", "flesch": "61", "author": "Eslava, Jes\u00fas; D\u00edaz, Ramiro", "title": "Aplicaci\u00f3n del an\u00e1lisis de Fourier para describir la variaci\u00f3n diurna de elementos clim\u00e1ticos", "date": "1992", "keywords": "-0.03; aire; base; bogota; cada; como; con; datos; del; fourier; horarios; horas; humedad; las; los; media; modelo; octubre; para; por; presion; puede; que; relativa; tabla; temperatura; una; valores", "summary": "Los resullados oblenidos son muy promisorios pues se trato de una aplicacion preliminar de la melodologia, que aun puede mejorarse medianle el manejo del procedimienlo esladislico que delerrnina los valores medics de los elemenlos meteoroloqicos, idenlificando las variables que generan las modificaciones en la amplilud de la senal y la utilizacion de fillros que conlamplen las variables que originan esas diferencias y las disminuyan a un grade aceptable, previa definicion de las variables que inlervienen y la forma en que 10 hacen. GENERALIDADES SOBRE MODELOS MATEMATICOS Y METEOROLOGIA Una de las particularidades caracteristicas de la meteorologia moderna es la de implementar un amplio e impetuoso proceso de utilizacion de los rnetodos matematicos y de los computadores en todos los asuntos aplicados y te6ricos.", "mime": "application/pdf"}, {"id": "esrj-31197", "words": "2144", "extension": ".pdf", "flesch": "63", "author": "Brice\u00f1o, Luis A.; Vernette, George", "title": "Manifestaciones del diapirismo arcilloso en el margen colombiano del Caribe", "date": "1992", "keywords": "del; para; programa; secuencia; segmento", "summary": "Las fonnulas representan una medida de la varianza alrededor de la media total X de la secuencia. La sum a de cuadrados dentro de la secuencia total se calcula de acuerdo a la siguiente fonnula: X;j = i-punto en j-segmento ~ = media de j-segmento nj = # de puntos en j-segmento m = # de segmentos La suma de cuadrados entre segmentos se calcula como: sse = I;m (5< - X\\2 / (m-1) }=I i' [2] x = media total de la secuencia X(ij)", "mime": "application/pdf"}, {"id": "esrj-31198", "words": "2144", "extension": ".pdf", "flesch": "63", "author": "A. Montes, Luis", "title": "Programa recursivo en pascal para determinaci\u00f3n de zonas en una secuencia, por el m\u00e9todo de an\u00e1lisis de varianza", "date": "1992", "keywords": "del; para; programa; secuencia; segmento", "summary": "Las fonnulas representan una medida de la varianza alrededor de la media total X de la secuencia. La sum a de cuadrados dentro de la secuencia total se calcula de acuerdo a la siguiente fonnula: X;j = i-punto en j-segmento ~ = media de j-segmento nj = # de puntos en j-segmento m = # de segmentos La suma de cuadrados entre segmentos se calcula como: sse = I;m (5< - X\\2 / (m-1) }=I i' [2] x = media total de la secuencia X(ij)", "mime": "application/pdf"}, {"id": "esrj-31200", "words": "9826", "extension": ".pdf", "flesch": "60", "author": "Eslava, Jesus", "title": "Perfil altitudinal de la temperatura media del aire en Colombia", "date": "1992", "keywords": "aire; altitud; anti; anual; apto; barra; bogota; cauc; colombia; con; cord; cund; datos; de bogota; de la; de los; del; distribuci6n; en colombia; entre; estaciones; figura; hull; la temperatura; las; los; los residuos; magdalena; media; para; que; region; residuos; san; sant; tabla; temperatura; temperatura media; toll; vall; valores", "summary": "Un anal isis delallado de la variaoion espacial mensual y anual de la temperatura y de los residuos ya mencionados, perrnitio delimilar el territorio colombiano en diferentes regiones (tipificadas por la latitud, longitud, confiquracion del relieve, posicion de las cordilleras, valles interandinos, serranias, lIanuras, circulacion general de Ia atmosfera, distribuci6n de otros elementos clirnaticos y otras caracteristicas del conjunto fisiografico natural). TEttP.ttED.NUL 1~====~Ode edlanean 60 50 30 '20 10 4 5 6 7 B 9 10 BAR\u00b7 Figura 4. Dlslrlbuci6n de frecuencla de los reslduos (Tabla 3), COLOMBIA. , En consecuencia se efectuo un anal isis mas detallado de cada uno de los resultados y residuos obtenidos en las 20 veces que se aplico el control de calidad y los resultadc.i de ese analisie permitieron concluir que, si bien es cierto que la temperatura del aire depende en gran medida de la altitud y que esa dependencia predomina sobre los demas factores climaticos, existen otros facto res que, aun cuando en menor forma, influyen y as necesario tenerios en cuenla para asi lograr resultados mas optimos.", "mime": "application/pdf"}, {"id": "esrj-31201", "words": "1549", "extension": ".pdf", "flesch": "75", "author": "D\u00edaz, Ramiro L.", "title": "Una soluci\u00f3n al problema inverso en geomagnetismo", "date": "1992", "keywords": "que", "summary": "Conociendo los datos de anomal\u00edas magn\u00e9ticas y por medio de un programa qu e ejecuta un proceso iterativo eficiente, se determina la estructura bidimensional bajo el perfil muestreado . El m\u00e9todo consiste en solucionar un sistema m\u00f3vil de ecuaciones no lineales a lo largo de un perfil magn\u00e9tico, en lo posible perpendicular a la estructura.", "mime": "application/pdf"}, {"id": "esrj-31202", "words": "4698", "extension": ".pdf", "flesch": "41", "author": "Moreno, Juan Manuel", "title": "Reinyecci\u00f3n: una herramienta en geolog\u00eda ambiental", "date": "1992", "keywords": "acuiferos; agua; como; con; cuando; del; desechos; donde; durante; fragmentos; gas; inyeccion; las; lodos; los; manejo; para; pertoracion; piscinas; por; pozo; proceso; que; recobro; residuos; ser; son; tecnologia; una", "summary": "siendo el almacenamiento funcion del volumen y de la porosidad. 2) Oompresion del f1uido existente. CONCLUSIONES En un proceso de reinyecci6n de residuos f1uidos de perforaci6n, el conocimiento de la roca del yacimiento, de los acuiferos confinados y de los ftuidos que con1ienen, es un aspecto fundamental para su planificaci6n, desarrollo y control.", "mime": "application/pdf"}, {"id": "esrj-31210", "words": "2547", "extension": ".pdf", "flesch": "49", "author": "Ord\u00f3\u00f1ez B., Luz Amalia", "title": "Estudio geomagn\u00e9tico en el Volc\u00e1n Galeras", "date": "1993", "keywords": "como; del; espectro; galeras; las; los; modelos; para; perfil; por; profundidad; que", "summary": "En este trabajo se utilizaron fundamentalmente las tecnicas del analisis espectral, con el fin de resolver: a) algunas operaciones en el dominio de la frecuencia: filtros de alta frecuencia y reducci6n al polo norte rnaqnetico, para extraer las anomalfas generadas por fuentes superficiales y para facilitar los mecanismos de interpretaci6n, respectival'nente; b) mediante el anallsis de los espectros de potencia reducidos al polo, estimar los pararnetros de las fuentes individuales, como aproximaci6n a la soluci6n del problema directo de la teorla de campos de potencial; c) estimar la profundidad de la isoterma de Curie. m = 2h [3] 2) el efecto combinado de la profundidad del tope superiory la extensi6n vertical.", "mime": "application/pdf"}, {"id": "esrj-31212", "words": "2387", "extension": ".pdf", "flesch": "65", "author": "Montes Vides, Luis Alfredo", "title": "Fractales y series de datos geof\u00edsicos", "date": "1993", "keywords": "datos; del; dimensi6n; escala; fractal; hurst; los; para; que; una", "summary": "Este resultado coincide con los obtenidos por Hewett (Hewett at aI., 1986) en el calculo de la dimensi6n fractal por el rnstodo de anatsls de frecuencia, de la porosidad medida en un registro de pozo distinto (1.100 pies), y para el cual el exponente de Hurst fue H = 0.855. 2. FUNDAMENTOS TEORICOS La definici6n formal del concepto de fractal fue planteada por el creador de la Geometrfa fractal, Benoit Mandelbrot, en los siguientes terminos: Un fractal es un conjunto para el cual la dimensi6n Hausdorf-Besicovith estrictamente 10 Montes: Fractales y series de datos geofisicos excede la dimensi6n topoI6gica; y de una. manera menos formal como: La forma hecha de partes similares de algun modo.", "mime": "application/pdf"}, {"id": "esrj-31213", "words": "5446", "extension": ".pdf", "flesch": "62", "author": "Eslava R., Jes\u00fas A.", "title": "Variaci\u00f3n horaria de la humedad relativa del aire en el Observatorio Meteorol\u00f3gico Nacional Santaf\u00e9 de Bogot\u00e1 - Colombia", "date": "1993", "keywords": "agua; aire; bogota; con; del; entre; horaria; humedad; humedad relativa; las; los; mas; meteorol6gico; para; puede; que; relativa; santafe; temperatura; una; valores; vapor; variaci6n", "summary": "ISSN 0121-2974 RESUMEN Se determinan los valores medios horarios y la variaci6n de la humedad relativa del aire para cada mes y el ano, con base en las observaciones horarias realizadas en la estaci6n Observatorio Meteorol6gico Nacional-Ciudad Universitaria de Santafe de Bogota, durante el periodo 1941-1960. EI valor medio de la humedad relativa, calculado con base en 24 observaciones diarias, es de 76% y cambia muy poco a traves del afio (entre 79% y 73%).", "mime": "application/pdf"}, {"id": "esrj-31215", "words": "1623", "extension": ".pdf", "flesch": "53", "author": "Brise\u00f1o G., Luis A.; Le\u00f3n, Robinson", "title": "Los potenciales espont\u00e1neos: aspectos b\u00e1sicos y sus aplicaciones", "date": "1993", "keywords": "con; del; electrodos; las; los; que; sobre", "summary": "Ciudad Universitaria 07-11-92 EI SP depende en gran medida de la composici6n intrfnseca de la roca, por eso sus valores y comporlamiento son reflejo de su Iitologia. Las medidas se realizaron en predios de la Universidad Nacional de Colombia en santate de Bogota.", "mime": "application/pdf"}, {"id": "esrj-31216", "words": "3652", "extension": ".pdf", "flesch": "55", "author": "Brice\u00f1o G., Luis A.; Eslava R., Jes\u00fas A.", "title": "La temperatura del interior de la tierra", "date": "1993", "keywords": "calor; con; convecci6n; cual; del; f1ujo; fusi6n; gradiente; interior; las; los; manto; mas; nucleo; para; por; que; ser; temperatura; tierra; una", "summary": "Por otra parte, el calor que el interior de la Tierra transfiere hacia el exterior por conducci6n, tiene un promedio global de 61 mW/m2 , cerca de 3x10'2 W en todo el planeta, 10 cual equivale a 5.000 a 6.000 veces menos energia que la suministrada por el Sol. [3] y el interior de la Tierra aun no sabria que el exterior es frio; al reemplazar en [3], , = 4,5x1 09 aries, D = 400 km.", "mime": "application/pdf"}, {"id": "esrj-31218", "words": "8982", "extension": ".pdf", "flesch": "57", "author": "D\u00edaz C., Ramiro L.", "title": "Relaci\u00f3n entre susceptibilidad magn\u00e9tica y contenido de minerales pesados en un dep\u00f3sito aluvial", "date": "1993", "keywords": "-0.3; -0.8; -0.9; -1.9; -2.0; -2.3; -3.3; -4.1; -4.2; -4.3; -4.7; 0.6; atm6sfera; brillo; con; del; disminuci6n; efectos; entre; erupci6n; fue; gases; horas; insolaci6n; las; los; meteorol6gicos; por; que; regi6n; san; solar; una; valores; volcan", "summary": "los valores de la primera zona son mas bajos y los de la segunda zona son mas altos que los promedios. Andina y la Regi6n del Catatumbo; en esta zona los sistemas meteorol6gieos aetuantes (Por ej., la ITC) obstaeulizan el paso de la radiaei6n solar y log ran que s610 se den menos de 5 horas de brillo solar por dfa y; b) una zona eomprendida por la mayor parte de la Orinoquia, Amazonia y la Regi6n del Caribe;", "mime": "application/pdf"}, {"id": "esrj-31220", "words": "8982", "extension": ".pdf", "flesch": "57", "author": "Eslava R., Jes\u00fas A.", "title": "Efectos de la erupci\u00f3n del volc\u00e1n Nevado del Ruiz, ocurrida el 13-noviembre-1985, sobre la atm\u00f3sfera en Colombia. Caso: insolaci\u00f3n (brillo solar)", "date": "1993", "keywords": "-0.3; -0.8; -0.9; -1.9; -2.0; -2.3; -3.3; -4.1; -4.2; -4.3; -4.7; 0.6; atm6sfera; brillo; con; del; disminuci6n; efectos; entre; erupci6n; fue; gases; horas; insolaci6n; las; los; meteorol6gicos; por; que; regi6n; san; solar; una; valores; volcan", "summary": "los valores de la primera zona son mas bajos y los de la segunda zona son mas altos que los promedios. Andina y la Regi6n del Catatumbo; en esta zona los sistemas meteorol6gieos aetuantes (Por ej., la ITC) obstaeulizan el paso de la radiaei6n solar y log ran que s610 se den menos de 5 horas de brillo solar por dfa y; b) una zona eomprendida por la mayor parte de la Orinoquia, Amazonia y la Regi6n del Caribe;", "mime": "application/pdf"}, {"id": "esrj-31222", "words": "1872", "extension": ".pdf", "flesch": "50", "author": "Moreno Murillo, Juan Manuel", "title": "Las geociencias en la filatelia", "date": "1993", "keywords": "abril; como; con; del; estampillas; filatelia; geociencias; geofisica; las; los; moreno; que", "summary": "EI mayor interes de las emisiones se nota hacia las riquezas naturales, potencial de hidrocarburos y algunos minerales estrateqicos. Desde el punta de vista de la Astronomfa se reconoce el Observatorio Astron6mico Nacional y una emisi6n conmemorativa a Nicolai Copernico.", "mime": "application/pdf"}, {"id": "esrj-31225", "words": "11416", "extension": ".pdf", "flesch": "70", "author": "Moreno Murillo, Juan Manuel", "title": "The 1985 M\u00e9xico earthquake", "date": "1995", "keywords": "american; area; city; damage; earthquake; event; figure; gap; lake; mexico; mexico city; mexico earthquake; michoacan; september; source; subduction; time; zone", "summary": "Moment-Tensor spectra of the 19 sept. 85 and 20 sept. 85, Mlchoacan, Mexico earthquake, Geophys. Tectonic setting and source parameters of the September 19, 1985, Michoacan Mexico earthquake, Geophys.", "mime": "application/pdf"}, {"id": "esrj-31228", "words": "2965", "extension": ".pdf", "flesch": "68", "author": "Eslava Ram\u00edrez, Jes\u00fas Antonio", "title": "Efectos de la erupci\u00f3n del volc\u00e1n nevado del Ruiz, ocurrida el 13-noviembre-1985, sobre la atm\u00f3sfera en Colombia. Caso: humedad", "date": "1995", "keywords": "aire; del; entre; humedad; las; los; por; que; relativa; volcan", "summary": "Esas innumerables variaciones temporo-espaciales estuvieron sometidas a factores externos entre los cuales el factor primario fue la radiaci6n solar y sus variaciones; ademas, la complejidad de los procesos atmosfericos y su continua y temporal modificaci6ndependieron basicamente de la interrelaci6n que se da entre los elementos meteorol6gicos y entre ellos y el conjunto de procesos zonales de convecci6n termica y dinamica, de la influencia extensiva de los diferentes sistemas meteorol6gicos y los factores climaticos. Tolima y Valle del Cauca y, algunas areas de Boyaca, Caqueta, Cauca, Meta y Putumayo (Fig.4).", "mime": "application/pdf"}, {"id": "esrj-31230", "words": "3562", "extension": ".pdf", "flesch": "55", "author": "P\u00e9rez Cer\u00f3n, Rosalbina", "title": "Estudio geoel\u00e9ctrico en el valle alto del Rio Pat\u00eda", "date": "1995", "keywords": "area; areniscas; con; del; entre; esta; las; los; ohm; por; profundidad; que; resistividades; rocas; secci6n; sedimentos; una; unidades; valle", "summary": "La principal via de acceso la constituye la carretera Panamericana, a la cual convergen diferentes carreteras que comunican con los distintos municipios y caserlos de la zona (Fig.1) 1.2 Geologfa y geomorfologfa EI valle alto del Rfo Patla, esta constituido por una secuencia vulcano-sedimentaria terciaria y sedimentos recientes en depositos aluviales que conforman abanicos, terrazas y dep6sitos de coluvion, sobre un basamento cretaclco, (Torres et al., 1991) (Fig.2). Existen dos abanicos en la zona: abanico de Galindez constituido por niveles de arenas pumfticas y arenas cuarzo-teldespaticas de grana fino a grueso y abanico de Olaya, constituido por gravas en matriz arcillosa.", "mime": "application/pdf"}, {"id": "esrj-31231", "words": "4495", "extension": ".pdf", "flesch": "55", "author": "Salcedo Hurtado, Elkin; Coral G\u00f3mez, Carlos", "title": "Atenuaci\u00f3n de intensidades s\u00edsmicas en el territorio colombiano", "date": "1995", "keywords": "bucaramanga; colombia; como; con; cual; del; esta; forma; isosistas; las; los; los terremotos; nido; ocurridos; para; por; profundidad; que; regi6n; santander; terremotos; territorio; una; zona", "summary": "(1974): Los campos geoffsicos y la sismicidad de la parte oriental de la region Carpato-Balcanica. y la del Nido de Bucaramanga, con el objetivo de establecer mejor los coeficientes de atenuaci6n regionales.", "mime": "application/pdf"}, {"id": "esrj-31232", "words": "3776", "extension": ".pdf", "flesch": "57", "author": "D\u00edaz Campos, Ramiro Le\u00f3n; Eslava Ram\u00edrez, Jes\u00fas Antonio", "title": "Pron\u00f3stico de valores horarios de la temperatura del aire en el Observatorio Meteorol\u00f3gico Nacional-Santaf\u00e9 de Bogot\u00e1", "date": "1995", "keywords": "aire; con; datos; del; fourier; horas; las; los; para; que; temperatura; una; valores", "summary": "Un ejemplo de la aplicaci6n del modele al pron6stico se presenta en las Tablas 4 a 6, en las cuales con los datos de temperatura del aire medidos en el Observatorio Meteorol6gico Nacional el 6 y 7 de octubre de 1960 (tomados de IGAC, 1961), se pronostican los valores horarios para perfodos de 12, 6 Y 6 horas, respectivamente. Esos ensayos tamblen muestran que las desviaciones grandes pueden estar indicando errores en la serie original de datos o la presencia de una situaci6n meteorol6gica particular 0 no usual; en este sentido el modelo puede ser usado como un control de calidad de la informacion.", "mime": "application/pdf"}, {"id": "esrj-31233", "words": "2663", "extension": ".pdf", "flesch": "68", "author": "D\u00edaz Campos, Ramiro Le\u00f3n", "title": "Cambios de las anomal\u00edas magn\u00e9ticas de campo total debidos a las variaciones de la inclinaci\u00f3n y de la declinaci\u00f3n", "date": "1995", "keywords": "campo; con; datos; del; las; los; para; que; total; una", "summary": "EI proceso se realiza en el dominio de la frecuencia, teniendo como base los cambios producidos en los parametres declinaci6n e inclinaci6n maqnetica en el area de muestreo. k: Vector de onde e 'k~ + k 1Kf2 = k~n k~ + k~ o : Intervalo de muestr80 r; Vector de posicion r = xex + yey = jDex + kDey o :; j,m :; M-1; 0:; k,n :; N-1 Es posible plantear en el dominio de la frecuencia, operaciones equivalentes a las derivadas direccionales en el dominio del espacio: [4] ex' v t:.", "mime": "application/pdf"}, {"id": "esrj-31234", "words": "3091", "extension": ".pdf", "flesch": "67", "author": "Mart\u00ednez D\u00edaz, William Alberto; Rocha A., Germ\u00e1n A.; S\u00e1nchez Rodr\u00edguez, Laura Marlene", "title": "Un modelo geod\u00e9sico para Colombia", "date": "1995", "keywords": "anomalfa; bouguer; colombia; del; esta; gravedad; las; los; para; por; que; sobre; valores", "summary": "A partir de los valores de la anomalfa lsostatica (aproximada), resultante de la diferencia entre la anomalfa Bouguer simple observada y la misma, procesada por medio de la Transformada de Fourier Bidimensional, se aplic6 el modelo ffsico-matemattco de Stokes, con el cual se determinan las ondulaciones geoidales relacionando la gravedad normal, el potencial an6malo y las anomalfas de la gravedad; tales ondulaciones se referenciaron al elipsoide WGS-84. [4] [5] donde: CGmn: son los coeficientes de Fourier calculados a traves de la transformada directa y equivalen a: CG =_1_, ' t:J.g e-/limn eZkmn [6] mn MN7.tr /k Kmn: es el vector de onda r: es el vector posicion M,N: corresponden al nurnero de puntos muestra en las direcciones x e y. Para el procesamiento de los datos se establece una grilla de 64x64 (mxn)con intervalos de 0.25\u00b0 que corresponden a la dimension de la grilla y al intervalo de muestreo respectivamente.", "mime": "application/pdf"}, {"id": "esrj-31236", "words": "4261", "extension": ".pdf", "flesch": "47", "author": "Bernal Nieto, Dora Deyanira", "title": "Una propuesta tem\u00e1tica para un curso de mec\u00e1nica newtoniana", "date": "1995", "keywords": "absoluto; como; con; conceptos; cuerpo; del; entre; espacio; estudiantes; ffsica; las; los; mach; movimiento; newton; newtoniana; para; pensamiento; por; que; sobre; son; teorfa; tiempo; tierra; una", "summary": "Definidos los fundamentos te6ricos la realidad ffsica puede pensarse a traves de los conceptos y de los principios generales de la teorfa. En los Principia Newton desarrolla los principios de la dlnarnlca de los cuerpos, enuncia sus tres leyes; aplica estos principios al mecanismo del universo, enuncia la ley de la gravitaci6n universal; estudia la rnecanica de los f1uidos y el movimiento de los cuerpos en medios resistentes y otros aspectos de la fisica general.", "mime": "application/pdf"}, {"id": "esrj-31238", "words": "3442", "extension": ".pdf", "flesch": "67", "author": "Briceno Guarupe, Luis Alberto; D\u00edaz Campos, Ramiro Le\u00f3n", "title": "Medida de propiedades din\u00e1micas de rocas \"in situ\" y computo de par\u00e1metros elastomec\u00e1nicos", "date": "1995", "keywords": "como; con; del; ecuaci6n; las; los; ondas; para; por; que; una", "summary": "Nos ha parecido conveniente presentar inicialmente un sinteticomarco te6rico acercade las definiciones y relaciones de parametres, asi como de los sistemas de unidades utilizados. En la parte de adquisici6n recalcamos algunos de los problemas baslcos que se encuentran en el campo y en 10 referente al analisis de los resultados hemos establecido algunas relacionesempiricas que podrian servir de guia para su enriquecimiento en trabajos posteriores.", "mime": "application/pdf"}, {"id": "esrj-31239", "words": "3171", "extension": ".pdf", "flesch": "59", "author": "Mart\u00ednez D\u00edaz, William Alberto; Fl\u00f3rez Mu\u00f1oz, Juan Alberto; S\u00e1nchez Rodr\u00edguez, Laura Marlene", "title": "Determinaci\u00f3n de nuevas estaciones absolutas de gravedad en Colombia", "date": "1995", "keywords": "base; bogota; como; con; del; estaci6n; este; gravedad; gravity; honda; las; los; masa; para; por; que; son; una", "summary": "En la parte inferior izquierda aparece el histograma que resume la distribuci6n de los 4800 datos, cada divisi6n de la escala horizontal corresponde a 10IlGales; en la parte inferior derecha se observa el valor medio de la gravedad para las 4800 medidas y la desviaci6n standar de los 48 sets y la de las 4800 observaciones. EI Instrumento puede operar en el modo de cafda libre 0 en el modo de Ianzarniento de la masa de prueba.", "mime": "application/pdf"}, {"id": "esrj-31241", "words": "788", "extension": ".pdf", "flesch": "37", "author": "Geof\u00edsica, Colombiana", "title": "Nota editorial", "date": "2000", "keywords": "con; geofisica; que", "summary": "La aplicaci6n de la fisica atrnosferica, muestra en el articulo de Montoya y Eslava su aplicaci6n en el caso de las tormentas electricas en la Sabana de Bogota y, siguiendo con corrientes electricas, San in y Briceno muestran la posibilidad de aplicar metodos de alta resoluci6n mediante cortes verticales con la nueva Desde nuestra anterior edici6n hasta la fecha han sucedido, en el ambito nacional, diversos hechos que deben conducir a reflexi6n y a acciones en el campo de la geofisica.", "mime": "application/pdf"}, {"id": "esrj-31243", "words": "3626", "extension": ".pdf", "flesch": "42", "author": "Valcarce Ortega, Rosa M.; Gonz\u00e1lez Espinosa, Jacqueline", "title": "Modelo hidrogeof\u00edsico de la cuenca sur de La Habana", "date": "2000", "keywords": "acuifero; con; conductancia; del; entre; este; geofisicos; las; log; longitudinal; los; metros; para; por; porosidad; pozo; que; transmisividad; una", "summary": "Estos resultados demuestran que a pesar de la marcada heterogeneidad y anisotropia de las propiedades de este acuifero carstico, existe una componente estructural bien definida que permits relacionar la variabilidad de los parametres geofisicos de pozo y de los para metros hidrodinamicos como la velocidad del flujo de agua subterranea y, por 10 tanto, la permeabilidad, la conductividad hidraulica y la transmisividad, aumentan con la disminuci6n del para metro de arcillosidad relativa y con el incremento de la conductancia longitudinal. La aplicacion combinada del anabsis euclidiano de aqrupacion, del analisis de correlacion y de las relaciones de Uvarov, perrnitio separar la componente estructurada de las variables estudiadas y definir la correlacion entre para metros geofisicos de pozo y la velocidad de filtracion de las aguas subterraneas con coeficientes superiores a 0.8; se establece la relacion existente entre los para metros de Dar-Zarrouk (calculados a partir del registro electrico)", "mime": "application/pdf"}, {"id": "esrj-31244", "words": "4534", "extension": ".pdf", "flesch": "52", "author": "Hurtado Briceno, Oscar Eduardo; Leuro Parra, Erick", "title": "Modelo gravim\u00e9trico del espesor de la corteza terrestre en Colombia", "date": "2000", "keywords": "bouguer; con; corteza; del; entre; espesor; la corteza; las; los; modelo; pais; para; por; presenta; que; region; tendencia; terrestre; total; tsuboi; una; valor; valores", "summary": "superficie del relieve estan conectados muy cercanamente con el espesor de la corteza terrestre (Mironov, 1977). 2.3 Solucion de los Coeficientes 8mn Y Hmn De acuerdo a la expresi6n (8), el espesor de la corleza terrestre esta en funci6n de la expansi6n bidimensional de Fourier para la Anomalia Bouguer Total y la altura topoqrafica, ello se logra haciendo: cos cos Bmn nIX nysen sen (10)", "mime": "application/pdf"}, {"id": "esrj-31245", "words": "3830", "extension": ".pdf", "flesch": "58", "author": "Montoya Gaviria, Gerardo de J.; Eslava Ram\u00edrez, Jesus Antonio", "title": "An\u00e1lisis de las condiciones que favorecen el desarrollo de la actividad convectiva de las tormentas el\u00e9ctricas en la Sabana de Bogot\u00e1", "date": "2000", "keywords": "bogota; como; con; del; desarrollo; e w; electricas; este; las; los; ne ne; ne w; para; por; que; sabana; tormentas; w w", "summary": "En las Fig.3 y 4 se muestra el comportamiento de la velocidad del viento, (en nudos), y de la depresi6n del punta de rocio, respectivamente, dia por dia, y para un periodo de cuatro arios consecutivos. Con el objeto de tener un estimativo de esta afirmaci6n, se calcul6 la frecuencia relativa fr, de ocurrencia de tormenta electrica por rangos de variaci6n de la depresi6n del punto de recto DR. y de la velocidad del viento W. Los resultados se muestran en la Tabla 2 y en la Fig.5.", "mime": "application/pdf"}, {"id": "esrj-31246", "words": "2918", "extension": ".pdf", "flesch": "51", "author": "Montes Vides, Luis Alfredo", "title": "An\u00e1lisis de sensibilidad en la estimaci\u00f3n de la funci\u00f3n caracter\u00edstica de punta de hamilton de la s\u00edsmica geom\u00e9trica", "date": "2000", "keywords": "caracteristica; con; del; funci6n; los; para; por; que; rayo; sistema; tiempos; transite; una", "summary": "Las normas mas usadas son la de error absoluto minimo y la de error cuadratico medio minimo definidas respectivamente como: (If)11= 2::)&, y (-----~~ (If)II=/''I& 2 JL...A ' Para cada norma se supone que los datos se comportan sequn un tipo de estadistica, as! separadas por interfaces suaves, los tiernpos de los eventos de reflexi6n registrados en vecindad del rayo central pueden estimarse a partir de una funci6n hiperb61ica que corresponde a la funci6n caracteristica de punto de Hamilton, la cual", "mime": "application/pdf"}, {"id": "esrj-31247", "words": "2422", "extension": ".pdf", "flesch": "64", "author": "D\u00edaz C., Ramiro", "title": "Algunos algoritmos para filtros digitales en el procesamiento de informaci\u00f3n electromagn\u00e9tica", "date": "2000", "keywords": "campo; componente; del; ecuaci6n; fourier; las; los; mnw; que; rnaqnetico", "summary": "hi mnwo hf mnro hf mnw EI ajuste se realiza en el domino de la frecuencia, con el fin de encontrar los mejores valores de ad . La implernentacion de fiitros en el dominio de la frecuencia que algunos autores, de los antes citados, han planteado desde diversos puntos de vista, es el objetivo de este documento, el cual se aborda en torno a la metodologia del Analisis de Fourier.", "mime": "application/pdf"}, {"id": "esrj-31248", "words": "7069", "extension": ".pdf", "flesch": "53", "author": "Briceno Guarupe, Luis Alberto; Arango Haupt, Irene", "title": "Modelamiento geoel\u00e9ctrico y gravim\u00e9trico de un sector del suroeste de la Sabana de Bogot\u00e1", "date": "2000", "keywords": "anomalia; arcillolitas; area; arenisca; base; bogota; como; con; de la; del; en el; entre; espesor; esta; estudio; falla; grupo; guadalupe; guaduas; hacia; hasta; la fm; las; los; muy; ohm; para; parte; por; presenta; que; resistividades; terreros; una; zona", "summary": "Guaduas, observado en las canteras del costado derecho, al norte de la Represa de Terreros. Por medio de la geofisica se intent6 determinar la continuidad en el subsuelo de las estructuras y unidades aflorantes y, asi mismo, establecer la geometria de las unidades que conforman la cuenca.", "mime": "application/pdf"}, {"id": "esrj-31281", "words": "2856", "extension": ".pdf", "flesch": "59", "author": "Montes Vides, Luis Alfredo", "title": "La funci\u00f3n caracter\u00edstica de punto de Hamilton y la funci\u00f3n de tiempos de difracci\u00f3n de la s\u00edsmica geom\u00e9trica en la migraci\u00f3n con amplitudes verdaderas", "date": "2000", "keywords": "del; funci6n; las; los; para; por; que; rayo; superficie; tiempo", "summary": "tornara un valor significativo cuando el argumento de la funci6n sea cero, v.g. donde ambas funciones coinciden, indicando que la muestra de la traza pertenece a un punta de reflexi6n, Fig.2. EI operador de restituci6n del campo de onda migrado consta del filtro de diferenciaci6n multiplicado por un factor de peso, que sequn la ecuaci6n (20) es 8eos Po l(vo8.T), el efecto debido a la dispersi6n qeornetrica se remueve de la secci6n sismica multiplicando el operador en el dominic de la frecuencia antes 0 despues de la migraci6n.", "mime": "application/pdf"}, {"id": "esrj-31282", "words": "2716", "extension": ".pdf", "flesch": "57", "author": "San\u00edn, Camilo Ernesto; Briceno Guarupe, Luis Alberto", "title": "Tomograf\u00eda geoel\u00e9ctrica: dos ejemplos en la Sabana de Bogot\u00e1", "date": "2000", "keywords": "como; con; datos; del; donde; las; los; modelo; para; que; resistividad; tomografia; una; valores", "summary": "Los valores d son los datos que obtenemos del experimento y los valores de m son los parametros del modele que vamos a encontrar. Por medio de los resultados obtenidos en ambas tomografias se ve que la profundidad de investiqacion de la tomografia qeoelectrica depende de la composicion de los materiales sobre los que se va a trabajar y del arreglo qeornetrico utilizado.", "mime": "application/pdf"}, {"id": "esrj-31283", "words": "878", "extension": ".pdf", "flesch": "36", "author": "Briceno Guarupe, Luis Alberto", "title": "Maestr\u00eda en geof\u00edsica, una nueva opci\u00f3n en las geociencias", "date": "2000", "keywords": "con; geociencias; geofisica; las; que", "summary": "EL PROGRAMA MAESTRIA EN GEOFISICA Objetivos: \u2022 Obtener un mejor entendimiento de la dinarnica, estructura y composici6n de la tierra y aplicar ese conocimiento en la \u2022 Incentivar y fortalecer los grupos de investiqacion en las diferentes lineas de la Geofisica, para colaborar con el desarrollo integral de la region.", "mime": "application/pdf"}, {"id": "esrj-31287", "words": "481", "extension": ".pdf", "flesch": "33", "author": "Geof\u00edsica, Colombiana", "title": "Nota editorial", "date": "2001", "keywords": "que; universidad", "summary": "Estamos alentando a la nueva generaci6n de cientificos de la tierra a mostrar sus trabajos y producciones, quienes de una manera tesonera y patri6tica y la confianza en un futuro prornetedor para las generaciones venideras, y 10que nos sostiene con el indeclinable animo de participar en esta tarea mancomunada de la producci6n y continuidad de esta, su revista Geoftsica Colombiana.", "mime": "application/pdf"}, {"id": "esrj-31288", "words": "4446", "extension": ".pdf", "flesch": "58", "author": "Montes Vides, Luis", "title": "Interval velocity determination by downward continuation of the traveltime function: Paraxial ray approximation", "date": "2001", "keywords": "central; interface; interval; layer; ray; surface; time; travel", "summary": "Vlm/s ] Erro[m/s] Erro[m/s] 0 0 0 0 200 200 200 200 400 400 400 400 GOO GOO GOO GOO 800 800 L- 800 LJ 800 K 1000 000 E 000 K 000O\u00a3 O\u00a3 N N N N '1200 200 200 200 1400 400 ) 400 400 11 GOO GOO 600 600 1800 800 800 800 2000 000 000 000 0 5000 0 5000 0 50 0 50 Figure 6. In a system with N layers the propa- gator matrix is written as the product of the N individual propagator matrices of each piece: B ]k~N-l[A B]_N II -] -] D .", "mime": "application/pdf"}, {"id": "esrj-31289", "words": "3043", "extension": ".pdf", "flesch": "48", "author": "Brise\u00f1o, Luis Alberto; Avellaneda L\u00f3pez, Pedro Mauricio", "title": "Modelaci\u00f3n del problema inverso en geoel\u00e9ctrica 2D mediante elementos finitos", "date": "2001", "keywords": "con; datos; del; ecuaci6n; elementos; finitos; las; los; modelo; para; que; resistividades; una", "summary": "Adernas, la topologfa de la red de elementos finitos fue construida de forma tal que los elementos pudieran ser contenidos por algun blo- que del modelo de inversi6n. El program a lee de un archivo de texto el valor de resistividad aparente tornado en cada lectura horizontal para cada nivel de da- tos, luego aproxima la profundidad de investigaci6n y efectua una interpo-laci6n de los valores de resistividad.", "mime": "application/pdf"}, {"id": "esrj-31290", "words": "5911", "extension": ".pdf", "flesch": "61", "author": "Salcedo Hurtado, Elkin de Jes\u00fas; Rivera P\u00e9rez, Clara In\u00e9s; Antonio G\u00f3mez, Augusto", "title": "Implicaciones sismotect\u00f3nicas de las soluciones mecanismo focal de algunos terremotos de la regi\u00f3n central de Colombia", "date": "2001", "keywords": "central; colombia; con; del; desplazamiento; direcci6n; entre; esfuerzos; esta; este; estudio; falla; figura; focal; las; los; mecanismo; para; placa; plano; por; que; region; terremotos; una", "summary": "Esta compresi6n ha sido la causa de la generaci6n de los sistemas de Falla generalmente de tipo inverso en el territorio colombiano, mientras que la ocurrencia del evento 20 a profundidad intermedia y su condici6n de es- fuerzos puede interpretarse como un estado causado por el material litosferico que es empujado por debajo de la corteza desde el SW Este mecanismo focal esta soportado por el desplazamiento del Bloque Andino que es movido en direcci6n NE como resultado de las colisiones recientes o acreciones tect6nicas entre la Fosa de Carnegie y el continente suramericano. 1986-IH-29 9:48:55.6 17. 1990-1-10 2:57:50.7 Es sabido que en la zona de transici6n del continente al oceano del territorio colombiano ocurre la interacci6n de gran des elementos litosfericos, yen correspondencia con la teorfa de la tect6nica de placas,", "mime": "application/pdf"}, {"id": "esrj-31291", "words": "3375", "extension": ".pdf", "flesch": "53", "author": "Vargas Jim\u00e9nez, Carlos A.; Monsalve, Hugo; Berm\u00fadez, Mar\u00eda L.; Cuenca, Julio C.", "title": "Utilizaci\u00f3n de redes neuronales para la determinaci\u00f3n de respuestas de sitio a partir de Ondas coda Aplicaci\u00f3n para Armenia Colombia", "date": "2001", "keywords": "coda; como; componentes; con; figura; las; los; neuronal; ondas; para; partir; que; red; sitio; una", "summary": "donde P;j son parametres de la conexi6r. la confiabilidad de la coda normalizada para encontrar amplificaciones de sitio relativas y compararlas con medidas a partir de ondas directas.", "mime": "application/pdf"}, {"id": "esrj-31292", "words": "5717", "extension": ".pdf", "flesch": "49", "author": "Ladino Parra, Rosa Ang\u00e9lica; Figueredo B\u00e1ez, Yaqueline; Vald\u00e9s Meneses, Emna Mireya", "title": "Estudio de la variaci\u00f3n solar quieta para el observatorio geomagn\u00e9tico de F\u00faquene", "date": "2001", "keywords": "actividad; analisis; cada; campo; cmt; como; componentes; con; datos; del; fuquene; horarios; las; los; magnetico; medios; modelo; nivel; observatorio; para; por; que; quieta; solar; son; terrestre; una; valores; variacion", "summary": "Teniendo en cuenta los tres criterios mencionados, los dfas de cada mes se ordenan en forma ascendente y los de Kp menor corresponden a los dfas quietos. El analisis de la variacion solar quieta Sq observada y la variaci6n solar quieta Sq teorica en los tres niveles de actividad solar (alta, me- dia, baja)", "mime": "application/pdf"}, {"id": "esrj-31293", "words": "3568", "extension": ".pdf", "flesch": "58", "author": "Sanchez S., Sandra Esperanza; Brice\u00f1o G., Luis Alberto", "title": "Sondeos electromagn\u00e9ticos inductivos: Teor\u00eda, m\u00e9todo y aplicaci\u00f3n", "date": "2001", "keywords": "campo; conductividad; contraste; del; figura; las; los; para; por; profundidad; que; una", "summary": "Fase del campo magnetico vertical en funci6n de la altura de la intrusion. Las Ifneas continuas representan el campo prirnario y las punteadas el campo secundario 40 muchos casos la respuesta de la intrusion se ve afectada par laconductividad del medio encajante que apantalla tanto el campo primario como el secun- dario.", "mime": "application/pdf"}, {"id": "esrj-31294", "words": "4332", "extension": ".pdf", "flesch": "47", "author": "Vargas Jim\u00e9nez, Carlos A.; Hincapie, Jaime Le\u00f3n; Rincon Botero, Sergio", "title": "Estaci\u00f3n digital sismol\u00f3gica port\u00e1til sobre telefon\u00eda m\u00f3vil celular e Internet", "date": "2001", "keywords": "adquisicion; captura; como; con; cual; datos; del; estaci6n; este; eventos; figura; internet; las; los; modo; para; por; que; real; ruido; sae; sistema; tiempo; una", "summary": "En el diseiio la seleccion de dispositivo de acuerdo con el bloque de memoria de acceso actual se realiza mediante dispositivos logicos programables (PLD). Por ejemplo, es posible ajustar 0 consultar la ganancia y el modo (unipolar, bipolar) para cada canal, aSIcomo la fecha y hora en el reloj de tiempo real, la temperatura de la tarjeta, y adernas se pueden solicitar los modos de trabajo de acuerdo con el tipo de adquisici6n (perdida de ran go, captura de ge6fonos, captura peri6dica de los canales, 49 captura continua de n rnuestras).", "mime": "application/pdf"}, {"id": "esrj-31295", "words": "2834", "extension": ".pdf", "flesch": "51", "author": "Montes Vides, Luis Alfredo", "title": "La teor\u00eda del rayo paraxial en la sismica de pozo: Aproximaci\u00f3n de segundo orden en los tiempos de tr\u00e1nsito", "date": "2001", "keywords": "del; las; los; por; pozo; que; rayo; superficie; tiempos; transite", "summary": "YSP, un rayo paraxial viajara desde cualquier punto en la superficie de la Tierra, en la cercania del rayo central, hasta un detector situado dentro del pozo que coincida -I 0-con una superficie reflectora en particular, en cuyo caso X = yel tiempo de viaje sera segun la ecuaci6n (7). Una de ell as es la funci6n caracterfstica que estima los tiempos de transite de eventos VSP de fuentes situadas en la cercanfa de la boca del pozo, la cual puede ser conocida nurnericarnente a partir de la medici6n de al men os seis tiempos de transite apropiadamente seleccionados.", "mime": "application/pdf"}, {"id": "esrj-31315", "words": "1898", "extension": ".pdf", "flesch": "51", "author": "Castillo L\u00f3pez, Luis Antonio", "title": "Migraci\u00f3n mediante apilado por difracci\u00f3n en medios con gradiente constante de velocidad", "date": "2001", "keywords": "algoritmo; con; datos; del; para; por; una; velocidad", "summary": "es el operador de la derivada anti-causal de medio tiempo, que corresponde en el dominio de la frecuencia al filtro ,- iOJ . Este resultado es muy importante en el sentido de que el algoritmo es rapido, estable y se ajusta para ser usado para migraci6n con amplitudes verdaderas.", "mime": "application/pdf"}, {"id": "esrj-31378", "words": "3575", "extension": ".pdf", "flesch": "49", "author": "Vargas-jim\u00e9nez, Carlos A.; Castellanos, G.; Fl\u00f3rez, J. A.; G\u00f3mez, J. P.", "title": "Adquisici\u00f3n, registro y transmisi\u00f3n en tiempo real de se\u00f1ales sismol\u00f3gicas bajo TCP/IP", "date": "2001", "keywords": "adquisici6n; como; con; datos; del; dma; esta; evento; frecuencia; las; los; lta; para; por; que; real; red; sefiales; servidor; sistema; tcp; tiempo; una", "summary": "El DMA acnia como una unidad de procesa- miento secundaria, toma el control de los buses de datos, direcciones y GEOFlslCA Ejemplos de promedios STA/LTA y activacion de disparos TRANSMISION EN UN ENTORNO DE RED EN TIEMPO REAL EI auge de Internet y las intranets ha convertido a TCP/IP en el protocolo de comunicaciones mas ampliamente usado en las redes de computadores a nivel mundial.", "mime": "application/pdf"}, {"id": "esrj-31379", "words": "3372", "extension": ".pdf", "flesch": "47", "author": "Montano Mej\u00eda, Felix Humberto", "title": "Observaci\u00f3n y an\u00e1lisis de la variaci\u00f3n de par\u00e1metros geof\u00edsicos de un pozo ubicado en el piedemonte llanero", "date": "2001", "keywords": "analisis; colombia; con; datos; del; estacion; figura; las; local; los; para; piedemonte; por; pozo; que; remota; sev; una; universidad", "summary": "y definen el Iimite entre rocas paleozoicas y cretacicas de la cordillera y los estratos menos perturbados del Terciario y Cuatemario que infrayacen en los Llanos Orientales, al este de la cordillera. Presenta como resultados en pantalla la seiial lefda, el variograma de los datos elegidos, la seiial filtrada, el valor maximo, minimo y el promedio de la seiiallefda.", "mime": "application/pdf"}, {"id": "esrj-31380", "words": "5571", "extension": ".pdf", "flesch": "52", "author": "Vega V., Pedro A.", "title": "Dise\u00f1o e implementaci\u00f3n de un sistema de adquisici\u00f3n de datos sismol\u00f3gicos en tiempo real", "date": "2001", "keywords": "adquisici6n; amplificador; amplitud; bobina; como; con; cual; datos; del; dos; entrada; esta; este; figura; frecuencia; las; los; masa; mesa; national; para; por; puede; que; real; respuesta; ruido; sensor; ser; sistema; software; tiempo; una", "summary": "Una descripci6n cuantitativa de esta caracteristica pasa altos, que re- laciona el desplazamiento de la masa con el desplazamiento del suelo ~ especialrnente entre los extremos En la practica, sin embargo, la precisi6n es usualmente pobre por fuera de la banda de frecuencias comprendidas entre 0.5 y 5 Hz.", "mime": "application/pdf"}, {"id": "esrj-31396", "words": "1771", "extension": ".pdf", "flesch": "57", "author": "Quintana, Robinson; C\u00e9spedes, Sandra; Ghisays, Alfredo; P\u00e9rez, Gabriel; Montes, Luis", "title": "Efecto de la rugosidad del terreno en las secciones s\u00edsmicas: modelamiento por elementos finitos", "date": "2002", "keywords": "capa; del; elementos; las; onda; por; que; somera; una", "summary": "La estabilidad de la solucian mediante elementos finitos requiere que las dimensiones de la grilla del modelo satisfa- En uno de los nodos de la grilla, se coloco la fuente en tiern- po cero (en este caso una ondicula de Ricker); luego, un program a desarrollado en c++ bajo Diffpack (Langtangen, 1996) calcula eI campo de onda en todos los elementos para cada intervalo de mues- treo.", "mime": "application/pdf"}, {"id": "esrj-31397", "words": "4653", "extension": ".pdf", "flesch": "49", "author": "Castilla, Raymi A.; Audermard M., Frank A.; Rodr\u00edguez, Jos\u00e9 Antonio", "title": "Amenaza sismica por m\u00e9todo determinista en el tri\u00e1ngulo de fallas Valera-Bocon\u00f3-Oca en el occidente de Venezuela", "date": "2002", "keywords": "amenaza; cada; catalogo; como; con; datos; del; esta; fallas; figura; las; los; manera; mas; para; por; que; red; sismica; sismicidad; sismos; una; valor; venezuela", "summary": "La figura 8 muestra la distribucion de la sismici- dad en la zona de estudio, evidenciando la ocurrencia de eventos dispersos, no necesariamente asociados de manera directa a las es- tructuras mayores. En eI caso de la figura 9 se tomaron en cuenta solo las magnitudes de los sismos maximos creibles asignados a cada segmento de falla (Audemard, . 2000).", "mime": "application/pdf"}, {"id": "esrj-31399", "words": "5238", "extension": ".pdf", "flesch": "63", "author": "Molina P., C. Indira; Ru\u00edz, Mario C.", "title": "Cambios temporales del valor de b: \u00bfPosibles correlaciones con la actividad hidrotermal del volc\u00e1n Tungurahua?", "date": "2002", "keywords": "actividad; altos; con; de b; del; diciembre; energia; entre; las; los; magnitud; mas; para; por; que; ser; una; valor; valor de; valores; volcan", "summary": "En contraste, la baja correspondencia entre las va- GEOFislCA COLOMBIANA, 6, OICIEMBRE DE 2002 riaciones del pH y la conductividad con el valor de b podria ser el resultado de la baja confiabilidad de las mediciones 0 ser indicativo que el efecto de la excitacion magmatica subsiste despues de un corto periodo de calma 0 intensa actividad. FACTORES QUE INFLUYEN EN EL VALOR DE b Entre los factores que pueden alterar el valor de b se encuentra el cambio en la heterogeneidad del material, es decir, que el valor de b aumenta proporcionalmente con la heterogeneidad y densidad de grietas en la roca.", "mime": "application/pdf"}, {"id": "esrj-31400", "words": "2294", "extension": ".pdf", "flesch": "52", "author": "Grosso, Virginia; Daga, Romina; Sagripanti, Guillermo; Villalba, Diego", "title": "Monitoreo de emisiones de gas rad\u00f3n vinculado a la actividad micros\u00edsmica en la zona de Sampacho, C\u00f3rdoba, Argentina", "date": "2002", "keywords": "con; cordoba; del; emisiones; gas; las; los; para; por; que; radon", "summary": "Las fluctuaciones en algunos parametres fisicos de las rocas pueden utilizarse como geoindicadores precursares en areas bajo amenaza, como modificaciones de la velocidad de la onda sismica P, deformaciones y basculamiento de la superficie, variacion de la resistividad electrica de los materiales, aumento en la ocurrencia de microsismos y modificaciones en las emisiones del gas Radon (Bolt, 1981). El objetivo del presente trabajo es monitorear las emisiones de gas radon para establecer su vinculo con la actividad micro- sismica en proximidades de una seccion de la falla activa Las Lagunas, por medio de la aplicacion de la tecnica del Track-Etch, e intentar establecer un geoindicador precursor de sismos para la misma.", "mime": "application/pdf"}, {"id": "esrj-31401", "words": "3064", "extension": ".pdf", "flesch": "52", "author": "C\u00e9spedes, Sandra; Quintana, Robinson; Ghisays, Alfredo; P\u00e9rez, Gabriel; Montes, Luis", "title": "Dispersi\u00f3n s\u00edsmica por presencia de capas someras de alta velocidad: modelamiento con diferencias finitas", "date": "2002", "keywords": "alta; capas; con; del; figura; informacion; las; los; modelo; onda; para; por; que; sismica; someras; una; velocidad", "summary": "Los tiempos de arribo de estas reflexiones presentan distorsiones como consecuen- cia de la geometria de la cap a somera de alta velocidad, distorsiones que pueden ser corregidas por procesamiento convencional, como correcciones estaticas a un nivel. urnax En donde 111 es el intervalo de muestreo en tiempo, I1x es el tamafio de la celda y um., es el valor maximo de la velocidad de propaga- ci6n de las ondas en el modelo.", "mime": "application/pdf"}, {"id": "esrj-31402", "words": "4627", "extension": ".pdf", "flesch": "55", "author": "Duran, Juan P.; Vargas, Carlos A.; Brice\u00f1o, Luis A.", "title": "An\u00e1lisis espacial y temporal de Q-Coda en el Piedemonte Llanero (Colombia)", "date": "2002", "keywords": "anomalia; atenuaci6n; coda; como; con; de qc; del; entre; fractal; las; los; medio; ondas; para; por; que; temporal; tiempo; una; valor", "summary": "Las variaciones relativas de D, muestran una tendencia de la dis- minuci6n de la dimensi6n fractal antes de la ocurrencia de un gran evento; por tanto, los valores de Qc se agrupan en el tiempo. Por otro lado, la variac ion temporal de los minimos valores de Qc (maximas atenuaciones) se correlaciono cualitativamen- te con sismos de magnitud mayor de 3.5 y, adernas, se cuantifico la distribucion temporal de Qc par medio de la dimension fractal, mostrando que la agrupacion de los valores minimos de Qc aumenta antes de la ocurrencia de un evento principal y de- crece su agrupacion despues de la ocurrencia del even to principal.", "mime": "application/pdf"}, {"id": "esrj-31403", "words": "4627", "extension": ".pdf", "flesch": "55", "author": "Huerfano Moreno, Victor A.", "title": "Determinaci\u00f3n de mecanismos focales para temblores peque\u00f1os \u00f3 moderados: regi\u00f3n del Caribe Nororiental", "date": "2002", "keywords": "anomalia; atenuaci6n; coda; como; con; de qc; del; entre; fractal; las; los; medio; ondas; para; por; que; temporal; tiempo; una; valor", "summary": "Las variaciones relativas de D, muestran una tendencia de la dis- minuci6n de la dimensi6n fractal antes de la ocurrencia de un gran evento; por tanto, los valores de Qc se agrupan en el tiempo. Por otro lado, la variac ion temporal de los minimos valores de Qc (maximas atenuaciones) se correlaciono cualitativamen- te con sismos de magnitud mayor de 3.5 y, adernas, se cuantifico la distribucion temporal de Qc par medio de la dimension fractal, mostrando que la agrupacion de los valores minimos de Qc aumenta antes de la ocurrencia de un evento principal y de- crece su agrupacion despues de la ocurrencia del even to principal.", "mime": "application/pdf"}, {"id": "esrj-31404", "words": "2107", "extension": ".pdf", "flesch": "55", "author": "Mora-P\u00e1ez, Hector; Trenkamp, Robert; Kellogg, James; Freymueller, Jeff; Droonez-Villota, Milton", "title": "Resultados del uso de geodesia satelital para estudios geodin\u00e1micos en Colombia", "date": "2002", "keywords": "con; del; focales; las; los; para; puerto; que; rico; una; zona", "summary": "Si la respuesta instrumental es conocida mediante las tab las de calibracion y el conjunto de polos y ceros, y se tiene un modelo rea- Iista de la velocidad de propagacion de las ondas de cuerpo, al me- nos en las capas superiores, la ecuacion (I) depende solo de !a funcion de la fuente. Azi. PI. t\u00ab 2002/09/07 3.5 18.079 -66.074 294 60 168 120 10 2 2002/09/06 3.6 18.135 -66.808 10 280 82 96 152 80 41 ViCTOR A. HUERFANO MORENO RESULTADOS Este rnetodo permite determinar cinco parametres: la profundidad focal, elmomento escalar y la geometria de la falla (azimuth, angu- 10 de hechado y angulo de desgarre).", "mime": "application/pdf"}, {"id": "esrj-31405", "words": "5546", "extension": ".pdf", "flesch": "59", "author": "G\u00f3mez Capera, Augusto Antonio; Salcedo Hurtado, Elkin de Jes\u00fas", "title": "Leyes de atenuaci\u00f3n de la intensidad macros\u00edsmica en Colombia", "date": "2002", "keywords": "atenuacion; coeficiente; colombia; como; con; datos; del; distancia; energia; fuente; intensidad; isosistas; las; los; macrosismica; onda; para; por; profundidad; que; sismica; sismos; territorio; una; viii", "summary": "La componente espacial de la amplitud para un armonico mono- cromatico amortiguado esta dado por (Landau y Lifshitz, 1985; Sa- varensky,1975): (1) Donde Ao es la amplitud de la onda en la fuente 0 foco; res la distan- cia de la fuente a un punto sobre la superficie de la tierra; a es el coeficiente de dispersion; a' es el coeficiente de absorcion por disi- pacion no elastica, de tal manera que a = a + a', siendo a el coe- ficiente de amortiguamiento de la onda armonica rnovil; n = -I para Es decir, se ha considera- do obtener leyes de atenuacion de la intensidad sismica que se ajus- ten a sismos que ocurren en la parte mas superficial de la corteza, otro rango que abarque estos prim eros y los que ocurren hasta la profundidad de la base de corteza terrestre en el territorio nacional y, por ultimo, para sismos del manto superior.", "mime": "application/pdf"}, {"id": "esrj-31407", "words": "1753", "extension": ".pdf", "flesch": "45", "author": "Figueredo Baez, Yaqueline; D\u00edaz Campos, Ramiro Le\u00f3n", "title": "Optimizaci\u00f3n en la soluci\u00f3n del problema inverso en geof\u00edsica usando el algoritmo de entrenamiento supervisado de Levenberg-Marquardt", "date": "2002", "keywords": "con; del; las; los; que; superficie; una; velocidad", "summary": "Geofisica Colombiana N\u00b0 6 pp 62-65 diciembre de 2002 Bogota, D,C, ISSN - 0121 - 2974 Solucion a un problema estatico en un area con topografia abrupta usando una velocidad de reemplazamiento variable ------------------' LUIS ANTONIO CASTILLO LOPEZ Profesor Asociado, Universidad Nacional de Colombia, Curso posgrado en Geofisica e-mail: ic as tillo gacie n c ia s run a l.e d u co CARLOS PEDRAZA Analista Senior, Petroseis t tc a. RESUMEN Teniendo en cuenta que para poder obtener una buena imagen del subsuelo, es necesario que las soluciones estaticas sean las mas acertadas posibles en la etapa inicial del procesamiento, y no gastar tiempo en ensayos con procesos mas sofisticados, sin tener resuelto el problema estatico, se propone implantar un metodo de procesamiento usando un modelo de velocidad de reemplazamiento variable en el calculo de la soluci6n estatica, Se pretende explicar que el valor de la velocidad de reemplazamiento influye notoriamente en la imagen de la estructu- ra, la cual puede verse deformada en gran rnagnitud. La velocidad de la segunda capa es cornunmente usada para", "mime": "application/pdf"}, {"id": "esrj-31408", "words": "2767", "extension": ".pdf", "flesch": "59", "author": "Piedrahita, Carlos; Salinas, Trino; Guevara, Sa\u00fal", "title": "Modelamiento s\u00edsmico utilizando teor\u00eda de rayos en medios transversalmente isotr\u00f3picos: teor\u00eda y ejemplos", "date": "2002", "keywords": "c33; como; con; este; figura; las; los; modelo; onda; para; que; rayos; simetria", "summary": "El objetivo de este experimento es observar las diferencias entre ese mismo modelo cuando los materiales son isotropicos y anisotropicos, En particular, se analiza la anisotropia en dos casos: cuando el angulo de simetria de todos los bloques es 0 grados y cuando el angulo de simetria es +40 grados, respectivamente. En el presente trabajo hacernos un resumen de las propiedades basicas de un medio rransversalrnente isotropico (TI).", "mime": "application/pdf"}, {"id": "esrj-31409", "words": "1753", "extension": ".pdf", "flesch": "45", "author": "Castillo L\u00f3pez, Luis Antonio; Pedraza, Carlos", "title": "Soluci\u00f3n a un problema est\u00e1tico en un \u00e1rea con topograf\u00eda abrupta usando una velocidad de reemplazamiento variable", "date": "2002", "keywords": "con; del; las; los; que; superficie; una; velocidad", "summary": "Geofisica Colombiana N\u00b0 6 pp 62-65 diciembre de 2002 Bogota, D,C, ISSN - 0121 - 2974 Solucion a un problema estatico en un area con topografia abrupta usando una velocidad de reemplazamiento variable ------------------' LUIS ANTONIO CASTILLO LOPEZ Profesor Asociado, Universidad Nacional de Colombia, Curso posgrado en Geofisica e-mail: ic as tillo gacie n c ia s run a l.e d u co CARLOS PEDRAZA Analista Senior, Petroseis t tc a. RESUMEN Teniendo en cuenta que para poder obtener una buena imagen del subsuelo, es necesario que las soluciones estaticas sean las mas acertadas posibles en la etapa inicial del procesamiento, y no gastar tiempo en ensayos con procesos mas sofisticados, sin tener resuelto el problema estatico, se propone implantar un metodo de procesamiento usando un modelo de velocidad de reemplazamiento variable en el calculo de la soluci6n estatica, Se pretende explicar que el valor de la velocidad de reemplazamiento influye notoriamente en la imagen de la estructu- ra, la cual puede verse deformada en gran rnagnitud. La velocidad de la segunda capa es cornunmente usada para", "mime": "application/pdf"}, {"id": "esrj-31410", "words": "454", "extension": ".pdf", "flesch": "16", "author": "Montes Vides, Luis Alfredo", "title": "Nota editorial", "date": "2003", "keywords": "los; que", "summary": "Recibimos con beneplacito la propuesta de creacion de una carrera de estudios de pregrado en geofisica por parte de! departamento de geociencias de la Universidad Nacional de Colombia, la cual sera bien recibida por parte de la industria y de los circulos intelectuales del pais, por su natu- raleza innovadora ante los retos que asume frente a la sociedad y la comunidad cientifica. Henos un afio despues, nuevamente aqui, con la publicacion del septimo numero de la revista Geofisica Colombiana, en la cual, con gran teson y mediante el esfuerzo encomiable de investiga- dores latinoamericanos de las ciencias de la tierra, presentamos a la comunidad cientifica los resul- tados de investigaciones en los campos de la geofisica.", "mime": "application/pdf"}, {"id": "esrj-31412", "words": "5452", "extension": ".pdf", "flesch": "58", "author": "G\u00f3mez, Ernesto; Castillo L\u00f3pez, Luis Antonio", "title": "Actividad de la falla la salina a partir de instrumentaci\u00f3n sismol\u00f3gica", "date": "2003", "keywords": "actividad; area; chucuri; como; con; del; dentro; entre; estudio; eventos; falla; figura; las; los; para; por; proyecto; que; red; rio; salina; sismicidad; sismos; sogamoso; una", "summary": "Si tomamos valores promedio de Vp = 5.5 km/s y Vs = 3.10 km/s (con Vs ' 0.58 Vp), entonces una diferencia de tiempo de arribo de la Fase P y de la S, P - S Mientras que en el sector de la flexion del Chucuri se presentan 22 eventos sismicos asociados a los principales trazos de la flexion que se ha denominado como falla del Chucuri 0", "mime": "application/pdf"}, {"id": "esrj-31413", "words": "4153", "extension": ".pdf", "flesch": "45", "author": "Ochoa Guti\u00e9rrez, Luis Hern\u00e1n", "title": "Evaluaci\u00f3n magnetom\u00e9trica, radiom\u00e9trica y geoel\u00e9ctrica de dep\u00f3sitos esmerald\u00edferos", "date": "2003", "keywords": "anomalias; colombia; como; con; cps; del; depositos; entre; esmeraldas; estudio; interes; las; los; lutitas; macanal; mayor; mediante; metodos; para; por; presencia; que; sitios; una; zonas", "summary": "vesar el coluvi6n y encontrar la zona de mineralizacion, Las dimensiones de 15 a 20 ern de ancho y 65 metros de lon- gitud de las venas mineralizadas comparadas con las dimensiones de las zonas albitizadas 0 de alteracion que pueden tener varios metros sugiere que no es factible detectar las venas con precision, justificando la exploracion de las estructuras favorables (falIas) y las zonas de alteracion como primera fase prospectiva, debido a que para la escala del presente trabajo no se pretende detectar venas de dimensiones muy pequeiias, sino simplemente las mani- festaciones de las zonas de mineralizacion, La presencia de pirita, incluso en venas de zonas improduc- tivas, hace que las anomalias encontradas originadas por la pre- sencia de esta Esta caracteristica la presenta la pirita, dentro de las zonas de interes mencionadas.", "mime": "application/pdf"}, {"id": "esrj-31415", "words": "2375", "extension": ".pdf", "flesch": "57", "author": "D\u00edaz Campos, Ramiro Le\u00f3n; D\u00edaz, Leonardo; Figueredo B\u00e1ez, Yaqueline", "title": "Modelo integrado de informaci\u00f3n gravim\u00e9trica, geol\u00f3gica y de terrenos para los perfiles: Turbo - San Jose del Guaviare y Quibd\u00f3 - Puerto Berrio", "date": "2003", "keywords": "con; cordillera; corteza; del; falla; las; los; perfil; romeral; terrenos; una", "summary": "Entre los dos perfiles se encuentra un punto de inflexi6n en el rumbo de la falla de Romeral a partir del cual se presentan cambios importantes en las componentes de acrecion y de csfuerzos, dando origen a variaciones considera- bles en el modelo de subducci6n. FIGUEREDO BAEZ Grupo de investigaci6n en Geofisica, Departamento de Geociencias, Universidad Nacional de Colombia, e-mail: rldiaz@unal.edu.co RESUMEN EI modelo estructural de la zona de estudio se genera a partir de la integraci6n de la informaci6n gravimetrica, la geologia re- gional y terrenos tectono-estratigraficos, Se analizan dos perfiles AA' (Turbo - San Jose del Guaviare)", "mime": "application/pdf"}, {"id": "esrj-31416", "words": "3948", "extension": ".pdf", "flesch": "42", "author": "Romina, Daga; Grosso, Virginia; Sagripanti, Guillermo; Villegas, Monica; Villalba, Diego", "title": "Caracterizaci\u00f3n preliminar de la susceptibilidad s\u00edsmica en el entorno de la localidad de Sampacho, C\u00f3rdoba, Argentina", "date": "2003", "keywords": "area; argentina; como; con; cordoba; del; esta; estudio; finos; freatico; las; localidad; los; materiales; nivel; para; por; preliminar; profundidad; que; region; sampacho; sismica; son; susceptibilidad; una; unidad", "summary": "En una region sismicamente activa, el desconocimiento de la posicion y comportamiento del nivel freatico y de la respuesta de los materiales que forman el subsuelo frente a una agitacion sismica puede generar graves dafios en las estructuras edilicias emplazadas en la zona, como es el caso de la poblacion en es- tudio. Geottsic a Colombiana N\u00b0 7 pp. 24-29 diciembre de 2003 Bogota, D.C. ISSN \u2022 0121 - 2974 Caracterlzacion preliminar de la susceptibilidad sismica en el entorno de la localidad de Sampacho, Cordoba, Argentina DAGA ROMINA VIRGINIA GROSSO GUILLERMO SAGRIPANTI MONICA VILLEGAS DIEGO VILLALBA Departamento de Geologia.", "mime": "application/pdf"}, {"id": "esrj-31417", "words": "2955", "extension": ".pdf", "flesch": "43", "author": "Guevara, Saul; Salinas, Trino; Piedrahita, Carlos", "title": "Efectos de las capas someras de alta velocidad en los datos s\u00edsmicos aplicados a la detecci\u00f3n de hidrocarburos", "date": "2003", "keywords": "alta; capas; caracteristicas; con; del; este; eventos; figura; las; los; modelamiento; modelo; ondas; para; por; que; una; velocidad", "summary": "Esta informaci6n es afectada generalmente por las capas someras, cu- yas caracteristicas distorsionan los datos provenientes de las capas de interes, usualmente mas profundas. Manuscrito recibido para evaluacon el 24 de julio de 2003.", "mime": "application/pdf"}, {"id": "esrj-31419", "words": "2874", "extension": ".pdf", "flesch": "46", "author": "Figueredo B\u00e1ez, Yaqueline; D\u00edaz, Ramiro", "title": "Estudio y simulaci\u00f3n de las deformaciones corticales asociadas a la variaci\u00f3n del campo gravitacional, usando redes neuronales artificiales", "date": "2003", "keywords": "campo; con; del; figura; las; los; modelo; para; por; problema; que; sistema; una", "summary": "Las ecuaciones de movimiento de un fluido viscoso que re- flejan el efecto de las fuerzas de presion y de gravedad son (Hans, 1981): (3) en donde EyeS La optimizacion utilizando la estructura cluster y de arquitectu- ra Hopfield son dos metodologias que permiten una buena con- vergencia, inc1uso para estructuras complicadas.", "mime": "application/pdf"}, {"id": "esrj-31421", "words": "3309", "extension": ".pdf", "flesch": "57", "author": "Moreno V., Francisco Javier; Montes Vides, Luis Alfredo", "title": "Caracterizaci\u00f3n de dep\u00f3sitos de suelo utilizando geo-radar", "date": "2003", "keywords": "como; con; del; dielectrica; entre; las; los; ondas; para; por; que; radar; subsuelo; suelo; una; velocidad", "summary": "La metodologia de investigaci6n fundarnentalmente consisti6 en medir la variaci6n de la velocidad de las ondas electrornagneticas como funci6n de la naturaleza del suelo, y de parametres como la humedad, la densidad y la resistividad. 42 medir la profundidad de la tabla de agua.", "mime": "application/pdf"}, {"id": "esrj-31422", "words": "3916", "extension": ".pdf", "flesch": "58", "author": "Serna Valencia, Doris Yaneth; Moran Rodr\u00edguez, Estela Catalina; Garz\u00f3n Valencia, Gustavo; Hern\u00e1ndez Silva, M\u00f3nica Lucia", "title": "Casos hist\u00f3ricos colombianos del registro de anomal\u00edas del rad\u00f3n-222 antes de eventos s\u00edsmicos de naturaleza tect\u00f3nica", "date": "2003", "keywords": "anomalias; antes; como; con; del; emisiones; estaciones; figura; gases; isotopicas; las; los; manizales; para; pasto; por; que; radon; radon-222; una", "summary": "La mayo ria de las estaciones de las redes isotopicas de losobser- vatorios de Ingeominas estan mal instaladas, y por esta razon se re- comienda iniciar con un proceso de evaluacion de los perfiles de los sue los donde se encuentran instaladas. TECTONICS INTRODUCCION Desde hace algunas decadas se han incorporado los estudios isoto- picos en el estudio de los trazos de falla y en la investigacion del estado de actividad tectonica de las mismas.", "mime": "application/pdf"}, {"id": "esrj-31423", "words": "3627", "extension": ".pdf", "flesch": "56", "author": "Alzate, Carlos; Castellanos, Germ\u00e1n", "title": "Detecci\u00f3n en l\u00ednea de onda-P en sismogramas 3-D utilizando redes neuronales", "date": "2003", "keywords": "capa; con; del; deteccion; detector; esta; funcion; las; lineal; los; onda; para; que; ruido; sefial; tiempo; una; valor", "summary": "ER i+N-lI (xl(n)2 +x2(n)2) 1/=; (1)i+-N II(Xl (n)2 +x2(n)2 +XJ (nf) t1=1 GEOFislCA COLOMBIANA, 7, DICIEMBR DE 2003 DETECCI6N EN LiNEA DE ONDA.P EN SISMOGRAMAS 3\u00b7D UTILIZANDO REDES NEURONALES donde X X2 YX3 son las tres componentes de la sefial sismica, N es el tamafio de la ventana. (9) son medidas discriminantes debido a que miden el grado de polarizacion de una serie de tiempo, y la onda-p es unaonda compresional que general mente esta pola- rizada de forma lineal.", "mime": "application/pdf"}, {"id": "esrj-31424", "words": "1946", "extension": ".pdf", "flesch": "45", "author": "Ortega Galvis, Carlos Augusto; Montes Vides, Luis Alfredo", "title": "Modelo de velocidades de intervalo en profundidad a partir de funci\u00f3n de difracci\u00f3n: aplicaci\u00f3n a datos reales", "date": "2003", "keywords": "con; del; intervalo; las; los; modelo; para; profundidad; que; tiempos; velocidad", "summary": "To = tiempo de transite de reflexion del rayo central (rayo normal) s; Ao= Matriz de curvatura de la onda cmp D~l Co = Matriz de curvatura de la onda normal La ecuacion (1) por simetria tiene nueve incognitas: una en Ta, dos en Po' tres en B~l Ao Y tres en D~lCO' las cuales pueden esti- marse registrando al menos nueve tiempos de transite, especial- mente seleccionados; para ella se toman los datos al menos en dos configuraciones de la sismica, en este caso Common mid point y zero offset (Montes, 2000). La estirnacion mediante la teoria paraxial de la funcion de tiempos de transito de difraccion a partir de los tiempos de transite de reflex ion permite calcular el valor de la velocidad de intervalo en profundidad, independiente de la complejidad geologica, la geometria del subsuelo y las variaciones de velo- cidad, y en consecuencia es de gran utilidad en los procesos de migracion en profundidad de las secciones sismicas.", "mime": "application/pdf"}, {"id": "esrj-31426", "words": "3658", "extension": ".pdf", "flesch": "49", "author": "Boh\u00f3rquez Q., Jes\u00fas G.; Montes, Luis A.", "title": "An\u00e1lisis de la amplitud referenciada con trayectorias de rayo y su aplicaci\u00f3n en AVO", "date": "2003", "keywords": "amplitud; analisis; avo; coeficientes; como; con; dos; entre; figura; interface; las; los; mas; modelo; offset; onda; para; por; que; rayo; reflexion; son; transmision; una", "summary": "TRA YECfORIAS DE RAYO Y SU APLlCACl6N EN AVO de las series de Taylor alrededor de un punto de la funcion para cada factor de la ecuacion (3), podemos escribir que: 1 Arp.l X ,t,,) Arp.i( X~ ,tn 1_ Arpl.i(X,,,,tl,,) Arp,,,.i(XI~,tl~)- WI - WI~ o - W o - Will El modelo de ajuste de la ecuacion (4) cuantifica y discrimina la velocidad de ondas-S, w, densidad, r, atenuacion por absorci6n y divergencia geometrica, K, y angulos de incidencia, t, dado un modelo inicial propuesto, que se calculo en este proyecto usando relaciones petrograficas empiricas. TEORIA La reflexi6n y transmision de ondas planas en un limite plano entre dos medios isotropicos son dos de los temas de estudio mas funda- mentales en la propagaci6n de ondas, La leyes que gobieman la reflexion y transmision de onda en el limite de dos medios se enfocan desde el punto de vista geome- trico 0", "mime": "application/pdf"}, {"id": "esrj-31427", "words": "1565", "extension": ".pdf", "flesch": "52", "author": "Castillo L\u00f3pez, Luis Antonio", "title": "True amplitude migration in constant gradient velocity media", "date": "2003", "keywords": "amplitude; depth; gradient; migration; ray; velocity", "summary": "After data input, two-dimensional diffraction stack operator can be written following the expression given by Urban (1999), based on Martins et al. (1998) 72 Seismogram Distance o 0 5 (Km) I 1.5 2 I -i------=+=~~~_rT'-i-r-,....,...,~.,....,..-,--L----___+ E 0.5 -I------+-++-I-++-;.+:~~F.l=m!-'l-+-----____+ f.== O-l------J-LLLLLLLLLj...LJLULU--'--'--'--,------t Ray trajectories in constant gradient velocity media with commom shot configuration o r-~-----''''-'-T'T'rr-rT'CrroCT>--rT..--.rrr~~~---' vO=2kml 0.2 I GEOFiSIGA GOLOMBIANA, 7, OIGIEMBRE DE 2003 TRUE AMPLITUDE MIGRATION IN CONSTANT GRADIENT VELOCITY MEDIA 1.9,----,------,-----,,---,---r----,--,.--...., 1.85r\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7 ,........... T\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7, L ;..............,................ ~ ~ 1.8 r\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7 .j ,........... , , ,...........w, ,..,?<. , ~ ~ 1.75 r\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7,\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7 ',....... ; ; ; \u00b7\u00b7\u00b7\u00b7:<'A::\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7L ~ ;:: 1.7 r\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7+\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7f.-:~~==~4:\u00b7\u00b7\u00b7w! .].", "mime": "application/pdf"}, {"id": "esrj-31428", "words": "3102", "extension": ".pdf", "flesch": "66", "author": "Vargas J., Carlos A.; Cuenca S., Julio C.", "title": "Application of neural networks to obtain the site response in Mexico City", "date": "2003", "keywords": "city; figure; mexico; network; records; response; rock; site; soil", "summary": "Some techniques were inspired in the capacity of coda waves or ambient tremors to denote changes of stiffness or attenuation of seismic energy, others were based in physical models under visco-elastic conditions in terrain with lateral homogeneity (Borcherdt, 1970; Su et al., 1992; Field and Jacobi, 1993; Kato et al., 1995; Su and Aki, 1995; Steidl et al., 1996; Mucciarelli, 1998; Rielpl et al., 1998; Geofisica Colombiana N\u00b0.7 pp.74-78 dlciembre de 2003 Bogoli\\, D.C. ISSN - 0121 - 2974 Application of neural networks to obtain the site response in Mexico city CARLOS A. VARGAS J. Universidad Nacional de Colombia, Bogota, Grupo de Geofisica, cavargasj@unal.edu.co JULIO C. CUENCA S. Instituto de Ingenieria, UNAM, Mexico, D. E, Mexico, jccsa@pumas.iingen.unam.mx RESUMEN Hemos implementado una red neuronal de tres capas escondidas con 40 neuronas por capa para ser usada como funciones de trasferencia suelo/roca en dos estaciones acelerornetricas en Ciudad de Mexico.", "mime": "application/pdf"}, {"id": "esrj-31429", "words": "1873", "extension": ".pdf", "flesch": "62", "author": "Geof\u00edsica, Colombiana", "title": "First Latin American Congress of Seismology", "date": "2011", "keywords": "american; congress; seismology; tables; text; use; word", "summary": "Tupe sizes for camera-ready papers Appearance Regular Bold Italic Section titles, tables, table 80r 9 names a, figure captions, text subscripts and supers- cripts,references, footnotes 9 Abstract Abstract Authors' affliations, main 10 text, equations, first letter in Subheading section titles a, first letter in table names a 12 Authors' names 14 Title of Paper PaperTitle ------, a capital letters GEOFlslCA COLOMBIANA, 7, OICIEMBRE OE 2003 FIRST LATIN AMERICAN CONGRESS OF SEISMOLOGY Nazca Earthquake Camacho Record Instituto Geofisico del Peru 0.00 r---,------,-----,------,---r---,----,------..,.------, 0.20 +-----+---1-- 0,00 . Figure captions should be below the figures; table names and table captions should be above the tables.", "mime": "application/pdf"}, {"id": "esrj-33591", "words": "3696", "extension": ".pdf", "flesch": "0", "author": "Shandini, Yves; Tadjou, Jean Marie", "title": "Interpreting gravity anomalies in south Cameroon, central Africa", "date": "2012", "keywords": "anomaly; area; bouguer; cameroon; data; gravity; map; south; study", "summary": "Isostatic residual Bouguer gravity map of the study area Interpreting gravity anomalies in south Cameroon, central Africa 9 metric gradient led to identifying the main faults responsible for structur- ing the studied area and so obtaining indications regarding their dip The study area was characterised by one gravity anomaly in the south charac- terised by having a long wavelength and high anomaly expression in the north Low gravity anomaly expression was associated with granite intru- sions while high gravity anomaly expression was associated with basement outcrop These two areas were separated by a pronounced E-W lineament recognised on both Bouguer and isostatic residual gravity maps and was interpreted as being a basement fault references Abdelsalam, M G , Li\u00e9geois, J P and R J Stern (2002): The Saharan meta- craton Journal of African Earth Sciences, 34, 119\u2013136 Archibald, N and F Bochetti (1999): Multiscale edge analysis of potential field data Explor Geophys , 30, 38-44 Blakely, R J and R W Simpson (1986): Map showing the distribution of interpreted gravity faults in the area being studied Arrows indicate dip direction figure 5.", "mime": "application/pdf"}, {"id": "esrj-33791", "words": "2240", "extension": ".pdf", "flesch": "42", "author": "Yousefirad, Mostafa", "title": "Using conodont elements to distinguish Permian-Triassic boundary disconformity near Haftad Gholleh, central Iran", "date": "2013", "keywords": "biozone; boundary; conodont; hindeodella; iran; permian; triassic; view", "summary": "Pachycladina oblique (Staesch), posterior view, X90, early Triassic (early Triassic) - 1 Sweetognathus whitei (Rhodes), lateral view, X80, middle Permian (Guadalupian) - 2 Hindeodella nevadensis (Muller), lateral view, X80, early Triassic (early Triassic) - 3 Hindeodus minutes (Ellison), lateral view, X80, upper Permian - 4 Hindeodella multihamata (Huckriede), lateral view, X95, middle Triassic (Anisian) - 5 Chirognathus sp., lateral view, X80, early Triassic (Scythian) - 6 Neostreptognathodus pequopensis (Behnken), outer view, X80, upper Permian - 7 Ligonodina triassica (Muller), lateral view, X80, early Triassic (early Triassic) - 8 Enantiognathus bitortus (Bender), outer view, X120, early Triassic (early Triassic) - 9 - 10 Hindeodella triassica (Muller), lateral view, X80, middle Permian - lower Triassic - 11 Hindeodus excavatus (Behnken), lateral view, X150, middle Permian (Guadalupian) - 12 Streptognathus barskovi (Kozur), lateral view, X80, middle-upper Per- mian - 13 Xaniognathus sp., lateral view, X80, lower Triassic - 14 Prioniodella prioniodellides (Tatge), lateral view, X120, middle Triassic (Anisian) - 15 Lonchodina nevadensis (Muller), lateral view, X110, early Triassic (early Triassic) - 16 Merrillina divergens (Bender & Stopple), lateral view, X80, (Guada- lupian) - 17 Parachirognathus geiseri (Clarck), lateral view, X95, (early Triassic - Anisian) - 18 Ellisonia triassica (Muller), lateral view, X80, early Triassic (early Trias- sic). Studied section near Haftad Gholleh Using conodont elements to distinguish Permian Triassic boundary disconformity near Haftad Gholleh, central Iran Figure 4.", "mime": "application/pdf"}, {"id": "esrj-33792", "words": "5101", "extension": ".pdf", "flesch": "44", "author": "Shemang, E M; Molwalefhe, L N; Mickus, K", "title": "Applying DC resistivity imaging to investigating the relationship between water quality and transpiration beneath circular islands in the Okavango Delta, Botswana: a case study of Thata Island", "date": "2013", "keywords": "borehole; botswana; centre; data; delta; figure; groundwater; imaging; island; okavango; resistivity; saline; salinity; surface; thata; water", "summary": "Applying DC resistivity imaging to investigating the relationship between water quality and transpiration beneath circular islands in the Okavango Delta, Botswana: a case study of Thata Island The depressed interior of the islands consists of bare soil having crusts of trona at the centre, precipitating from island groundwater because of evapotranspiration enrichment (McCarthy et al., 1991; McCarthy and Ellery, 1994) and may thus support only high salinity tolerant grasses. ERI results revealed that fresh water overlay saline water in the swamps.", "mime": "application/pdf"}, {"id": "esrj-33796", "words": "2773", "extension": ".pdf", "flesch": "44", "author": "Zamora Hernandez, Abigail; Gonz\u00e1lez-L\u00f3pez, Gloria In\u00e9s; Gonz\u00e1lez-Navarro, Felix; Ordaz-Schroeder, Mario", "title": "Software engineering\u2019s contribution to earthquake engineering", "date": "2013", "keywords": "applications; data; earthquakes; engineering; information; language; mexico; national; software", "summary": "Producing earthquake analysis software is definitely an essential tool for achieving such goals more efficiently, quickly and accurately. Key words: seismic analysis software, seismic engineering, software engineering.", "mime": "application/pdf"}, {"id": "esrj-33840", "words": "5931", "extension": ".pdf", "flesch": "-22", "author": "Hern\u00e1ndez Pardo, Orlando; Gretta, C; Alexander, E; Iraida, M; Pintor, B", "title": "Geophysical exploration of disseminated and stockwork deposits associated with plutonic intrusive rock: a case study on the eastern flank of Colombia\u2019s western cordillera", "date": "2012", "keywords": "anomaly; areas; chargeability; deposits; discontinuities; figure; highs; m depth; m electrode; mineralization; pole; pole array; porphyry; resistivity", "summary": "These deposits are normally associated with intermediate to acid plutonic intrusive rocks and all are characterized by intense, extensive hydrothermal alteration of host rocks Disseminated deposit exploration in the tropics suffers from difficult geological mapping due to dense vegetation, lack of rock out- crops and extensive but variable saprolytic weathering Geophysical exploration of these deposits normally includes magnetic, induced polarization and gamma ray spectrometry surveys The largest RTP total mag- netic field anomaly highs are usually associated with diorite porphyry intrusive bodies Diorites are usually less magnetic than basaltic rocks; thus when magnetic anomaly highs are related to intrusions they can be explained by basic metals\u2019 intensive mineralization (including magnetite) associated with porphyry intru- sions Magnetic anomaly gradients regularly help delineate local discontinuities which can be interpreted as local faults and joints that can be mineralized Gamma ray spectrometry is useful for determining anomalous potassium, uranium and thorium concentration as it can map alteration halos and linear discontinuities Statistical analysis of the data also can determine the intermediate intrusive / extrusive nature of porphyry intrusions Gamma ray spectrometry can help to determine elemental potassium concentration, regardless of the associated potassium mineral species, thereby enabling alteration mapping in a geological setting related to volcanic-associated massive sulphide base metal and gold deposits An induced polarization survey is use- ful in outlining disseminated sulphide distribution in porphyry deposits related to chargeability anomaly highs The results of the Quinch\u00eda project\u2019s geophysical exploration program are discussed RESUMEN Los dep\u00f3sitos de sulfuros diseminados son dep\u00f3sitos de bajo tenor y alto tonelaje, los cuales son impor- tantes fuentes en la explotaci\u00f3n de oro, cobre, molibdeno y zinc Estos dep\u00f3sitos est\u00e1n asociados a rocas plut\u00f3nicas intermedias a acidas y se caracterizan por una intensa y extensa alteraci\u00f3n de la roca hu\u00e9sped o encajante La exploraci\u00f3n de estos dep\u00f3sitos en las zonas tropicales presenta una gran dificultad debido a la densa vegetaci\u00f3n, escasez de afloramientos y alteraci\u00f3n saprol\u00edtica variable The highest mean chargeability val- ues and most associated mineralized areas were located at 170m depth The resistivity lows had values from 7 ohm-m to 300 ohm-m related to sulphur mineralization and altered igneous rocks It was concluded that about 40% of the studied area covered by the induced polarization survey had the potential to host porphyry style alteration areas and sulphide areas which might be mineralized with base and precious metals in the porphyry intrusion of La Cumbre, Mateca\u00f1a, la Lenguita, el Cedral, Mandeval, San Luis and Dos Quebradas", "mime": "application/pdf"}, {"id": "esrj-33843", "words": "4851", "extension": ".pdf", "flesch": "17", "author": "Anudu, G K; Onuba, L N; Onwuemesi, A G; Ikpokonte, A E", "title": "Analysis of aeromagnetic data over Wamba and its adjoining areas in north-central Nigeria", "date": "2012", "keywords": "aeromagnetic; area; basement; data; figure; intensity; map; residual; rocks; trends; wamba", "summary": "V16N1C.indb EARTH SCIENCES RESEARCH JOURNAL MAGNETIC EXPLORATION METHODS Earth Sci Res SJ Vol 16, No 1 (June, 2012): 25 - 33 Introduction The magnetic method is one of the best geophysical techniques used for determining depth to magnetic source bodies (and possibly sediment thickness) and delineating subsurface structures Large-scale aeromagnetic surveys have been used to locate faults, shear zones and fractures Such zones may serve as potential hosts for a variety of minerals and may be used as guidance for exploration of the epigenetic, stress-related minerali- sation in the surrounding rocks (Paterson and Reeves, 1985) Corresponding author E-mail: anudugoodluck@yahoo co uk; goodluck anudu@abdn ac uk ABSTRACT An aeromagnetic intensity contour map of Wamba was acquired, digitised and analysed The study was aimed at mapping metalliferous mineral deposits in basement rocks, delineating structural lineaments and their trends as well as estimating the depth to magnetic source bodies Regional-", "mime": "application/pdf"}, {"id": "esrj-33846", "words": "3046", "extension": ".pdf", "flesch": "25", "author": "Al-Arifi, Nassir; Lashin, Aref; Al-Humidan, Saad", "title": "Migration of local earthquakes in the Gulf of Aqaba, North Red Sea", "date": "2012", "keywords": "aftershock; aqaba; figure; gulf; mainshock; migration; sequence", "summary": "Epicentral distributions of earthquakes (MD>3 5) for two sequences Where A is the 1993 sequence and B is the 1995 sequence Small and large arrows indicate the direction of the minimum and maximum compressive stresses respectively, according to small scale structures study (Reches 1987), and focal mechanism study (Al-Arifi 1996) figure 4. (a) Shows the local migration of strong aftershocks of the 1993 sequence in the Gulf of Aqaba (b) Shows profiles for jumping of strong aftershocks of the 1993 Gulf of Aqaba sequence The arrows indicate the direction of the local mi- gration and jumping est aftershock) The aftershocks moved northward Figure 4 shows strong aftershocks\u2019 local migration regarding the 1993 sequence On the same day in which the mainshock occurred, activity was concentrated in the north between 28 70-28 85\u00b0 N and 34 75-34 9\u00b0 E where two strong aftershocks (Md 5 6 and 4 9) occurred 80 days after the mainshock the activity moved northwards again where another strong aftershock occurred at 29 0\u00b0N and 34 83\u00b0E Activity leaped to the south- west (still north of the mainshock) on the 3rd of November 1993 with another strong shock that occurred at 28 62\u00b0N and 34 6\u00b0E; activity then moved northwards where the last strong aftershock occurred on the 4th of December 1993 at 28 86\u00b0N and 34 41\u00b0E Figure 4 shows that the 1993 focal depth started with more than 10 km for foreshocks, no foreshock having less than 10 km depth The mainshock had the depth of 15 km and then the depth reduced with time from 11-12 km for the first two strong aftershocks until the last strong aftershock was at a depth of 2 km The 1995 sequence was similar, aftershock focal depth becoming reduced as time elapsed Such \u2018jumping\u2019 could be explained by earthquakes migrating northwards into an area where all seismicity was shal- lower than in the south of the Gulf As regards 1995 sequence local migra- tion it was difficult to determine a specific direction for a strong aftershock (even though the aftershocks generally moved northwards) results The focal mechanism solution for the mainshocks and the largest aftershocks for both sequences (1993 and 1995, Figure 5) included the flowing: 1)", "mime": "application/pdf"}, {"id": "esrj-33848", "words": "10116", "extension": ".pdf", "flesch": "-8", "author": "Triana, J M; Herrera, J F; A, C; Castellanos, O M; Henao, J A; William, Craig; Roberts, Clive", "title": "Natural zeolites filling amygdales and veins in basalts from the British Tertiary Igneous Province on the Isle of Skye, Scotland", "date": "2012", "keywords": "amygdales; analcime; basalts; chabazite; crystals; et al; figure; formation; isle; lava; mineral; natrolite; nontronite; occurrence; rocks; scotland; skye; stilbite; thomsonite; veins; zeolites", "summary": "The red laterite is formed by the deep weath- (2) Natural zeolites filling amygdales and veins in basalts from the British Tertiary Igneous Province on the Isle of Skye, Scotland 45 ering of the upper layers of lava flows before the next one had erupted In some cases, contact between spillitic lava flows marks a contrast in the degree of weathering, colour and development of layering, reddish-brown meaning a greater degree of weathering and vesicular random distribution, which apparently contain a smaller amount of zeolite amygdales A typical example of zeolite occurrence in amygdales can be observed at Talisker Point (Figure 3d) They have become worthy of being called the mineral of the future several countries around the world have made significant progress in the exploring and exploiting of this mineral However, only a few of the natural zeolites in the world are found in sufficient quantities and having the purity required by industry The U S Geological Survey has reported natural zeolites\u2019 worldwide oc- currence in the USA, Japan, Korea, Bulgaria, Czechoslovakia, Romania, Hungary, Russia, Yugoslavia, South Africa, Italy, Germany, Turkey and China, the latter having the greatest worldwide production Clinoptilo- lite, mordenite, heulandite, chabazite, phillipsite and laumontite are some of the more than 40 known natural zeolites occurring in reasonably high quantities and purity This study was aimed at recognising natural zeolites filling amygdales and veins in tertiary basaltic host rocks on the Isle of Skye (NW Scotland) for their mineralogical characterisation and determining the sequence of zeolite formation of and that of associated minerals field sampling and analytical methods A University of Wolverhampton (England) research team was in- volved in reconnaissance fieldwork on the Isle of Skye (Scotland) during autumn 2008 Fieldwork was primarily focused on localities presenting excellent examples of natural zeolites in spillites from the Skye Main Lava Series (Thompson, 1982;", "mime": "application/pdf"}, {"id": "esrj-33849", "words": "6445", "extension": ".pdf", "flesch": "-6", "author": "Sandoval, Eimar; Pando, Miguel A", "title": "Experimental assessment of the liquefaction resistance of calcareous biogenous sands", "date": "2012", "keywords": "cabo; cabo rojo; cyclic; dr =; figure; liquefaction; ottawa; pressure; rojo; samples; sands; silica; state; stress", "summary": "Calcite is the main component of calcareous sand (usually greater than 90% calcium carbonate content) Calcareous sands are unique in terms of particle characteristics, in- cluding mineralogy, shape, surface texture, high void ratio, and intra-po- rosity Calcareous sands have variable cementation, ranging from non-ce- mented to strongly-cemented state These sands are more crushable, more contractive, and less stiff than terrigenous silica sands due to their unique particle properties and carbonate content (Cata\u00f1o & Pando, 2010) methodology The experimental programme used in this study primarily involved sand mineralogical and grain characterisation, characterising the CSL and consolidated undrained cyclic triaxial testing of specimens prepared using Cabo Rojo calcareous sands and Ottawa silica sands Thirty-nine consoli- dated undrained cyclic triaxial tests were performed: 31 of them on Cabo Rojo calcareous sands and 8 on Ottawa silica sands Description of test sand materials used The calcareous sand being studied was collected from a beach in Puerto Real, Cabo Rojo, south-western Puerto Rico; it was retrieved from the near surface beach using an ordinary shovel and buckets This sand was unce- mented and classified as being white to yellow, fine- to medium-grained, poorly-graded, having sub-angular to angular grains and high internal po- Eimar A Sandoval and Miguel A Pando58 rosity (Figure 2 shows grain characteristics for this sand) For example, Table 1 shows that silica sand is coarser than calcareous sand and its specific gravity is lower Cabo Rojo calcareous grain characteristics Cabo Rojo calcareous sands are sedimentary carbonates for which diagenesis and resulting grain mineralogy are influenced by the depth and temperature of the water column (Morse & Mackenzie 1990, Chaney et al 1982, Morelock & Ramirez 2004) Carbonates are usually dominat- ed by aragonite in shallow waters, followed by magnesium-rich calcites, whereas in deep waters carbonates are composed of calcite having low magnesium content Parameter Cabo rojo calcareous Ottawa silica sand ASTM standard D10 (mm) 0.24 0.65 ASTM D422-463 D30 (mm) 0.30 0.71 D50 (mm) 0.37 0.75 D60 (mm) 0.41 0.78 Cu 1.75 2.1 Cc 0.94 1.1 Gs 2.84 2.65 ASTM D854 \ue067min (kN/m3) 9.10 14.6 ASTM D4254emax 2.07 0.78 \ue067max (kN/m3) 11.1 17.3 Alternative methodemin 1.51 0.50 Table 1.", "mime": "application/pdf"}, {"id": "esrj-33850", "words": "5556", "extension": ".pdf", "flesch": "19", "author": "Ersoy, Hakan; Kanik, Derya", "title": "Multicriteria decision-making analysis based methodology for predicting carbonate rocks' uniaxial compressive strength", "date": "2012", "keywords": "analysis; carbonate; compressive; index; limestone; properties; regression; rock; samples; strength; travertine; ucs; uniaxial", "summary": "Min SD Mean Max Min SD Mean Kalecik travertine (1a: 30 samples) 0.20 0.08 0.04 0.13 3.33 0.88 0.73 1.39 7.37 2.16 1.36 3.29 Bah\u00e7ecik travertine (1b: 15 samples) 0.77 0.12 0.15 0.34 1.20 0.48 0.24 0.77 2.88 1.18 0.57 1.90 \u00c7amoluk travertine (1c: 25 samples) 2.48 0.49 0.43 1.40 2.90 0.98 0.48 1.88 6.65 2.37 1.01 4.28 \u00c7amoluk (2) (1d: 10 samples) 0.62 0.45 0.06 0.59 1.30 0.91 0.12 1.07 3.03 2.44 0.28 2.61 G\u00f6lova travertine (1e: 13 samples) 0.31 0.18 0.04 0.23 0.62 0.37 0.063 0.47 1.55 0.94 0.15 1.19 Bayburt onyx (2a and b: 21) 0.79 0.01 0.18 0.07 0.72 0.02 0.02 0.10 1.95 0.06 0.32 0.26 Kelkit limestone (3a: 12 samples) 0.06 0.03 0.01 0.05 0.18 0.13 0.01 0.15 0.48 0.34 0.04 0.40 Esenyurt limestone (3b: 15 samples) 0.46 0.04 0.09 0.14 0.31 0.06 0.07 0.19 0.08 0.16 0.19 0.51 Kemah limestone (3c: 21 samples) 0.14 0.01 0.03 0.03 0.07 0.02 0.01 0.04 0.18 0.05 0.03 0.11 Tercan limestone (3d: 25 samples) 0.09 0.01 0.01 0.06 0.12 0.04 0.02 0.09 0.31 0.12 0.05 0.24 Sample location and type Unit weight (kN/m3) velocity (m/s) P wave UCS (MPa) Max Min SD Mean Max Min SD Mean Max Min SD Mean Kalecik travertine (1a: 30 samples) 24.7 22.2 0.8 24.0 4541 3813 220 4050 65 34 8 53 Bah\u00e7ecik travertine (1b: 15 samples) 25.1 24.1 0.3 24.6 5072 4091 297 4598 44 25 5 37 \u00c7amoluk travertine (1c: 25 samples) 24.6 24.1 0.2 24.4 3693 3506 61 3590 44 30 5 38 \u00c7amoluk (2) travertine (1d: 10 samples) 25.4 24.9 0.2 25.2 4727 3913 268 4323 43 39 1.2 41 G\u00f6lova travertine (1e: 13 samples) 29.2 22.2 0.9 25.0 5072 3813 374 4430 66 20 10 40 Bayburt onyx (2a and b: 21 samples) 27.4 26.5 0.3 27.1 6800 4121 805 5240 70 20 13 45 Kelkit limestone (3a: 12 samples) 27.1 26.8 0.1 27.0 6321 5988 98 6200 154 30 38 80 Esenyurt limestone (3b: 15 samples) 27.4 26.6 0.2 27.0 6103 5562 169 5760 117 40 24 70 Kemah limestone (3c: 21 samples) 27.1 26.8 0.1 27.0 6353 6127 59 6250 162 25 39 90 Tercan limestone (3d: 25 samples) 27.3 25.3 0.6 26.8 6057 4327 371 5414 101 79 9 85 Hakan Ersoy and Derya Kanik70 Integrating site selection criteria was based on multi-criteria assess- ment methods (Eastmen, 1995): = \u2211 (Sk*wk) where, Sk was the land\u2019s suitability for landfill for objective k (priority groups), (fi)k was factor i (discriminating features) for objective k, (wi)k was the weighting for factor i (score given experimental studies) for objective k, (rj)k was constraint j for objective k (value 0 or 1), S was multi-objective suitability and wk was the weighting for objective k results The rocks\u2019 index and strength properties UCS is an expensive and very time-consuming test The core surfaces have to be ground down to make them parallel at a specified tolerance and a high load capacity loading frame is usually required Thus, in the study, ten groups of carbonate rock samples were collected in the Southern Zone of the eastern Pontides (NE Turkey) to establish some relationships between UCS and index properties In the study the index and strength properties of the rocks were de- termined in accordance with ISRM (1981) The limestone samples were selected from pre-Late Cretaceous plat- form carbonates which are widely exposed in the area and Liassic-aged for- mations; travertine and onyx samples were selected from the G\u00fcm\u00fc\u015fhane, Bayburt and Giresun area Three rock types from ten rock formations were sampled and tested for this study Table 1 gives the rock type, age, location and description of the samples Sample preparation and laboratory tests Several carbonate rock samples were collected in this study to deter- mine physical and strength properties Seven oriented block samples for each group of carbonates were collected from the field for laboratory test- ing; each block was represented by at least ten core specimens 225 NX- size core specimens having a 2 5:1 length to diameter ratio were prepared from the block samples Rock samples were carefully inspected before testing, to obtain the most representative stone samples for performing laboratory tests figure 2.", "mime": "application/pdf"}, {"id": "esrj-33851", "words": "4120", "extension": ".pdf", "flesch": "4", "author": "Farooq, Muhammad; et, al", "title": "Subsurface cavity detection in a karst environment using electrical resistivity (er): a case study from yongweol-ri, South Korea", "date": "2012", "keywords": "area; array; cavity; d ep; dipole; figure; karst; resistivity; subsurface", "summary": "It also shows weak rock and/or clay-filled cavities and that the corresponding resistivity images identified low resistivity areas within the study region Subsurface cavity detection in a karst environment using electrical resistivity (er): a case study from yongweol-ri, South Korea 81 0 5 10 15 20 25 Line 5 BH 106 D ep th (m et er ) Distance (meter) 10 20 30 40 50 60 70 80 figure 8. Inverted field resistivity data obtained from survey lines 1 to 4 Line 1 Line 2 Line 3 Line 4 (RMS) misfit between observed and model pseudosection is achieved Re- sistivity differences normally correspond to changes in subsurface materi- als or pore fluids Synthetic modelling Synthetic modelling was carried out prior to field data acquisition in this study for deciding on a suitable electrode array to be used during data acquisition EM2DMODEL numerical forward model software (South Ko- rean Institute of Geosciences and Mineral Resources\u2019 Geo-electrical Imag- ing Laboratory) was used to simulate subsurface cavity electrical response A finite element algorithm was used to calculate direct response (apparent resistivity) from a set of resistivity models intended to reflect cavity area pat- tern The resulting apparent resistivity from forward modelling was input into DIPRO software and inverted into earth resistivity models The for- ward model tested (Figure 2) had three layers having 20 \ue056-m, 70 \ue056-m and 500 \ue056-m resistivity; 70 \ue056-m was selected to represent the top layer of overbur- den material (weathered soils), 20 \ue056-m a subsurface cavity in the bedrock and 500 \ue056-m bedrock resistivity (i e limestone)", "mime": "application/pdf"}, {"id": "esrj-34000", "words": "5700", "extension": ".pdf", "flesch": "55", "author": "Dezfoolian, Mohammad Amin; Riahi, Mohammad Ali; Kadkhodaie-Ilkhchi, Ali", "title": "Conversion of 3D seismic attributes to reservoir hydraulic flow units using a neural network approach: An example from the Kangan and Dalan carbonate reservoirs, the world's largest non-associated gas reservoirs, near the Persian Gulf", "date": "2013", "keywords": "attributes; data; fig; flow; fzi; hfus; impedance; log; porosity; reservoir; seismic; units", "summary": "By analyzing core data and investigating its relation to seismic attributes, it is possible to offer a model for HFU prediction from 3D seismic data. The methodology introduced in this study estimates HFUs from a large volume of 3D seismic data.", "mime": "application/pdf"}, {"id": "esrj-34011", "words": "4747", "extension": ".pdf", "flesch": "55", "author": "Suganthi, S; Elango, L; Subramanian, S K", "title": "Groundwater potential zonation by Remote Sensing and GIS techniques and its relation to the Groundwater level in the Coastal part of the Arani and Koratalai River Basin, Southern India", "date": "2013", "keywords": "area; density; drainage; figure; gis; groundwater; india; map; potential; rainfall; sensing; study; zones", "summary": "Further, it was identified that the existing well fields are located in regions with high groundwater potential zones. Hence, the present study was carried out with the objec- tive of mapping the spatial distribution of groundwater potential zones in the Arani and Koratalai river basin, which will assist in the proper develo- pment of groundwater resources in this area.", "mime": "application/pdf"}, {"id": "esrj-34026", "words": "5399", "extension": ".pdf", "flesch": "59", "author": "Valencia-Morales, Yuly Tatiana; Toro Toro, Luz Mary; Ruiz-Jim\u00e9nez, Elvira Cristina; Moreno-S\u00e1nchez, Mario", "title": "Pressure-Temperature path of Arqu\u00eda Group rocks (NW Colombia): a petrographic analysis from mineral assemblages", "date": "2013", "keywords": "amphibolites; arqu\u00eda; assemblages; epidote; facies; figure; garnet; group; hornblende; mineral; quartz; rocks; schists", "summary": "Vol. 17, No. 2 (December, 2013): 141 - 149 Pressure-Temperature path of Arqu\u00eda Group rocks (NW Colombia): a petrographic analysis from mineral assemblages Yuly Tatiana Valencia-Morales, Luz Mary Toro Toro, Elvira Cristina Ruiz-Jim\u00e9nez, Mario Moreno-S\u00e1nchez Geological Sciences Department of Universidad de Caldas, Calle 65 # 26-10, Manizales, Colombia. Pressure-Temperature path of Arqu\u00eda Group rocks (NW Colombia): a petrographic analysis from mineral assemblages 144 + epidote group minerals + quartz + albite \u00b1 garnet (Figure 3c).", "mime": "application/pdf"}, {"id": "esrj-34048", "words": "8795", "extension": ".pdf", "flesch": "56", "author": "Li, Peiyue; Wu, Jianhua; Qian, Hui", "title": "Hydrogeochemistry and Quality Assessment of Shallow Groundwater in the Southern Part of the Yellow River Alluvial Plain (Zhongwei Section), Northwest China", "date": "2014", "keywords": "aquifer; area; ca2; china; dissolution; fig; groundwater; hco3; irrigation; na+; plain; quality; river; samples; study; tds; water quality; yellow", "summary": "Assessment of groundwater quality and hydrogeochemistry of Manimuktha River basin, Tamil Nadu, India. Assessment of groundwater quality for irrigation purposes and identification of hydrogeochemical evolution mechanisms in Pengyang County, China.", "mime": "application/pdf"}, {"id": "esrj-34266", "words": "4694", "extension": ".pdf", "flesch": "58", "author": "Ersoy, Arzu Firat; G\u00fcltekin, Fatma", "title": "DRASTIC-based methodology for assessing groundwater vulnerability in the G\u00fcm\u00fc\u015fhac\u0131k\u00f6y and Merzifon basin (Amasya, Turkey)", "date": "2013", "keywords": "aquifer; area; basin; drastic; ersoy; figure; groundwater; g\u00fcm\u00fc\u015fhac\u0131k\u00f6y; map; media; merzifon; study; vulnerability", "summary": "Vol. 17, No. 1 (June, 2013): 33 - 40 DRASTIC-based methodology for assessing groundwater vulnerability in the G\u00fcm\u00fc\u015fhac\u0131k\u00f6y and Merzifon basin (Amasya, Turkey) The concept of groundwater vulnerability to contamination was in- troduced in the 1960s in France by Margat (1968).", "mime": "application/pdf"}, {"id": "esrj-34277", "words": "5257", "extension": ".pdf", "flesch": "62", "author": "Tenzer, Robert; Bagherbandi, Mohammad", "title": "Reference crust-mantle density contrast beneath Antarctica based on the Vening Meinesz-Moritz isostatic inverse problem and CRUST2.0 seismic model", "date": "2013", "keywords": "antarctica; contrast; crust; crust2.0; density; density contrast; east; gravity; moho; west", "summary": "CRUST2.0 Moho density contrast was computed from CRUST2.0 upper mantle densities relative to 2,670 kg/m3 crust den- sity. CRUST2.0 Moho density contrast is shown in Figure 4. Diffe- rences between both Moho density contrasts are shown in Figures 5.", "mime": "application/pdf"}, {"id": "esrj-34287", "words": "5060", "extension": ".pdf", "flesch": "57", "author": "Corchete, V", "title": "A methodology for the analysis of the Rayleigh-wave ellipticity", "date": "2013", "keywords": "analysis; ellipticity; figure; inversion; model; rayleigh; station; velocity; wave; wave ellipticity", "summary": "Shear wave velocity structure of the Sinai Peninsula from Rayleigh wave analysis. Some new theoretical considerations about the ellipticity of Rayleigh waves in the light of site-effect studies in Israel and Mexico.", "mime": "application/pdf"}, {"id": "esrj-34299", "words": "7014", "extension": ".pdf", "flesch": "56", "author": "Olu-Owolabi, Bamidele I.; Agunbiade, Foluso O.; Adebowale, Kayode O.", "title": "Metal speciation in sediments from crude oil prospecting in the coastal area of Ondo State, Nigeria", "date": "2013", "keywords": "area; carbonate; crude; figure; fraction; metal; metal species; oil; organic; sediments; site; species", "summary": "The use of metal species in now being adopted (Ianni et al., 2000; Korfali and Davies, 2004). 723\u00b138 15.6\u00b11.1 4.49\u00b10.3 4.24\u00b10.4 Table 1: Total concentration of metal species in sediment from the Ondo coastal area Figure 1.", "mime": "application/pdf"}, {"id": "esrj-34301", "words": "3332", "extension": ".pdf", "flesch": "57", "author": "GOLEKAR, RUSHIKESH BABURAO; BARIDE, MUKUND VASANT; PATIL, SANJAYKUMAR NARAYAN", "title": "Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India", "date": "2013", "keywords": "area; average; bdl; ground; monsoon; ppm; study; trace; water", "summary": "Manganese Mn concentration during the pre-monsoon 2011 season ranged from 0.003 ppm to 0.026 (average 0.010 ppm) and ranged from BDL to 0160 Table 2.Trace elements in ground water samples from the Anjani and Jhiri River catchment area, northern Maharashtra, India Sample ID Fe Fe Average Zn Zn Average Cu Cu Average Season pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 1 0.0469 0.0362 0.0416 0.4269 0.1963 0.3116 0.0019 0.0012 0.0016 2 0.0634 0.0644 0.0639 0.1196 0.2034 0.1615 0.0096 0.0062 0.0079 3 0.0963 BDL 0.0963 0.1369 0.1481 0.1425 0.0062 0.0122 0.0092 4 0.0063 BDL 0.0063 0.0962 0.0882 0.0922 BDL 0.0012 0.0012 5 0.0696 0.0326 0.0511 0.1369 0.1228 0.1299 Water level pre- monsoon 2011 Water level post- monsoon 2011 1 20.98 75.28 232.6 14.6 10.6 2 20.86 75.36 216.9 6.5 4 3 20.91 75.32 212.6 9.5 7 4 20.9 75.33 211.8 * * 5 20.94 75.32 222 12.6 8.9 6 20.83 75.38 218.9 9.5 7.5 7 21.01 75.27 232.4 * * 8 21.01 75.26 220.6 10.5 6.5 9 21.01 75.28 224.6 12.9 7.9 10 20.99 75.29 238.2 11.6 8.5 (MASL indicates metres above sea-level, * bore/tube well water) Human health risk due to trace element contamination in groundwater from the Anjani and Jhiri river catchment area in northern Maharashtra, India Table 3.Trace elements in ground water sample from Anjani and Jhiri river catchment area, Northern Maharashtra, India Sample ID Ni Ni Average Mn Mn Average Pb Pb Average Cd Cd Average Season pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 pre 2011 post 2011 1 0.2966 0.0263 0.1615 0.026 0.16 0.093 0.846 0.637 0.7415 0.096 0.057 0.0765 2 0.1963 0.2605 0.2284 0.005 0.002 0.0035 0.09 0.367 0.2285 0.316 0.095 0.2055 3 0.1789 0.1787 0.1788 0.003 0.002 0.0025 0.036 0.018 0.027 0.096 0.042 0.069 4 0.3216 0.2916 0.3066 0.006 BDL 0.006 0.006 1.516 0.761 0.896 BDL 0.896 5 0.3606 0.3245 0.3426 0.006 BDL 0.006 0.089 0.958 0.5235 1.026 0.126 0.576 6 0.1789 0.1978 0.1884 0.004 BDL 0.004 0.079 0.56 0.3195 0.79 0.095 0.4425 7 0.0695 0.0618 0.0657 0.01 BDL 0.01 0.046 0.186 0.116 0.169 0.047 0.108 8 0.3165 0.3498 0.3332 0.016", "mime": "application/pdf"}, {"id": "esrj-34799", "words": "7976", "extension": ".pdf", "flesch": "52", "author": "Ogala, Jude E.; Akaegbobi, Mike I.", "title": "Using aromatic biological markers as a tool for assessing thermal maturity of source rocks in the Campano-Maastrichtian Mamu Formation, southeastern Nigeria", "date": "2014", "keywords": "anambra; basin; coal; et al; extracts; hydrocarbons; maturity; oils; petroleum; radke; rock; shale; source; table; volume", "summary": "Alexander et al., 1985; Radke et al., 1986; Garrigues et al., 1988; Strachan et al., 1988; Akaegbobi et al., 2000; Akinlua et al., 2007; Sonibare et al., 2008). Complex mixtures of aromatic hydrocarbons have been identified in crude oils (Cumbers et al., 1986), organic extracts of coals (Radke et al., 1982a, b; Puttman and Villar, 1987) and ancient sediments (Alexander et al., 1985; Garrigues et al., 1988, 1990).", "mime": "application/pdf"}, {"id": "esrj-35101", "words": "2655", "extension": ".pdf", "flesch": "51", "author": "Yousefirad, Mostafa; Shaabanian, Rahim; Khamooshi, Touran", "title": "Late Permian brachiopoda fauna in north-western Iran", "date": "2013", "keywords": "abich; ali; bashi; brachiopods; formation; iran; late; permian; section; shell", "summary": "The 46-meter-thick Ali Bashi Formation was examined in this re- search to enable a paleontological study of brachiopods. Late Permian brachiopod genera were found in the Zal section.", "mime": "application/pdf"}, {"id": "esrj-35798", "words": "4873", "extension": ".pdf", "flesch": "51", "author": "Senapathi, Venkatramanan", "title": "A multivariate statistical approaches on physicochemical characteristics of ground water in and around Nagapattinam district, Cauvery deltaic region of Tamil Nadu, India", "date": "2013", "keywords": "analysis; aquifer; ground; ground water; journal; monsoon; quality; study; summer; water", "summary": "Results and Discussion Summary of ground water analysis The water quality analysis of different ground water samples were carried out to determine different physicochemical parameters such as for pH, EC, TDS, Ca, Mg, Na, K, HCO3, SO4, and Cl; and the results are presented in Table 1 and Figure 2. Vol. 17, No. 2 (December, 2013): 97 - 103 A multivariate statistical approaches on physicochemical characteristics of ground water in and around Nagapattinam district, Cauvery deltaic region of Tamil Nadu, India S. Venkatramanan1, 2, S. Y. Chung1*, T. Ramkumar2, G. Gnanachandrasamy2, S. Vasudevan2 1 Institute of Environmental Geosciences, Department of Earth & Environmental Sciences, Pukyong National University, 599-1 Daeyeon-dong Nam-gu, Busan 608-737, South Korea 2Department of Earth Sciences, Annamalai University, Annamalai Nagar 608-502, Tamil Nadu, India *Corresponding author email: chungsy@pknu.ac.kr, venkatramanansenapathi@gmail.com HYDROGEOLOGY Ground water samples collected at different locations in and around the Nagapattinam district were analyzed for their physicochemical characteristics.", "mime": "application/pdf"}, {"id": "esrj-35804", "words": "7162", "extension": ".pdf", "flesch": "57", "author": "Karaman, Kadir; Ercikdi, Bayram; Kesimal, Ayhan", "title": "The assessment of slope stability and rock excavatability in a limestone quarry", "date": "2013", "keywords": "analysis; dip; discontinuity; failure; hack; limestone; mass; orientation; rock; slope; slope stability; sspc; stability; study", "summary": "Rock slope stability analysis\u2013utilization of advan- ced numerical techniques. ABSTRACT RESUMEN Key words: Rock slope stability; Kinematic analysis; Slope stability probability classification (SSPC); Slope mass rating (SMR); Excavatability 170 Introduction The slope stability analysis of rocks is vital for designing safe slopes in open\u2013pit mines.", "mime": "application/pdf"}, {"id": "esrj-35887", "words": "5391", "extension": ".pdf", "flesch": "54", "author": "Senkaya, Mustafa; Karsl\u0131, Hakan", "title": "A semi-automatic approach to identify first arrival time: the Cross-Correlation Technique", "date": "2014", "keywords": "arrival; break; cct; correlation; data; fig; method; noise; picking; process; refraction; source; time; wavelet", "summary": "Hatherly (1982) used the least squares method with the first kick concept to define first arrival times. CCT performance in the case of 30% random noise: (a) Data with random noise, (b) first arrival times from theoretical and the CCT.", "mime": "application/pdf"}, {"id": "esrj-36056", "words": "3728", "extension": ".pdf", "flesch": "55", "author": "Montes, Luis Alfredo; Corrales, \u00c1lvaro; Cabrera, Francisco", "title": "Enhancing time resolution by stabilized inverse filter and Q estimated on instantaneous spectra", "date": "2014", "keywords": "attenuation; figure; frequency; inverse; spectra; spectrum", "summary": "MP, windowed Fourier (WF), and Gabor transforms (GT) were tested on synthetic seismograms providing Q values that indicated the best performance of MP. Applied to a migrated offshore Colombian seismic line, the entire procedure coded in Matlab compensated for the energy losses and increased the S/N ratio. Next, Q values were estimated at 0.5, 1.5, 2.5, 3.0, 3.5, and 4.5 seconds in the migrated section, and in order to consider the Q lateral changes it was estimated in positions separated forty CDPs.", "mime": "application/pdf"}, {"id": "esrj-36207", "words": "5159", "extension": ".pdf", "flesch": "53", "author": "Delbari, Masoomeh; Bahraini Motlagh, Masoud; Amiri, Meysam", "title": "Spatio-temporal variability of groundwater depth in the Eghlid aquifer in southern Iran", "date": "2013", "keywords": "area; depth; dry; figure; groundwater; groundwater depth; kriging; seasons; study; variability; wells", "summary": "Groundwater depth fluctuation (m) maps from 1997 to 2010 for the wet and dry seasons Spatio-temporal variability of groundwater depth in the Eghlid aquifer in southern Iran 114 variables. Vol. 17, No. 2 (December, 2013): 105 - 114 Spatio-temporal variability of groundwater depth in the Eghlid aquifer in southern Iran Masoomeh Delbari1*, Masoud Bahraini Motlagh2 and Meysam Amiri3 1 Associate Professor in the Department of Water Engineering, Faculty of Water and Soil, University of Zabol, Zabol, Iran, Tel: +98/542/2232113-8, Fax: +98/542/2255133, *Corresponding author Email: mas_delbari@yahoo.com 2 Graduated M.Sc.", "mime": "application/pdf"}, {"id": "esrj-36907", "words": "2186", "extension": ".pdf", "flesch": "47", "author": "Giakoumakis, S.; Alexakis, D.; Gotsis, D.", "title": "An approximate method for estimating nutrient loads in drainage water from a coastal irrigated area", "date": "2013", "keywords": "area; drainage; irrigation; loads; study; water", "summary": "6.2 6.2 7.8 35.0 The estimated values of the mean monthly inflows for the period of the years 2000-2010 (precipitation, irrigation water) and outflows (potential evapotranspiration, drainage water) in the study area are presented in Fig. The annual volume of drainage water from the study area is greater than that of irrigation water, which is percolated into the soil by sprinkler irrigation, because drainage water is also composed of runoff from precipitation.", "mime": "application/pdf"}, {"id": "esrj-36908", "words": "4288", "extension": ".pdf", "flesch": "53", "author": "Odukoya, Sesan; Oresanya, O; Abimbola, A F", "title": "Biogeochemical and engineering characteristics of soils and groundwater around a dumpsite", "date": "2013", "keywords": "attenuation; depth; dumpsite; elements; groundwater; leachate; m depth; natural; samples; soil; table; total; water", "summary": "Atterberg limits (%) Grain size distribution (%) Permeability (K) coefficient X 10-5 Rating LL PL PI Clay Silt Sand Gravel L1 0-1 9.17 18.69 28.13 52.92 0.28 18.6 Low 1-2 9.07 22.23 34.71 42.92 0.14 8.46 Low 2-3 5.68 33.27 20.99 12.28 56.03 22.05 22.93 0.00 2.61 Low 3-4 10.03 13.65 23.98 59.73 2.65 41.8 Low L2 0-1 17.99 30.39 15.08 15.31 56.57 20.70 22.74 0.00 2.61 Low 1-2 17.07 30.59 19.83 10.76 54.56 22.11 22.73 0.61 3.35 Low L3 0-1 33.33 44.29 23.36 20.93 26.57 33.40 30.68 9.36 9.09 Low 1-2 23.58 46.70 25.49 21.21 32.66 26.60 31.59 6.75 5.61 Low L4 0-1 11.71 37.16 22.98 14.18 44.11 32.55 23.24 0.00 7.84 Low 1-2 20.01 33.65 20.79 12.86 60.72 18.91 20.21 0.17 1.96 Low Biogeochemical and engineering characteristics of soils and groundwater around a dumpsite Table 2: Summary of physical-chemical analysis result of water samples Table 4: Summary of soil samples\u2019 chemical and microanalysis parameters Table 3: Summary of phenol and microbiological parameters in water samples ND: not detected Major elements \u2013Mg/l Trace elements \u2013\u00b5g/l Parameter Range N=12 Mean USEPA (2009) Soil analysis results Soil samples taken at regular depth intervals within the dumpsite were submitted to geochemical analysis.", "mime": "application/pdf"}, {"id": "esrj-36910", "words": "12458", "extension": ".pdf", "flesch": "54", "author": "Ozturk, Serkan", "title": "A New Empirical Relation between Surface Wave Magnitude and Rupture Length for Turkey Earthquakes", "date": "2014", "keywords": "data; dip; displacement; earthquake; epicenter; et al; fault; faulting; length; magnitude; mean; nalbant; north; regression; rocks; rupture; slip; surface; turkey", "summary": "In this study, it is investigated the usage of different regression methods as a theoretical, practical and correct estimation tool in order to obtain the best empirical relationship between surface wave magnitude and rupture length for Turkey earthquakes. In order to estimate the empirical relationships between these parameters for Turkey earthquakes, log- linear fit is used and following equations are derived from different norms:", "mime": "application/pdf"}, {"id": "esrj-36938", "words": "4634", "extension": ".pdf", "flesch": "54", "author": "Khalil, Ahmed Bakr; Toni, Mostafa; Hassoup, Awad; Mansour, Khamis", "title": "Analysis of aeromagnetic data for interpretation of seismicity at Fayoum-Cairo area, Egypt", "date": "2014", "keywords": "aeromagnetic; anomalies; area; cairo; data; earthquake; egypt; magnetic; map", "summary": "RTP is a filtering technique used to align the peaks and gradients of magnetic anomalies directly over their sources. The high magnetic anomalies in the northwestern side can be attributed to the occurrence of basic intrusions of the subsurface with high magnetic contents; the axes of the fault as well as the directions of magnetic anomalies are trend to the NW-SE and NE-SW in the northwestern, central and the southern parts.", "mime": "application/pdf"}, {"id": "esrj-37073", "words": "6119", "extension": ".pdf", "flesch": "55", "author": "Tongal, Hakan", "title": "Nonlinear forecasting of stream flows using a chaotic approach and artificial neural networks", "date": "2013", "keywords": "correlation; dimension; ffnn; flow; forecasting; function; model; number; river; series; time; values", "summary": "Additionally, it was found that the correlation dimension (if it existed) could successfully be used in time series where the determina- tion of the input structure is difficult because of high inter-dependency, as in stream flow time series. Artificial neural network model as a potential alternative for groundwater salinity forecasting.", "mime": "application/pdf"}, {"id": "esrj-37238", "words": "5401", "extension": ".pdf", "flesch": "68", "author": "Ubeid, Khalid Fathi; Albatta, Alhasan S.", "title": "Sand dunes of the Gaza Strip (southwestern Palestine): morphology, textural characteristics and associated environmental impacts", "date": "2014", "keywords": "area; dunes; figure; gaza; gaza strip; israel; palestine; sand; sand dunes; size; strip; town", "summary": "Regional map showing the distribution of sand dunes in the northern Sinai Desert, which extends from the Nile Delta eastwards into northwestern Negev and Gaza Strip (after Dan & Raz, 1970; Bartov, 1990).The large NE arrow marks the westerly winds prevalent during sand incursion (e.g. Amit et al., 2006; Enzel et al., 2010). Sand dunes are concentrated in Africa, Australia and Asia, where approximately half of the sand dunes have stable, fixed configurations.", "mime": "application/pdf"}, {"id": "esrj-37601", "words": "5187", "extension": ".pdf", "flesch": "56", "author": "Huang, Pinghua; Han, Sumin", "title": "Assessment by multivariate analysis of groundwater\u2013surface water interactions in the Coal-mining Exploring District, China", "date": "2016", "keywords": "analysis; china; coal; district; factor; groundwater; group; karst; mining; multivariate; samples; water", "summary": "Monitored parameters and analytical methods 71 groups of water samples were collected from the coal-mining district in 2008, 2010 and 2011, including surface water samples, spring samples of Mount Taihang, deep karst groundwater, deep fissure water and shallow pore water. The contour map of the second factor scores shows that karst water and spring of the GA group is at the same area, indicating that karst water mainly accept recharging from spring (Fig 8 (b)).The euclidean distance in the GA group clustering is the shortest, indicating that deep karst water and spring experienced the roughly same hydrogeochemical environment.", "mime": "application/pdf"}, {"id": "esrj-37612", "words": "3944", "extension": ".pdf", "flesch": "55", "author": "Mori, H; Shimoyama, S; Soejima, K", "title": "The geomorphic history of the Ainoura plain, Kyushu, Japan, based on excavation of the Monzen ruins", "date": "2012", "keywords": "ainoura; figure; japan; kyushu; layers; monzen; mud; nagasaki; plain; river; ruins; sand", "summary": "This included the monzen ruins, located in the middle of the Ainoura plain (N 33\u02da12\u201906\u2019\u2019, E129\u02da40\u201909\u2019\u2019, WGS84), where the Ainoura River curves to the south (Figure 2). This area lacks flatlands, but there are occasional wide river val- leys; the Ainoura plain in western Sasebo, in which monzen ruins are located, is one of these.", "mime": "application/pdf"}, {"id": "esrj-37613", "words": "4421", "extension": ".pdf", "flesch": "58", "author": "Akbulut, S; Nese, Z; Arasan, S", "title": "Surfactant modified clays\u2019 consistency limits and contact angles", "date": "2012", "keywords": "angle; anionic; cationic; clay; consistency; contact; figure; limit; liquid; plasticity; surface; surfactant", "summary": "a) Contact angle image of natural clay (35o); b) Contact angle image of TMG (10%) modified clay (14o); c) Contact angle image of QEFA (15%) modified clay (54o) Figure 10.", "mime": "application/pdf"}, {"id": "esrj-37614", "words": "5015", "extension": ".pdf", "flesch": "58", "author": "\u00d6zt\u00fcrk, Serkan", "title": "Statistical correlation between b-value and fractal dimension regarding Turkish epicentre distribution", "date": "2012", "keywords": "a.o; correlation; dimension; earthquakes; fault; fractal; regions; turkey; turkish; value; zone; \u00f6ncel", "summary": "Orthogonal regression was used to estimate a suitable statistical correlation between two seismotec- tonic parameters; the Dc = 2.44 - 0.30*b relationship was obtained with a strong negative correlation (r = -0.82) between b-value and Dc-value for Turkish earthquake distribution. Results and Discussion An investigation of seismotectonic parameters in and around Tur- key involved using the b-value of the g-R relationship (Equation 1) and fractal correlation dimension Dc-value of Turkish earthquake distribution from 1970 to 2011; Turkey was divided into 55 seismic source zones in an attempt to find an empirical relationship between b-value and Dc-value.", "mime": "application/pdf"}, {"id": "esrj-37615", "words": "2890", "extension": ".pdf", "flesch": "56", "author": "Dahrazma, B; Kharghani, M", "title": "The impacts of alkaline mine drainage on Ba, Cr, Ni, Pb and Zn concentration in the water resources of the Takht coal mine, Iran", "date": "2012", "keywords": "alkaline; coal; concentration; downstream; metals; water", "summary": "Tunnel effluent and drainage of tailing washing were the main sources of pollution, containing heavy metals Ba, Cr, Ni, Pb and Zn. E-mail: behnaz_dahrazma@yahoo.com ABSTRACT The release of heavy metals into the environment represents one of the most important environmental effects involved in extracting coal; it needs to be studied more fully.", "mime": "application/pdf"}, {"id": "esrj-37616", "words": "4809", "extension": ".pdf", "flesch": "58", "author": "Goudarzi, Ali; Riahi, M A", "title": "Adaptive seismic ground roll attenuation using the double density dual tree discrete wavelet transform (DWT) method", "date": "2012", "keywords": "data; dddtdwt; domain; dwt; frequency; ground; method; noise; roll; section; selesnick; signal; transform; wavelet", "summary": "The main point concerned the choice of transform (in the chain) to be applied before discrete wavelet transform. F. , 2004, Rational multires- olution analysis and fast wavelet transform: application to wavelet shrinkage denoising.", "mime": "application/pdf"}, {"id": "esrj-37617", "words": "11017", "extension": ".pdf", "flesch": "57", "author": "Ephraim, Bassey Edem", "title": "Investigation of the geochemical signatures and conditions of formation of metacarbonate rocks occurring within the Mamfe embayment of south-eastern Nigeria", "date": "2012", "keywords": "al2o3; cameroon; cao; concentration; data; dolomite; earth; eastern; elements; embayment; figure; log; mamfe; metacarbonate; metacarbonate rocks; mgo; nigeria; nsofang; ppm; rock; sample; table; trace", "summary": "These values are considered to fall within acceptable limits for carbonate rocks that are well-preserved and unaffected by post-depositional alteration (Derry et al., 1992; Kaufman et al., 1992, 1993; Kaufman and Knoll, 1995). the low Al2O3 concentration measured in Nsofang rock is interpreted as being indicative of a low energy environment.", "mime": "application/pdf"}, {"id": "esrj-37618", "words": "6954", "extension": ".pdf", "flesch": "61", "author": "Okunlola, O; Idowu, O", "title": "The geochemistry of claystone-shale deposits from the Maastritchian Patti formation, Southern Bida basin, Nigeria", "date": "2012", "keywords": "al2o3; basin; bida; claystone; claystone samples; element; formation; nigeria; patti; ratios; rocks; samples; shale; shale samples; sio2; tio2", "summary": "major element abundance showed that shale samples had SiO2 (61.26%), Al2O3 (16.88%) and Fe2O3 (3.75%), constituting more than 79% of the bulk chemical composition while claystone samples contained SiO2 (67.79%), Al2O3 (17.81%) and Fe2O3 (1.67%). major element abundance showed that the shale samples had SiO2 (61.26%), Al2O3 (16.88%) and Fe2O3 (3.75%) constituting more than 79% of bulk chemical composition whilst claystone samples contained SiO2 (67.79%), Al2O3 (17.81%) and Fe2O3 (1.67%).", "mime": "application/pdf"}, {"id": "esrj-37619", "words": "9099", "extension": ".pdf", "flesch": "64", "author": "Ogala, Jude", "title": "The geochemistry of lignite from the Neogene Ogwashi-Asaba Formation, Niger Delta Basin, southern Nigeria", "date": "2012", "keywords": "analysis; asaba; basin; coal; elements; et al; factor; formation; fus; geology; icp; lignite; nigeria; ogwashi; samples; table; trace; trace elements", "summary": "Trace elements indicated the following concentration range in parts per million (ppm): Be (2-5), Zr (4-63), Sr (5-22), y (13-68), Ba (9-89), V (4-216), Zn (17- 176), Ni (8-28), Co (5-13), Cr (2-31), Cu (1-22) and Ga (1-14). Several researchers have attempted to study the geochemical features of trace elements contained in coal to understand and evaluate trace elements\u2019 mode of occurrence as well as their behaviour during combustion (Gluskoter et al., 1977; Swaine, 1990; Finkelman, 1994; meij, 1995; Spears and Zheng, 1999; Davidson, 2000; Vassilev et al., 2001).", "mime": "application/pdf"}, {"id": "esrj-37620", "words": "721", "extension": ".pdf", "flesch": "23", "author": "Vargas, Carlos", "title": "Letter from the Editor", "date": "2012", "keywords": "events; society", "summary": "Four pieces of geochemical work, one of them related to the effects of runoff from a coal mine in Iran and the other three related to the environmental characterisation of several Mesozoic and Palaeo- zoic formations in Nigeria and Cameroon, emphasise new geological knowledge emerging from Asia and Africa. On a different matter, I would like to take this opportunity to invite the geoscientific community to participate in two interesting events to be held in Colombia during 2013: - The 14th Colombian Congress of Geology to be held in Bogota (July 31st to August 2nd 2013) will offer an appropriate scenario for presenting and discussing recent results regarding knowled- ge of Colombian geology, associated with this traditional meeting, will be held the Simposio de Exploradores, that will allow to identify new exploration horizons in O&G and mining in Latin America and Caribbean.", "mime": "application/pdf"}, {"id": "esrj-37621", "words": "258", "extension": ".pdf", "flesch": "50", "author": "Vargas, Carlos", "title": "Corrigendum", "date": "2012", "keywords": "earth", "summary": "No 2 del 2011 de la revista Earth Science research Journal (ESRJ) se public\u00f3 el arti- culo titulado Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel en el cual no se hace un correcto pie de p\u00e1gina de la figura 1, ya que no es tomada de (Groot, 1992) como reza la misma, sino que es tomada de la tesis de pregrado titulada DATACI\u00d3N", "mime": "application/pdf"}, {"id": "esrj-38666", "words": "9957", "extension": ".pdf", "flesch": "62", "author": "Zhang, Xiaoning; Dong, Yunpeng", "title": "The geological and geodynamic condition on the formation of the Dabashan thrust nappe structure: Based on FLAC numerical modelling", "date": "2016", "keywords": "arc; area; belt; china; dabashan; deformation; displacement; dong et; et al; fault; fig; material; model; nappe; north; qinling; south; structure; tectonic; thrust; zhang; zhang et", "summary": "Ames et al., 1996; Zhang et al., 1996a; Hacker et al., 1998; Meng and Zhang, 1999; Faure et al., 2001; Zhang et al., 2001; Ratschbacher et al., 2003, 2006; Dong et al., 2011a,b,c, 2012a,b; Bader et al., 2013a,b; Dong et al., 2013; Li et al., 2015; Dong et al., 2016). According to previous studies (e.g. Jiang et al., 1982; Xu et al., 1986; He et al., 1997, 1999; Zhang et al., 2001; Wang et al., 2003; Dong et al., 2006; Li et al., 2006; Liu et al., 2006; Luo et al., 2007; Dong et al., 2008; Zhang et al., 2010; Dong et al., 2011b; Wang et al., 2011, 2013), we assume that the bending conditions might include: 1) the North Qinling moves towards south; 2) the Yangtze Block moves towards north; 3) the irregular margin of blocks produces dextral shearing and lateral extrusions in Dabashan area; 4) Hannan- Micangshan terrane, Foping dome, Shennongjia-Huangling anticline, as well as Wudang dome act as baffles to hold down the thrust nappe (Fig. 2).", "mime": "application/pdf"}, {"id": "esrj-38712", "words": "6253", "extension": ".pdf", "flesch": "57", "author": "Momeni, Ehsan; Nazir, Ramli; Jahed Armaghani, Danial; Maizir, Harnedi", "title": "Application of Artificial Neural Network for Predicting Shaft and Tip Resistances of Concrete Piles", "date": "2015", "keywords": "ann; artificial; bearing; bearing capacity; capacity; data; engineering; figure; model; network; pda; pile; rmse; shaft; testing; tip", "summary": "There are numerous methods for assessing pile bearing capacity and its distribution. In another study, Lee and Lee (1995) employed ANN for estimation of pile bearing capacity.", "mime": "application/pdf"}, {"id": "esrj-38760", "words": "6196", "extension": ".pdf", "flesch": "47", "author": "Mu\u00f1oz, Enrique; Tume, Pedro; Ort\u00edz, Gabriel", "title": "Uncertainty in rainfall input data in a conceptual water balance model: effects on outputs and implications for predictability", "date": "2014", "keywords": "bands; basin; calibration; data; figure; flows; model; outputs; parameters; period; rainfall; range; uncertainty; water", "summary": "Additionally, to quantify the propagation of rainfall uncertainty effects, Table 3 presents a summary of the average width of the uncertainty bands (in m3/s) for the different variations in the rainfall data. As hydrological models become more prevalent in water resources planning and management, increasing levels of detail and precision are needed.", "mime": "application/pdf"}, {"id": "esrj-38925", "words": "5419", "extension": ".pdf", "flesch": "53", "author": "Esper, Maria Yanina", "title": "Debris flow susceptibility mapping in a portion of the Andes and Preandes of San Juan, Argentina using frequency ratio and logistic regression models", "date": "2013", "keywords": "area; argentina; debris; debris flow; elevation; figure; flow; frequency; models; radiation; ratio; regression; san; slope; susceptibility", "summary": "In this study, the frequency ratio and logistic regression models are applied and verified for the analysis of debris flow susceptibility in a portion of the Dry Frontal Andes and Occidental Preandes of San Juan at approximately 30\u00b0S latitude, through aninvestigation based on a Geographic Information System (GIS). Both models helped to produce debris flow susceptibility maps that classified susceptibility into five categories: very low, low, mo- derate, high and very high.", "mime": "application/pdf"}, {"id": "esrj-38952", "words": "3309", "extension": ".pdf", "flesch": "54", "author": "Lin, Jyh-Woei", "title": "Detecting Ionospheric Precursors of a Deep Earthquake (378.8 km) on 7 July 2013, M w=7.2, in Papua New Guinea under a Geomagnetic Storm: Two-Dimensional Principal Component Analysis", "date": "2013", "keywords": "2dpca; anomalies; component; data; earthquake; july; principal; tec; time", "summary": "TEC data were examined to detect TEC precursors, while GIMs were only used to observe the TEC situation. Acknowledgements The author is grateful to the NASA Global Differential GPS system (GDGPS) for its useful references and TEC data and to the memory of his own life in Germany as a student from 1996-2000.", "mime": "application/pdf"}, {"id": "esrj-39703", "words": "7508", "extension": ".pdf", "flesch": "57", "author": "Oha, Ifeanyi Andrew; Onuoha, Kalu Mosto; Dada, Silas Sunday", "title": "Contrasting styles of lead-zinc-barium mineralization in the Lower Benue Trough, Southeastern Nigeria", "date": "2017", "keywords": "area; barite; barium; benue; benue trough; deposits; gabu; geology; group; ishiagu; lead; mineralization; nigeria; rocks; shales; trough; wanikande; zinc", "summary": "ABSTRACT Keywords: Lead-Zinc-Barium mineralization, Benue Trough, epigenetic, vein deposits. RESUMEN Palabras clave: Mineralizaci\u00f3n Plomo-Zinc-Bario, Benue Trough, Epig\u00e9nesis, Vetas.", "mime": "application/pdf"}, {"id": "esrj-39716", "words": "5856", "extension": ".pdf", "flesch": "57", "author": "Galvis, Laura Viviana; Corzo Rueda, Reinel; Arguello, Henry", "title": "Caving Depth Classification by Feature Extraction in Cuttings Images", "date": "2014", "keywords": "caving; classes; classification; depth; features; figure; gabor; images; matrix; performance; rock; set; training", "summary": "To date, depth estimation based on caving rock images has not been treated in the literature. Rock images.", "mime": "application/pdf"}, {"id": "esrj-39966", "words": "3506", "extension": ".pdf", "flesch": "54", "author": "Balambal, Usha; Mudgal, B. V.", "title": "Climate variability and its impacts on runoff in the Kosasthaliyar sub-basin, India", "date": "2014", "keywords": "basin; change; chennai; climate; data; future; model; rainfall; runoff; study; water", "summary": "These downscaled data are used to study runoff changes due to climate change for the Kosasthaliyar sub-basin in South India. 49Climate Variability and its impacts on runoff in the Kosasthaliyar sub-basin, India Conclusions In this study, runoff changes due to climate change were investigated for the Kosasthaliyar sub-basin, South India.", "mime": "application/pdf"}, {"id": "esrj-40335", "words": "742", "extension": ".pdf", "flesch": "45", "author": "Vargas J., Carlos A.", "title": "Letter from the editor", "date": "2013", "keywords": "area; iran; journal; study", "summary": "Coming from Turkey, other study shows the preparation of vulnerability maps to prevent contami- nation in aquifers. Results of this work showed how high salinity levels may have formed in near sur- face aquifers in natural inland delta environments in semi-arid areas.", "mime": "application/pdf"}, {"id": "esrj-40421", "words": "5137", "extension": ".pdf", "flesch": "51", "author": "Muzio, Rossana; Scaglia, Fernando; Masquelin, Henri", "title": "Titaniferous magnetite and barite from the San Gregorio de Polanco dike swarm, Paran\u00e1 Magmatic Province, Uruguay", "date": "2013", "keywords": "barite; crystallization; crystals; dikes; eds; et al; figure; magmatic; magnetite; masquelin; paran\u00e1; plagioclase; population; province; uruguay", "summary": "The intrusive rocks resulting from mafic dike swarms and sills are known as the Cuar\u00f3 Formation (Preciozzi et al., 1985), and they can be grouped according to their three main areas of occurrence: Melo, Tacuaremb\u00f3 and San Gregorio de Polanco. Good exposures are infrequent and occur mainly near the village of San Gregorio de Polanco (Figure 1c).", "mime": "application/pdf"}, {"id": "esrj-40664", "words": "5391", "extension": ".pdf", "flesch": "60", "author": "Arian, Mehran", "title": "Seismotectonic-Geologic Hazards Zoning of Iran", "date": "2015", "keywords": "alborz; arian; basin; earthquakes; east; fig; hazards; iran; journal; province; tectonics", "summary": "East Iran province The dominant structural trend in East Iran province (Fig. 2) is N-S. From tectonics point of view, this province contains a collision belt brought about by eastward subduction of East-Central Iran miniplate (Fig. 1) beneath Central blocks of Afghanistan. East Iran province is hit by moderate to high earthquakes with middle to high (on fault terminations) frequency, medium repeat time and down to 15Km focal depth.", "mime": "application/pdf"}, {"id": "esrj-40830", "words": "3938", "extension": ".pdf", "flesch": "55", "author": "Dong, Qian; Du, Yangsong; Pang, Zhenshan; Miao, Wenrui; Tu, Wei", "title": "Composition of biotite within the Wushan granodiorite, Jiangxi Province, China: Petrogenetic and metallogenetic implications", "date": "2014", "keywords": "biotites; china; conditions; copper; deposit; figure; granodiorite; wushan; wushan granodiorite", "summary": "In addition, Wushan granodiorite biotites are magnesian, which also supports an I-type granite classification for this intrusion. The crystallization temperatures of Wushan biotites ranged from 720\u00b0C to 750\u00b0C, with crystallization under log fO2 values of \u201311.6 to \u201312.5.", "mime": "application/pdf"}, {"id": "esrj-40847", "words": "6109", "extension": ".pdf", "flesch": "47", "author": "R\u00edos, Carlos Alberto; Castellanos, \u00d3scar Mauricio", "title": "Petrologic significance of Fe-rich staurolite in pelitic schists of the Silgar\u00e1 Formation, Santander Massif", "date": "2016", "keywords": "biotite; formation; garnet; massif; muscovite; quartz; reaction; rocks; santander; schists; silgar\u00e1; staurolite", "summary": "In contrast, staurolite forming reactions typically have a lower variance than garnet forming reactions (Sanislav and Shah, 2010). It is usually abundant along with garnet, particularly in the transition between the garnet and staurolite metamorphic zones.", "mime": "application/pdf"}, {"id": "esrj-40995", "words": "2301", "extension": ".pdf", "flesch": "63", "author": "Kahraman, Bayram", "title": "Determining Optimal Polypropylene Fiber Dosages In Sprayed Concrete For Mining And Civil Engineering Applications", "date": "2015", "keywords": "absorption; cost; energy; load; shotcrete", "summary": "Peak load and energy absorption of test samples When the effect of PF in a mixture is discussed, the tests show us increasing of PF dosage have a positive effect on energy absorption of shotcrete lining. According to the achieved results, by the increasing of PF dosage a linear rise of energy absorption of shotcrete linings is observed.", "mime": "application/pdf"}, {"id": "esrj-40996", "words": "5803", "extension": ".pdf", "flesch": "51", "author": "Golian, Saeed; Ruigar, Hossein", "title": "Assessing the correlation between climate signals and monthly mean and extreme precipitation and discharge of Golestan Dam Watershed", "date": "2015", "keywords": "climate; correlation; data; discharge; enso; galikesh; lag; months; oscillation; precipitation; rainfall; sea; signals; slp; sst", "summary": "By analyzing SST data, maximum correlation coefficients for precipitation data of Tangrah, Tamer, and Galikesh raingauges was equaled to 0.455, 0.478, and 0.44 with 6, 3, and 9 months of lag, respectively. The maximum values of the correlation between SST data of different locations presented in Table 1 and precipitation and discharge data are shown in Figures (3) and (4), respectively.", "mime": "application/pdf"}, {"id": "esrj-41078", "words": "12026", "extension": ".pdf", "flesch": "59", "author": "Corchete, V\u00edctor", "title": "Shear-wave velocity structure of Australia from Rayleigh-wave analysis", "date": "2014", "keywords": "area; australia; depth; depth range; dispersion; figure; group velocity; study; values; velocity; velocity structure; velocity values; wave; wave velocity", "summary": "Regionalization of group velocities The above-described group velocities constitute the dispersion curves to be considered for regionalization. The geographical distribution of group velocities shown in Figure 6, presents the highest values for the consolidated and old structures.", "mime": "application/pdf"}, {"id": "esrj-41079", "words": "10005", "extension": ".pdf", "flesch": "60", "author": "Corchete, V.", "title": "Shear-wave Velocity Structure of Greenland from Rayleigh-wave Analysis", "date": "2016", "keywords": "area; depth; depth range; figure; greenland; range; study; study area; values; velocity; velocity structure; velocity values; wave; wave velocity", "summary": "(d) Group velocities calculated from the group times and the epicentral distance (group velocity is the epicentral distance divided by the group time for each period). Regionalization of group velocities The above-described group velocities constitute the dispersion curves to be considered for regionalization.", "mime": "application/pdf"}, {"id": "esrj-41083", "words": "6051", "extension": ".pdf", "flesch": "55", "author": "Ochoa, Luis H.; Ni\u00f1o, Luis F.; Vargas, Carlos A.", "title": "Severity Classification of a Seismic Event based on the Magnitude-Distance Ratio Using Only One Seismological Station", "date": "2014", "keywords": "algorithm; america; b b; bulletin; data; distance; events; magnitude; results; signal; society; station; wave", "summary": "Class B events were classified with high accuracy, but Class A events were wrongly classified in 31% of the cases. Appendix I: List of used events and parameters.", "mime": "application/pdf"}, {"id": "esrj-41173", "words": "3786", "extension": ".pdf", "flesch": "52", "author": "Baba, Khadija; Bahi, Lahcen; Ouadif, Latifa", "title": "Geostatistical Analysis for delineating sterile inclusions in Sidi Chennane' phosphatic series, Morrocco", "date": "2014", "keywords": "baba; data; figure; kriging; los; model; phosphate; resistivity; study", "summary": "Resistivity data were analyzed using geostatistics (variogram) in order to describe and quantify the spatial continuity. Analysis of phosphate deposit disturbances using the horizontal gradient responses of resistivity data (Oulad Abdoune Morocco).", "mime": "application/pdf"}, {"id": "esrj-41810", "words": "5064", "extension": ".pdf", "flesch": "53", "author": "Buyuksarac, Ayd\u0131n; Over, Semir; Genes, Mehmet Cemal; Bikce, Murat; Kacin, Selcuk; Bektas, Ozcan", "title": "Estimating shear wave velocity using acceleration data in Antakya (Turkey)", "date": "2014", "keywords": "acceleration; amplification; antakya; clay; data; earthquake; ground; response; site; soil; station; velocity", "summary": "Thus, the response spectral values S (Spv, Spa and Sd) (Eq. 1) for earthquake ground motion should be considered to be a function expressed in the following form (Clough and Penzien, 1993; Consequently, the effect of the type of soil on earthquake ground shaking is an important component for a seismic hazard analysis.", "mime": "application/pdf"}, {"id": "esrj-41988", "words": "5475", "extension": ".pdf", "flesch": "51", "author": "Mokhtari, Maryam; Heshmati R., Ali Akbar; Shariatmadari, Nader", "title": "Compression ratio of municipal solid waste simulation using artificial neural network and adaptive neurofuzzy system", "date": "2014", "keywords": "anfis; ann; compression; data; input; layer; model; municipal; network; ratio; testing; training; values; waste", "summary": "Key words: Municipal solid waste, Compression ratio, Physical properties, ANFIS model, ANN model, Statistical criteria The compression ratio of Municipal Solid Waste (MSW) is an essential parameter for evaluation of waste settlement. Earlier experimental works introduced such parameter as dry unit weight, water content, and contribution percentage of biodegradable organic materials (paper, food wastes, and yard wastes) as the most significant factors which affect the compressibility of municipal solid waste.", "mime": "application/pdf"}, {"id": "esrj-42020", "words": "8438", "extension": ".pdf", "flesch": "47", "author": "R\u00edos, Carlos Alberto; Castellanos, \u00d3scar Mauricio; Chac\u00f3n, Carlos Alberto", "title": "Ti-clinohumite in the Ci\u00e9naga skarn-type mineralogy, Sierra Nevada de Santa Marta Massif (Colombia): Occurrence and petrologic significance", "date": "2015", "keywords": "calcite; ci\u00e9naga; clinochlore; clinohumite; colombia; diopside; dolomite; figure; fluid; forsterite; marbles; marta; mineral; mineralogy; occurrence; rocks; santa; sierra; skarn; wt%", "summary": "The process in which the fluid composition evolved in response to mineral reactions is called buffering. In this study, we report and discuss data concerning this unusual humite-group mineral at the Ci\u00e9naga skarn, Sierra Nevada de Santa Marta (SNSM) massif, with the aim of characterize its occurrence and determine its petrologic significance.", "mime": "application/pdf"}, {"id": "esrj-42492", "words": "6439", "extension": ".pdf", "flesch": "59", "author": "Bensoula, Mohamed; Missoum, Hanifi; Bendani, Karim", "title": "Critical undrained shear strength of sand-silt mixtures under monotonic loading", "date": "2014", "keywords": "content; equivalent; fines; liquefaction; mixtures; ratio; sand; shear; silt; soil; strength; stress", "summary": "The understanding of soil liquefaction is continuously being revised due to new field and laboratory observations. \u201cInitiation of soil liquefaction under static loading conditions.\u201d", "mime": "application/pdf"}, {"id": "esrj-43128", "words": "5070", "extension": ".pdf", "flesch": "58", "author": "Mohammad, Alsharifa Hind; Alkurdi, Omid; Salameh, Elias", "title": "The effects of ex-situ oil shale mining on groundwater resources in Siwaqa area, southern Jordan, using DRASTIC index and hydrochemical water assessment", "date": "2016", "keywords": "aquifer; area; formation; groundwater; jordan; limestone; oil; resources; shale; study; study area; table; vulnerability; water", "summary": "Energy resources in addition to water resources are the most limited resources in Jordan, being one of the fourth poorest countries in water resources, and limitation of surface water resources put huge pressure on groundwater which is the main resource there. High expenses and the increasing prices of oil over all worlds increase the feasibility to mining the oil shale that exists in southern Jordan area, Siwaqa.", "mime": "application/pdf"}, {"id": "esrj-43199", "words": "7598", "extension": ".pdf", "flesch": "53", "author": "Samadianfard, Saeed; Kazemi, Honeyeh; Kisi, Ozgur; Liu, Wen-Cheng", "title": "Water temperature prediction in a subtropical subalpine lake using soft computing techniques", "date": "2016", "keywords": "anfis; ann; data; figure; gep; lake; model; network; parameters; prediction; results; surface; table; techniques; temperature; water; water temperature", "summary": "Also, some attempts have been made to relate lake water temperature to meteorological parameters such as air temperature. A review of statistical water temperature models.", "mime": "application/pdf"}, {"id": "esrj-43841", "words": "7078", "extension": ".pdf", "flesch": "55", "author": "Seutloali, Khoboso Elizabeth; Reinhard Beckedahl, Heinrich", "title": "A Review Of Road-Related Soil Erosion: An Assessment Of Causes, Evaluation Techniques And Available Control Measures", "date": "2015", "keywords": "control; cover; erosion; erosion control; et al; loss; processes; rainfall; road; runoff; sediment; slopes; soil; soil erosion; surface; vegetation; water", "summary": "Three hydro- seeding revegetation techniques for soil erosion control on anthropic steep slopes, Land degradation & development. For comprehensive land management decisions and monitoring strategies, a review of work that has been done to assess soil erosion due to roads is critical.", "mime": "application/pdf"}, {"id": "esrj-44429", "words": "5061", "extension": ".pdf", "flesch": "47", "author": "Mari\u00f1o Martinez, Jorge Eliecer; Amaya, Erika", "title": "Lithofacies cyclicity determination in the guaduas formation (Colombia) using Markov chains", "date": "2016", "keywords": "amaya; chain; coal; fluvial; formation; guaduas; lithofacies; markov; matrix; section; transition", "summary": "A partir de los an\u00e1lisis de facies y de las cadenas de Markov, es evidente que la formaci\u00f3n Guaduas es una secuencia c\u00edclica en la que las repeticiones de facies de Markov son consistentes con el an\u00e1lisis de litofacies en estudios estratigr\u00e1ficos anteriores. Para cada una de estas secciones, las matrices de las cadenas de Markov presentan una fuerte interacci\u00f3n entre facies mareales y facies fluviales, especialmente en la matriz de Penas de Sutatausa, donde la facie 6, compuesta de dep\u00f3sitos mareales, aparece varias veces.", "mime": "application/pdf"}, {"id": "esrj-44491", "words": "5639", "extension": ".pdf", "flesch": "54", "author": "Zare, Maryam", "title": "Spatial distribution of sediment pollution in the Khajeh Kory River using Kriging and GIS", "date": "2014", "keywords": "area; contamination; data; enrichment; khajeh; kory; map; method; pollution; river; sample; sediments", "summary": "Conclusion: The conducted studies revealed that geochemical characteristics and river contamination differ at various points. Using this method, the length of the river from its source to the sea estuary was characterized based on the contamination of heavy metals, and contaminated and unpolluted areas in river sediments could be observed.", "mime": "application/pdf"}, {"id": "esrj-44522", "words": "112912", "extension": ".pdf", "flesch": "46", "author": "Third Latin-American Congress of Seismology, Third Latin-American Congress of Seismol", "title": "Proceedings. First Assembly of the Latin-America and Caribbean Seismological Commission - LACSC", "date": "2014", "keywords": "3d de; abril de; abstract; abstract el; aceler\u00f3grafos de; adem\u00e1s de; agosto de; america; analysis; antes de; an\u00e1lisis de; aplicaci\u00f3n de; area; atenuaci\u00f3n de; aut\u00f3noma de; base de; bloque de; brazil; calidad de; campo de; caracterizaci\u00f3n de; caribbean; caso de; central de; cerca de; ciencias departamento; ciudad de; colombiano; como; como de; como la; comportamiento de; con el; con la; con los; con un; conjunto de; crustal; cuenca de; curvas de; c\u00e1lculo de; data; de aceleraci\u00f3n; de actividad; de acuerdo; de adquisici\u00f3n; de alta; de amenaza; de amplitudes; de apoyo; de armenia; de baja; de bogot\u00e1; de cada; de calibraci\u00f3n; de caracas; de chile; de ciencias; de colombia; de completitud; de concepci\u00f3n; de construcci\u00f3n; de corte; de costa; de c\u00facuta; de datos; de densidad; de desastres; de desplazamiento; de diferencias; de enero; de esfuerzos; de estaciones; de estos; de eventos; de febrero; de fluidos; de fonseca; de forma; de fuentes; de geoamenazas; de geociencias; de geof\u00edsica; de gesti\u00f3n; de ge\u00f3fonos; de gran; de informaci\u00f3n; de ingenier\u00eda; de intensidad; de inundaci\u00f3n; de investigaciones; de j.; de jalisco; de janeiro; de junio; de la; de los; de managua; de manera; de manto; de mecanismos; de mediciones; de monitoreo; de m\u00e9xico; de nazca; de nicaragua; de nuevas; de octubre; de ondas; de panam\u00e1; de popay\u00e1n; de prevenci\u00f3n; de protecci\u00f3n; de p\u00f3s; de rad\u00f3n; de rayleigh; de referencia; de riesgos; de rivera; de roca; de ruido; de san; de santa; de se\u00f1ales; de sitio; de so2; de su; de s\u00e3o; de tipo; de trabajo; de tsunami; de un; de urab\u00e1; de velocidad; de venezuela; del; departamento de; depth; desarrollo de; despu\u00e9s de; determinaci\u00f3n de; din\u00e1mica de; direcci\u00f3n de; dispersi\u00f3n de; distribuci\u00f3n de; earth sciences; earthquake; el cual; el de; el departamento; el m\u00e9todo; el sismo; el valle; el volc\u00e1n; elaboraci\u00f3n de; elkin de; en el; en la; en los; en un; entre el; entre la; equipos de; este; estudio de; evaluaci\u00f3n de; events; existencia de; facultad de; fault; field; funcionamiento de; generaci\u00f3n de; geociencias research; geol\u00f3gica de; geol\u00f3gico; geophysics earth; geophysics el; golfo de; hazard; herramienta de; hist\u00f3rica de; implementaci\u00f3n de; instalaci\u00f3n de; instituto de; inversion; inversi\u00f3n de; issue; j. vol; july; keywords; km y; la ciudad; la distribuci\u00f3n; la estructura; la falla; la fuente; la informaci\u00f3n; la inversi\u00f3n; la red; la regi\u00f3n; la sismicidad; la zona; laboratorio de; largo de; las; localizaci\u00f3n de; los sismos; m de; magnitud de; magnitude; mantle; mapas de; mayo de; medio de; modelo de; models; momento de; motion; m\u00e1s de; m\u00e9todo de; nacional de; network; nevada de; new; nivel de; norte de; noviembre de; observatorio de; occidente de; oriente de; para el; para la; para los; parte de; partir; par\u00e1metros de; periodo de; pico de; placa de; plate; por el; por la; presencia de; procesamiento de; proceso de; programa de; propagaci\u00f3n de; que el; que la; que se; rango de; red de; redes de; region; regional; registros de; regi\u00f3n de; relaci\u00f3n de; research group; research journal; results; rio de; r\u00e9gimen de; sciences research; seismic; seismicity; servicio; simulaci\u00f3n de; sismo de; sismol\u00f3gico de; sismos; sistema de; sobre la; source; south; stations; structure; subduction; surface; s\u00edsmica de; s\u00edsmico; tasas de; temporal de; terremoto de; time; tomograf\u00eda de; t\u00e9cnicas de; universidad de; universidad nacional; university; uso de; valle de; valores de; velocity; venezolana de; volcano; volc\u00e1nica de; vulcanol\u00f3gico y; wave; y con; y de; y el; y en; y la; y los; y que; y se; y sismol\u00f3gico; y su; y una; zona de; zone; \u00e1rea de", "summary": "As\u00ed mismo se detectaron incrementos antes de la ocurrencia de enjambres s\u00edsmicos de tipo volcano-tect\u00f3nico. antonio.gomez@mi.ingv.it ABSTRACT El Piedemonte Llanero colombiano est\u00e1 configurado geomorfol\u00f3gicamente por el Sistema de Fallas de la Falla Frontal de la Cordillera Oriental (SFFFCO).", "mime": "application/pdf"}, {"id": "esrj-44574", "words": "6844", "extension": ".pdf", "flesch": "55", "author": "Tenzer, Robert; Bagherbandi, Mohammad; Sj\u00f6berg, Lars E; Nov\u00e1k, Pavel", "title": "Isostatic Crustal Thickness Under The Tibetan Plateau And Himalayas From Satellite Gravity Gradiometry Data", "date": "2015", "keywords": "bagherbandi; correction; crustal; data; density; depths; fig; gradient; gravity; gravity gradient; model; moho; sj\u00f6berg; tenzer; vmm", "summary": "Fig.7 VMM Moho depths (in km) corrected for the non-isostatic effect. Isostatic gravity gradients We applied the gravimetric forward modeling technique to compute the VMM isostatic gravity gradient with a spectral resolution complete to degree 250 of spherical harmonics.", "mime": "application/pdf"}, {"id": "esrj-44642", "words": "4860", "extension": ".pdf", "flesch": "46", "author": "Liang, Wang; Zhengfu, Bian; Hongquan, Chen", "title": "Land ecological security assessment for Yancheng city based on catastrophe theory", "date": "2014", "keywords": "assessment; catastrophe; city; control; eco; indices; land; level; model; security; state; theory; yancheng", "summary": "Using the catastrophe theory and pressure-state- response (PSR) model, the purpose of the research was to judge the degree of land ecological security in Yancheng city from 2002 to 2011 and determine the requirements to ensure the sustainable development of this region. The objective is to demonstrate the method and evaluate the degree of land ecological security in Yancheng city from 2002 to 2011 as a tool to determine the requirements to ensure sustainable development of this region.", "mime": "application/pdf"}, {"id": "esrj-44714", "words": "3073", "extension": ".pdf", "flesch": "58", "author": "Raja, Viji", "title": "Gis Based SCS - CN Method For Estimating Runoff In Kundahpalam Watershed, Nilgries District, Tamilnadu", "date": "2015", "keywords": "area; land; map; rainfall; runoff; soil; study; use; watershed", "summary": "ArcCN-Runoff: an ArcGIS tool for generating curve number and runoff maps, Environmental Modelling & Software, 27-04-04 13:11:52 3B2 Ver.: The 30% of the study area fell under very high runoff potential, and 2% of study area fell under high runoff potential.", "mime": "application/pdf"}, {"id": "esrj-44799", "words": "4902", "extension": ".pdf", "flesch": "55", "author": "Bahajroy, Mojtaba; Taki, Saeed", "title": "Study of the mineralization potential of the intrusives around Valis (Tarom-Iran)", "date": "2014", "keywords": "area; bodies; figure; granites; granitoids; intrusives; iran; mineralization; rocks; study; study area; tarom; valis", "summary": "Special indicator minerals can indicate the economic concentrations of some metallic rare elements; for example, the existence of tourmaline and topaz in granitoid bodies can imply tin mineralization as cassiterite. Peyrovan, H., (1992) Petrographic, petrologic and geochemical studies of intrusive rocks north of Abhar and the association of plutonism in the area with mineralization, MSc thesis, Tarbiyat Moalem University.", "mime": "application/pdf"}, {"id": "esrj-44897", "words": "2959", "extension": ".pdf", "flesch": "51", "author": "Kanli, Ali Ismet; Neducza, Boriszlav", "title": "Electromagnetic Measurements for Monitoring Molybdenum Contamination in Near-Surface Survey", "date": "2015", "keywords": "area; contamination; data; depth; electromagnetic; figure; gpr; measurements; mhz; molybdenum", "summary": "In the second stage of the field study, GPR data were obtained from 50 MHZ and 450 MHz antennas. To increase the penetration depth, we recorded GPR data at 50 MHz lower frequency.", "mime": "application/pdf"}, {"id": "esrj-45175", "words": "5164", "extension": ".pdf", "flesch": "55", "author": "Golekar, Rushikesh Baburao; Baride, Mukund Vasantrao; Patil, Sanjaykumar Narayan; Adil, S H", "title": "Altimetric and hypsometric analysis for soil and water conservation: A case study of Anjani and Jhiri river basin, Northern Maharashtra, India", "date": "2015", "keywords": "anjani; area; basin; hypsometric; india; jhiri; jhiri river; longitudinal; maharashtra; plateau; river; river basin; stage; study; water", "summary": "This type of structure can be constructed in the lower part of the Anjani and Jhiri river catchment, mainly at Ahire Bk, Pashtane Bk and Tarde Bk villages in Anjani river basin and at Vaktuki, Anjan vihire and Jhurkheda village in Jhiri river basin. 55Altimetric and hypsometric analysis for soil and water conservation: A case study of Anjani and Jhiri river basin, Northern Maharashtra, India Hydrogeomorphological characters of Jhiri river basin Moderately dissected plateau Moderately dissected plateau is mainly distributed in the upper part of the Jhiri river catchment (Fig. 4).", "mime": "application/pdf"}, {"id": "esrj-45202", "words": "5730", "extension": ".pdf", "flesch": "52", "author": "Aiping, Zhang; Du, Yangsong; Cao, Yi; Pang, Zhenshan; Luo, Gan; Xu, Kangkang", "title": "Petrology and mineralogy of the Fenghuanshan granodiorite, Anhui Province, China: implications for petrogenesis and metallogenesis implication", "date": "2015", "keywords": "amphibole; area; china; copper; deposit; et al; fenghuangshan; granodiorite; intrusion; magma; ore; plagioclase", "summary": "As such, this suggests the magma that formed the intrusion underwent typical assimilation and fractional crystallization (AFC) processes (Liu et al., 2002; Mao et al., 2004; Wang et al., 2008; Qu et al., 2010; Li et al., 2014).", "mime": "application/pdf"}, {"id": "esrj-47000", "words": "7841", "extension": ".pdf", "flesch": "65", "author": "Whitehead, Neil Evan; Ulusoy, \u00dc.", "title": "Origin of Earthquake Light Associated with Earthquakes in Christchurch, New Zealand, 2010-2011", "date": "2015", "keywords": "blue; christchurch; city; earthquake; eql; figure; flashes; freund; green; ground; hills; light; lightning; new; observations; sky; white; zealand", "summary": "ABSTRACT RESUMEN Keywords: : Earthquake light, earthquake precursors. Earthquake light above Mt Wilson Observatory.", "mime": "application/pdf"}, {"id": "esrj-47432", "words": "512", "extension": ".pdf", "flesch": "53", "author": "Vargas J., Carlos A.", "title": "Letter from editor", "date": "2014", "keywords": "sciences; study", "summary": "This 2014 has been full of challenges moving us to find the best ways to present new manuscripts. J. Vol. 18, No. 1 (June, 2014): 74 Letter from editor Welcome to Earth Sciences Research Journal, Volume 18, Number 1.", "mime": "application/pdf"}, {"id": "esrj-47433", "words": "5914", "extension": ".pdf", "flesch": "54", "author": "Beltr\u00e1n Rivas, Juli\u00e1n Daniel; Vargas Jim\u00e9nez, Carlos Alberto", "title": "Hydrocarbon Production Scenarios in Colombia. Review of Field Sizes, Hydrocarbon Reserves and Expectations of Conventional and Unconventional Resources.", "date": "2014", "keywords": "colombia; decline; fields; gas; hydrocarbon; oil; production; reserves; resources; scenarios", "summary": "J. Vol. 18, No. 1 (June, 2014): 77 - 83 ABSTRACT RESUMEN Key words: ultimately recoverable resources, oil production, gas production, production peak, oil reserves, gas reserves, decline rates. Regarding gas production, 88% of the gas delivered to the pipeline originates in large fields (Fig. 5), which indicates the strong production control exerted by large fields in Colombia. 0 \u00a0 100.000 \u00a0 200.000 \u00a0 300.000 \u00a0 400.000 \u00a0 19 90 \u00a0 19 95 \u00a0 20 00 \u00a0 20 05 \u00a0 20 10 \u00a0 M bb l \u00a0 Daily \u00a0oil \u00a0produc/on \u00a0(1990 \u00a0-\u00ad\u2010 \u00a02012) \u00a0 \u00a0 Producci\u00f3n \u00a0Total \u00a0 Super \u00a0Grande \u00a0 Gigantes \u00a0 79Hydrocarbon Production Scenarios in Colombia.", "mime": "application/pdf"}, {"id": "esrj-47677", "words": "5529", "extension": ".pdf", "flesch": "54", "author": "Erkoyun, H\u00fclya; Kadir, Selahattin", "title": "Occurrence of Cr-bearing beryl in stream sediment from Eski\u015fehir, NW Turkey", "date": "2016", "keywords": "area; beryl; chromium; crystals; deposits; emerald; eski\u015fehir; ppm; rocks; schist; sediment; stream; study; units", "summary": "Infrared Spectroscopy spectra for an Eski\u015fehir beryl crystal. Representative beryl crystal samples were prepared for SEM-EDX analyses by adhering each beryl sample onto an aluminum sample holder that had been covered with double-sided tape and coated with a thin film (~ 350 \u00c5) of gold using a Giko ion coater at Eski\u0219ehir Osmangazi University.", "mime": "application/pdf"}, {"id": "esrj-48026", "words": "6373", "extension": ".pdf", "flesch": "63", "author": "Hu, Guisheng; Chen, Ningsheng; Tanoli, Javed Iqbal; You, Yong; Li, Jun", "title": "Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China", "date": "2016", "keywords": "area; characteristics; chen; china; debris; debris flow; earthquake; figure; flows; gully; rainfall; size; stone; table; wenchuan", "summary": "The reconstructed towns of Yingxiu, Yinxing and Miansi have suffered debris flows and other secondary disasters in the past five years and are still not out of danger in the future. Also, the dynamic processes and changes that occurred in the debris flow were examined, and the block and burst characteristics of debris flow were studied based on statistical calculation and analysis dynamic characteristic parameters of debris flow.", "mime": "application/pdf"}, {"id": "esrj-48357", "words": "7084", "extension": ".pdf", "flesch": "55", "author": "Al Farajat, Mohammmad; Schaefers, Bernhard; Al Hassanat, Hussein; Al Atteyat, Nedal; Al Jahed, Nidal; Khataibeh, Jamal", "title": "Using GIS And Geophysics In Selecting Suitable Basins With Freshwater Aquifers For An Efficient Exploration Strategy - A Case Study From Petra-Region, Jordan", "date": "2015", "keywords": "aquifers; area; basin; depth; farajat; figure; gravity; groundwater; jordan; petra; region; resistivity; sandstone; study; surface; table", "summary": "Wadi Al Baida area is cross-cut by a major sinistral strike-slip fault (Ras Mulayh Fault) trending about 35o. Figure 4: Geological map of Wadi Al Baida area and its surrounding, the symbols below point to the rock formations.", "mime": "application/pdf"}, {"id": "esrj-49063", "words": "5572", "extension": ".pdf", "flesch": "62", "author": "Yavasoglu, Hakan", "title": "Strain Rate Analysis on the \u00c7ankiri-Bing\u00f6l Segment of the North Anatolian Fault in Turkey", "date": "2015", "keywords": "anatolian; area; et al; fault; gps; nafz; north; plate; rate; slip; strain; study; zone; \u00e7ank\u0131r\u0131", "summary": "Barka, 1992, 1996; Barka et al., 2000). Karl\u0131ova (Region-5) is a very complex zone (Barka et al., 1987; Sengor and Y\u0131lmaz, 1981).", "mime": "application/pdf"}, {"id": "esrj-49127", "words": "4102", "extension": ".pdf", "flesch": "54", "author": "Fereidooni, Davood; Khanlari, Gholam Reza; Heidari, Mojtaba", "title": "Assessment of a Modified Rock Mass Classification System for Rock Slope Stability Analysis in the Q-system", "date": "2015", "keywords": "classification; engineering; mass; parameters; rmr; rock; slopes; smr; stability; system", "summary": "Therefore, in this study, it was used with RMR and SMR rock mass classification systems to assess stability or instability of different rock slopes along the Hamedan-Ganjnameh-Tuyserkan road, Hamedan province west of Iran. Many researchers have proposed or used rock mass classification systems as an experimental method to assess rock mass quality or rock slope stability (e.g. Bieniawski 1973; Barton 1974; Selby 1980; Haines and Terbrugge 1991; Hack et al. 2003; Liu and Chen 2007; Pantelidis 2010; Hajiazizi and Khatami 2013).", "mime": "application/pdf"}, {"id": "esrj-49372", "words": "3474", "extension": ".pdf", "flesch": "50", "author": "Mahdavi, Mansoureh; Dabiri, Rahim; Shah Hosseini, Elham", "title": "Magmatic Evolution and Compositional Characteristics of Tertiary Volcanic Rocks Associated with the Venarch Manganese Mineralization, Sw Qom, Central Iran", "date": "2015", "keywords": "area; deposits; iran; manganese; mineralization; rocks; samples; venarch", "summary": "The Mn mineralization in Venarch deposit has occurred as bands, lami- nates, and manganese layers concurrent with the other volcano-sedimentary rocks. Analytical methods A suite of 60 samples was collected from the mineralized zones and associated volcanic rocks representing different lithologies in the area.", "mime": "application/pdf"}, {"id": "esrj-49405", "words": "6228", "extension": ".pdf", "flesch": "55", "author": "Agbazo, M\u00e9dard Noukpo; Koto N'Gobi, Gabin; Kounouhewa, Basile; Alamou, Eric; Afouda, Abel; Akpo, Aristide", "title": "Estimation of IDF Curves of Extreme Rainfall by Simple Scaling in Northern Oueme Valley, Benin Republic (West Africa)", "date": "2016", "keywords": "benin; curves; data; duration; et al; frequency; idf; intensity; min; model; properties; rainfall; scale; scaling; simple; stations; time", "summary": "Bendjoudi, et al. (1997) used a multifractal point of view on rainfall IDF curves. Recently, \u00d6zger, et al. (2010) focused on the scaling properties of rainfall at 43 rain gauge stations in Texas; Ceresseti (2011) used a multifractal point of view on rainfall IDF curves in France to characterize IDF curves; Ghanmi (2014) developed regional relationship for ungauged locations based on the scaling theory in Tunisia.", "mime": "application/pdf"}, {"id": "esrj-49560", "words": "7797", "extension": ".pdf", "flesch": "59", "author": "Sanjurjo-S\u00e1nchez, Jorge; Alves, Carlos; Vidal Romani, Juan Ram\u00f3n", "title": "Assessing the weathering of granitic stones on historical urban buildings by geochemical indices", "date": "2016", "keywords": "alves; buildings; chemical; correlation; elements; environment; fa\u00e7ades; indices; quarry; rock; samples; sanjurjo; s\u00e1nchez; weathering; weathering indices", "summary": "The aim of this work is to discuss the use of weathering indices in the study of weathering rates on granitic stones applied in four historical buildings of an urban area. J. Vol. 20, No. 3 ( September, 2016 ) : F1- F13 ABSTRACT RESUMEN Keywords: Weathering indices, weathering rates, urban environment, granitic rocks, historical buildings Palabras clave: \u00edndices de meteorizaci\u00f3n, tasas de meteorizaci\u00f3n, ambientes urbanos, rocas gran\u00edticas, edificios hist\u00f3ricos.", "mime": "application/pdf"}, {"id": "esrj-49624", "words": "7149", "extension": ".pdf", "flesch": "56", "author": "Wahid, Ahmed; Madden, Marguerite; Khalaf, Fikry; Fathy, Ibtehal", "title": "Geospatial Analysis for the Determination of Hydro-Morphological Characteristics and Assessment of Flash Flood Potentiality in Arid Coastal Plains: A Case in Southwestern Sinai, Egypt", "date": "2016", "keywords": "area; development; egypt; figure; flash; flash flood; flood; journal; land; plain; rainfall; runoff; sinai; soil; study; study area; water", "summary": "Study area receives rare, but sometimes noticeable and irregular, amounts of rainfall mainly in winter and autumn where summer is a dry season (JICA, 1999; Ghodeif, 2001). The highest CN and runoff values are noticed in the eastern mountainous basement heights in contrast to coastal areas and gravelly plains.", "mime": "application/pdf"}, {"id": "esrj-49641", "words": "652", "extension": ".pdf", "flesch": "31", "author": "Vargas, Carlos A.", "title": "Letter from editor", "date": "2014", "keywords": "colombia; development; event", "summary": "The event hosted case studies from some of the pioneers in Colombian development, using the latest reservoir data fiscal updates and global scale technology case studies, to evaluate real potential Colombia holds for unconventional development. The other two articles in seismology for this edition are based on improving accuracy and reliability of ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v18n2.49641 http://dx.doi.org/10.15446/esrj.v18n2.49641 the first arrival times through Cross Correlation Technique, and in the characterization of seismic events using only one seismological station.", "mime": "application/pdf"}, {"id": "esrj-49829", "words": "5889", "extension": ".pdf", "flesch": "55", "author": "Sattari, Mohammad Taghi; Dodangeh, Esmaeel; Abraham, John", "title": "Estimation of daily soil temperature via data mining techniques in semi-arid climate conditions", "date": "2017", "keywords": "algorithm; anfis; data; depth; layer; model; node; output; soil; soil temperature; temperature; tree; values", "summary": "Over past decades, remote sensing techniques have also been utilized to measure and predict soil temperature over large areas but a major drawback of this approach is the availability of soil temperature data in the top few centimeters (Elshorbagy and Parasuraman, 2008). Error analysis of temperature predictions at different soil depths indicates that all three models perform well in predicting surface soil temperature data rather than at deeper depths.", "mime": "application/pdf"}, {"id": "esrj-50062", "words": "4978", "extension": ".pdf", "flesch": "54", "author": "Ozdemir, Adnan; Nalbantcilar, Mahmut Tahir", "title": "Potential Settlement Due to Seismic Effects in the Residential Area of Ilgin (Konya, Turkey)", "date": "2016", "keywords": "areas; damage; earthquake; effects; ground; ilgin; liquefaction; potential; seed; settlement; soil; structures; turkey", "summary": "In this study, seismic settlements were calculated using the most commonly used method, the Standard Penetration Test (SPT), developed by Tokimatsu and Seed (1987). ABSTRACT RESUMEN Keywords: Soil settlement, soil dynamic, liquefaction, earthquake, Ilgin.", "mime": "application/pdf"}, {"id": "esrj-50101", "words": "4235", "extension": ".pdf", "flesch": "49", "author": "I\u015f\u0131k, Ercan; Kutanis, Mustafa", "title": "Determination of Local Site-Specific Spectra Using Probabilistic Seismic Hazard Analysis for Bitlis Province, Turkey", "date": "2015", "keywords": "analysis; bitlis; displacement; earthquake; eastern; fault; figure; hazard; region; spectral; turkey; van; zone", "summary": "Analysing earthquake hazard in Papua New Guinea. The results of this work will form the basis for the replacement of the existing earthquake design spectra in the assessment of earthquake performances of the existing buildings in Bitlis province.", "mime": "application/pdf"}, {"id": "esrj-50245", "words": "4481", "extension": ".pdf", "flesch": "64", "author": "Chahud, Artur; Petri, Setembrino", "title": "The Tatu\u00ed Formation (Early Permian, Paran\u00e1 Basin), Brazil: Paleontology and Paleoenvironmental Considerations", "date": "2015", "keywords": "chahud; et al; formation; fossils; irati; paran\u00e1; paulo; petri; s\u00e3o; s\u00e3o paulo; tatu\u00ed", "summary": "Estado de S\u00e3o Paulo. Paleocorrentes, paleogeografia e seq\u00fc\u00eancias deposicionais da Forma\u00e7\u00e3o Tatu\u00ed, centro-leste do Estado de S\u00e3o Paulo.", "mime": "application/pdf"}, {"id": "esrj-50256", "words": "4380", "extension": ".pdf", "flesch": "53", "author": "Abualhin, Khaldoun Salman", "title": "Mapping of Underwater Seabed Morphology of the Gaza Strip Coastal Zone Using Remote Sensing Technique", "date": "2016", "keywords": "band; bars; coastal; depth; figure; gaza; index; mapping; quickbird; seabed; sensing; strip; zone", "summary": "The indices of band 2 and band 4 and of band 3 and band 4 showed less capability in mapping sand bar features. Some of the geomorphological features in the coastal zone of the Gaza Strip are seasonal features such as underwater sand bars.", "mime": "application/pdf"}, {"id": "esrj-50337", "words": "5297", "extension": ".pdf", "flesch": "61", "author": "Lazz\u00fas, Juan A; Salfate, Ignacio", "title": "Long-term prediction of wind speed in La Serena City (Chile) using hybrid neural network-particle swarm algorithm", "date": "2017", "keywords": "algorithm; data; network; neural; prediction; series; shows; speed; term; time; values; wind", "summary": "There are various strategies for wind speed prediction that can be classified into two categories: (1) statistical methods that can be subdivided into numerical weather prediction (NWP) and persistence and (2) artificial intelligence techniques that have subdivisions such as artificial neural networks (ANN) and fuzzy logic (Monfared et al., 2009). Wang, J., Zhang, W., Wang, J., Han, T. and Kong, L. A novel hybrid approach for wind speed prediction.", "mime": "application/pdf"}, {"id": "esrj-50724", "words": "5064", "extension": ".pdf", "flesch": "58", "author": "Fattah, Mohammed Y.; Joni, Hasan H.; Al-Dulaimy, Ahmed S. A.", "title": "Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix", "date": "2016", "keywords": "cbr; collapse; density; dune; fume; lime; sand; silica; soil; table; test", "summary": "Investigation of geotechnical specifications of sand dune soil. One of the most dramatic depositional landforms, which occupy large areas all over the world, is sand dune.", "mime": "application/pdf"}, {"id": "esrj-50889", "words": "10039", "extension": ".pdf", "flesch": "61", "author": "Ozturk, Serkan", "title": "Space-time assessing of the earthquake potential in recent years in the Eastern Anatolia region of Turkey", "date": "2017", "keywords": "anatolia; earthquake; eastern; fault; figure; magnitude; quiescence; region; seismic; study; time; turkey; value; zone; \u00f6zt\u00fcrk", "summary": "Temporal changes in earthquake magnitudes with MD\u22654.0 including 1155 events between 1970 and 2015. An application of the earthquake hazard and aftershock probability evaluation methods to Turkey earthquakes.", "mime": "application/pdf"}, {"id": "esrj-51218", "words": "3998", "extension": ".pdf", "flesch": "56", "author": "Aykut, Nedim Onur; G\u00fclal, Engin; Akpinar, Burak", "title": "Performance of Single Base RTK GNSS Method versus Network RTK", "date": "2015", "keywords": "base; coordinates; cors; gnss; network; points; receiver; rtk; time; yldz", "summary": "Coordinate differences (YLDZ single base RTK solution) ABSTRACT RESUMEN Keywords: RTK GNSS, CORS, Single Base RTK Palabras clave: Navegaci\u00f3n Cin\u00e9tica Satelital en Tiempo Real, Sistema global de Navegaci\u00f3n por Sat\u00e9lite, estaciones de referencia de funcionamiento continuo, base \u00fanica RTK.", "mime": "application/pdf"}, {"id": "esrj-51450", "words": "4575", "extension": ".pdf", "flesch": "57", "author": "Ar\u00edstegui Cortijo, Andr\u00e9s; P\u00e9rez Gonz\u00e1lez, Mar\u00eda Eugenia", "title": "Soil sealing in Madrid (Spain), study case of Colmenar Viejo", "date": "2017", "keywords": "area; colmenar; growth; madrid; maps; population; sealing; soil; spain; urban; viejo", "summary": "This work analyses soil loss over the last 150 years due to urban growth in one of the boroughs of highest environmental value around Madrid (Spain), i.e. Colmenar Viejo. Urban growth in Colmenar Viejo has been steady, has registered exponential increases (soil sealing affected 0.14% of the total municipal territory in 1861 and covers 2.64% nowadays) and has followed similar patterns to other Spanish towns influenced by metropolitan processes.", "mime": "application/pdf"}, {"id": "esrj-51562", "words": "591", "extension": ".pdf", "flesch": "41", "author": "Vargas Jim\u00e9nez, Carlos A.", "title": "Letter from editor", "date": "2015", "keywords": "earth; research; sciences", "summary": "As part of the strategies to warrant water resources, the method presented in next work is accomplished to be more efficient and cheaper to estimate runoff in a case based in Tamilnadu District, in India. This 2015-2018 plan should result in the creation of new research groups, improvement of investigation centers, recognition of researchers and the double of resources in funding for projects.", "mime": "application/pdf"}, {"id": "esrj-51863", "words": "5209", "extension": ".pdf", "flesch": "55", "author": "Agbazo, Medard Noukpo; Gabin, Koton'Gobi; Basile, Kounouhewa; Eric, Alamou; Abel, Afouda; Norbert, Hounkonnou", "title": "Multi-fractal Behaviors of long term daily relative humidity and temperature observed over Benin synoptic stations (West Africa)", "date": "2019", "keywords": "benin; et al; multifractal; series; spectrum; stations; temperature; time; time series", "summary": "It can help understand the mechanisms governing the dynamics of temperature time series in Benin. Temperature time series exhibit long-range temporal correlation, which cannot be fully described by a single scaling exponent.", "mime": "application/pdf"}, {"id": "esrj-52403", "words": "7251", "extension": ".pdf", "flesch": "56", "author": "Huang, Keke; Li, Xiaoning; Hu, Zuowei; Zhong, Yijiang", "title": "Oxygen and Carbon Isotopic Composition of Carbonate Rocks of the Permian Qixia Formation, Sichuan Basin: Thermal Effects of Emeishan Basalt", "date": "2016", "keywords": "basin; carbon; carbonates; changjianggou; chinese; formation; isotopic; oxygen; permian; qiaoting; qixia; qixia formation; samples; section; sichuan; values", "summary": "The genetic mechanism of shoal facies dolomite and its additive effect of Permian Qixia Formation in Sichuan Basin. The low \u03b413C values were mainly distributed throughout the middle part of the Qixia Formation (the bottom of the second member of the Formation); the \u03b413C values of samples from this part were mostly between -1\u2030 and 1\u2030. Despite Qixia Formation in the Changjianggou section and Qiaoting section was deposited in a shallow-water platform facies and an open platform facies, respectively (Huang et al., 2004), such difference could not lead to the observed variation in \u03b413C values due to its insensitive to spatial factor.", "mime": "application/pdf"}, {"id": "esrj-52469", "words": "5301", "extension": ".pdf", "flesch": "50", "author": "Colins, Johnny; Sashikkumar, M. C.; Anas, P. A.; Kirubakaran, M.", "title": "GIS-based assessment of aquifer vulnerability using DRASTIC Model: A case study on Kodaganar basin", "date": "2016", "keywords": "aquifer; area; basin; drastic; groundwater; index; map; media; model; parameter; sensitivity; study; vulnerability", "summary": "Hydraulic conductivity map DRASTIC vulnerability index: The DRASTIC aquifer vulnerability map is shown in figure 9. Topography map The unsaturated or vadose zone plays a prominent role in the assessment of groundwater vulnerability.", "mime": "application/pdf"}, {"id": "esrj-52781", "words": "4311", "extension": ".pdf", "flesch": "54", "author": "Nkpadobi, Johnbosco Ikenna; Raj, John Kuna; Ng, Tham Fatt", "title": "Classification of cut slopes in weathered meta-sedimentary bedrocks", "date": "2016", "keywords": "classification; cut; engineering; joint; mass; mica; quality; rmr; rock; schist; slopes; strength; table", "summary": "Rock slope engineering. The advantage of rock mass classification using RMR is that it incorporates geological, geometric and engineering parameters in arriving at a quantitative value of the rock mass quality.", "mime": "application/pdf"}, {"id": "esrj-53670", "words": "8314", "extension": ".pdf", "flesch": "48", "author": "Mohamad, Mohamad Tarmizi; Fatt, Ng Tham; Konjing, Zainey; Ashraf, Muhammad Aqeel", "title": "Development of Tropical Lowland Peat Forest Phasic Community Zonations in the Kota Samarahan-Asajaya area, West Sarawak, Malaysia", "date": "2016", "keywords": "anderson; area; community; deposits; forest; interval; ks.tp.10; lowland; mangrove; peat; phasic; pollen; swamp; type", "summary": "From 1.5 to 1.0 m, the presence of peat pollen types that may support the vegetational successions or zones ranging from phasic community I and phasic community IV to VI is noted (Anderson and Muller, 1975). However, peak abundance of Stenochlaena palustris occurs at this interval, thus signifying vegetation succession of phasic community I. From 1.0 to 0.5 m, at approximately 2380 \u00b1 30 years B.P., the presence of peat pollen types that may support the vegetational succession of phasic community zones that range from phasic community I to VI is observed (Anderson and Muller, 1975).", "mime": "application/pdf"}, {"id": "esrj-54133", "words": "4404", "extension": ".pdf", "flesch": "59", "author": "Lu, Lu; Li, Xin; Zhou, Jing; Chen, Genda; Yun, Dong", "title": "Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load", "date": "2016", "keywords": "concrete; dam; dams; figure; fracture; impact; model; pressure; structures; time", "summary": "When extreme events such as earthquakes, tsunamis, hurricanes, and tornadoes took place, concrete dams can be subject to extensive shaking and wave impact. Concrete dams are thoroughly studied in this paper both experimentally and numerically to understand their behavior and failure modes.", "mime": "application/pdf"}, {"id": "esrj-54138", "words": "4603", "extension": ".pdf", "flesch": "49", "author": "Chen, Xi; Wang, Ke-lin; Zhou, Wei-jun; Li, Hong-bin; Ashraf, Muhammad Aqeel", "title": "Optimization of land use at Mt. Yuelu scenic area: an analysis using the ecological green equivalent", "date": "2016", "keywords": "area; ecosystem; equivalent; forest; green; land; land use; research; structure; use; yuelu", "summary": "First, there is ecological green equivalent land, characterized by its ability to be quantified regarding ecological mechanisms carried out by forest ecosystems. J. Vol. 20, No. 1 (March, 2016): N1 -N5 ABSTRACT Keywords: Ecological green equivalent, land use structure, landscape, scenic area, forest, China.", "mime": "application/pdf"}, {"id": "esrj-54140", "words": "4304", "extension": ".pdf", "flesch": "56", "author": "He, Jinxian; Zhang, Xiaoli; Ma, Li; Wu, Hongchen; Ashraf, Muhammad Aqeel", "title": "Geological Characteristics of Unconventional Gas in Coal Measure of Upper Paleozoic Coal Measures in Ordos Basin, China", "date": "2016", "keywords": "basin; coal; formation; gas; measures; ordos; paleozoic; sandstone; shale", "summary": "In Chinese coal measure strata, because the coal seam, dark mud shale, and tight sandstone interbedded deposit, the geological phenomenon which several kinds of coal measures gasses jointly preserve is relatively prevalent. Additionally, in coal mining, because the surrounding rock gas of coal seam is a primary source of the coal mine gas, the coal measures\u2019 gas (not only coalbed methane) drainage helps reduce the hazard of coal mine gas and efficiently reduce greenhouse gas emissions.", "mime": "application/pdf"}, {"id": "esrj-54141", "words": "3373", "extension": ".pdf", "flesch": "54", "author": "Liu, Xianping; Ju, Xiaodong; Qiao, Wenxiao; Lu, Junqiang; Men, Baiyong; Zhang, Kai; Yao, Yongchao", "title": "Research on Test-bench for Sonic Logging Tool", "date": "2016", "keywords": "board; controlling; data; interface; logging; software; test; tool", "summary": "resistivity Scanning Imaging Logging Tool (Yang et al., 2012), and have successfully applied to the test and calibration of tool modules and subs. The analog signal generated by the DAC is provided to corresponding test module after the processing of filtering and impedance matching.", "mime": "application/pdf"}, {"id": "esrj-54142", "words": "8960", "extension": ".pdf", "flesch": "52", "author": "Qingyu, Zhang; Bin, Liang; Fengrui, Qin; Jianwen, Cao; Yong, Dan; Yanzhen, Hao; Jingrui, Li; Ashraf, Muhammad Aqeel", "title": "Geochemical Characteristics and Paleoenvironmental Signi cance of the Ordovician Paleokarst Reservoir in the Maigaiti Slope of Tarim Basin", "date": "2016", "keywords": "abstract; basin; carbonatite; characteristics; chinese; english; environment; et al; exploration; formation; gas; isotope; karst; maigaiti; marine; oil; ordovician; paleokarst; slope; tarim; values", "summary": "This confirms that their formations are related to fresh water and proves the existence of ancient weathered crust karstification (Li et al., 2009). In recent years, researchers have applied geochemical characteristics in paleokarst reservoir research and have greatly promoted global research on paleokarst and diagenesis fluids (Shields et al., 2003; Veizer et al., 1999; Liu et al., 2012; Yan et al., 2005; Huang et al., 2008).", "mime": "application/pdf"}, {"id": "esrj-54144", "words": "4117", "extension": ".pdf", "flesch": "53", "author": "Feng, Naichao; Cheng, Shiqing; Lan, Weixing; Mu, Guoquan; Peng, Yao; Yu, Haiyang", "title": "Variable-Permeability Well-Testing Models and Pressure Response in Low-Permeability Reservoirs with non-Darcy Flow", "date": "2016", "keywords": "boundary; curves; darcy; effect; flow; gradient; permeability; pressure; type", "summary": "Permeability curve of low-velocity non-Darcy flow (i) Through the initial experimental data, plot the flow velocity versus pressure gradient curve V-\u2206P, then plot the K-\u2206P curve presenting the relationship between permeability and pressure gradient; (ii) Divide the curve into several linear sections, and consider the permeability of each linear section as a constant; (iii) The finite difference algorithm is employed to discretize the non- linear flow differential equations, and then set up a non-linear equation system in which the pressure is the unknown, and the permeability is a function of pressure gradient, K= K( dp/dr). Influence of non-Darcy effect on non-Darcy type curves In the early section of Figure 4, the type curves in log-log scale coincide as a 45o line, indicating the influence of wellbore storage effect.", "mime": "application/pdf"}, {"id": "esrj-54400", "words": "4821", "extension": ".pdf", "flesch": "44", "author": "Li, Jian; Chen, Shang-Xiong; Jiang, Ling-Fa", "title": "Test study on the influences of dynamic stress and load history to the dynamic properties of the remolded red clay", "date": "2016", "keywords": "clay; confining; consolidation; pressure; ratio; red; soil; strain; strength; stress; test; vibration", "summary": "Dynamic strength test curves Dynamic strength of soils varies with loading rate and the cyclic impacting effects of dynamic stress. Therefore, soil dynamic strength and modulus remain under the influence of friction between soil particles.", "mime": "application/pdf"}, {"id": "esrj-54402", "words": "4296", "extension": ".pdf", "flesch": "55", "author": "Guo, Jin Yun; Shen, Yi; Zhang, Kaihua; Liu, Xin; Kong, Qiaoli; Xie, Feifei", "title": "Temporal-spatial distribution of oceanic vertical deflections determined by TOPEX/Poseidon and Jason-1/2 missions", "date": "2016", "keywords": "altimetry; components; crossover; data; dovs; gravity; oceanic; oceans; prime; sea; vertical", "summary": "Accuracy analysis of vertical deflection data observed with the Hannover Digital Zenith Camera System TZK2-D. Journal of Geodesy, 82(6), 347-356. Temporal-spatial distribution of oceanic vertical deflections determined by TOPEX/Poseidon and Jason-1/2 missions Record Manuscript received: 26/11/2015 Accepted for publication: 06/03/2016 How to cite item Guo, J. Y., Shen, Y., Zhang, K., Liu, X., Kong, Q. and Xie F. (2016).", "mime": "application/pdf"}, {"id": "esrj-54504", "words": "3654", "extension": ".pdf", "flesch": "61", "author": "Guohui, Li; Xiaocheng, Ma; Chunling, Yang", "title": "Engineering Innovation of a Length of Nearly 3300m large Diameter Pipeline Installed by HDD", "date": "2016", "keywords": "coating; crossing; depth; diameter; formula; hdd; length; pipeline; river; scour", "summary": "A new global horizontal directional drill (HDD) undersea crossing record has been set regarding pipe diameter, pipe weight and length of crossing, in Saudi Arabia, in 2007 (Share, 2009). Analyzing the cases mentioned regarding pipe diameter, pipe weight and length of the crossing, the case of utilizing a 1016mm diameter,with 3300 lengths and a weight reaching 2096tons pipe cannot complete pullback.", "mime": "application/pdf"}, {"id": "esrj-54508", "words": "4457", "extension": ".pdf", "flesch": "55", "author": "Liu, Guangfen; Li, Shoujun; Gu, Daihong; Lu, Yang; Asamoah, Emmanuel", "title": "Experimental study of petrophysical properties of a tight formation by considering the clay minerals and flow sensitivities", "date": "2016", "keywords": "area; chang; clay; content; figure; formation; illite; minerals; permeability; porosity; reservoir; sensitivity; zhenbei", "summary": "4.1 Water and Salt Sensitivity Evaluation Among reservoir clay minerals, montmorillonite has the strongest effect on water sensitivity; even a tiny amount of montmorillonite caused very strong sensitivity. Influence of clay mineral content on porosity and permeability.", "mime": "application/pdf"}, {"id": "esrj-54555", "words": "4958", "extension": ".pdf", "flesch": "50", "author": "Nagaraju, Arveti; Thejaswi, Arveti; Sreedhar, Yenamala", "title": "Assessment of Groundwater Quality of Udayagiri area, Nellore District, Andhra Pradesh, South India Using Multivariate Statistical Techniques", "date": "2016", "keywords": "analysis; area; chemistry; correlation; groundwater; india; multivariate; nagaraju; pradesh; quality; samples; study", "summary": "The multivariate statistical analysis such as principal component analysis (PCA) and hierarchical cluster analysis (HCA) is an approach to classify groundwater samples and make correlation between variables (Hussain et al. 2008). Results and Discussion From the geochemical analyses of groundwater samples as depicted in Table 1, the pH is in range of 6.98 to 7.70 indicates its suitability for irrigation.", "mime": "application/pdf"}, {"id": "esrj-54601", "words": "870", "extension": ".pdf", "flesch": "47", "author": "Vargas Jim\u00e9nez, Carlos A.", "title": "Letter from the editor", "date": "2015", "keywords": "earth; quality; sciences", "summary": "The mission of Frontiers in Earth Sciences is to provide an introduction to some of the current advanced concepts, probb lems, and controversies that are at the forefront of Earth Sciences and to obtain a view of how the different parts of the Earth behave and interact. During the last two decades, we have published more than 200 papers in all the spectrum of Earth Sciences.", "mime": "application/pdf"}, {"id": "esrj-54710", "words": "2931", "extension": ".pdf", "flesch": "41", "author": "Zhongpei, Liu; Jianhua, Ping; Yuping, Han", "title": "Chemical Characteristics of Groundwater and Its Spatial Distribution in Urban area of Zhumadian City", "date": "2016", "keywords": "area; characteristics; chemical; city; figure; groundwater; resources; study; urban; zhumadian", "summary": "The results show that shallow groundwater is mainly of HCO3-Ca type. Study on chemical characteristics of shallow groundwater in the urban area of Zhumadian City is conductive to understand further of typical features of current shallow groundwater in the area.", "mime": "application/pdf"}, {"id": "esrj-55167", "words": "2789", "extension": ".pdf", "flesch": "54", "author": "Wei, Huabin; Zhu, Huanlai; Shi, Shangming; Yang, Xinliang; Zhang, Jingjun; Wang, Jian; Ashraf, Muhammad Aqeel", "title": "Study of distribution of remaining oil in West Block of the Third District in North Saertu", "date": "2016", "keywords": "area; block; distribution; north; oil; production; reservoir; saertu; study; water", "summary": "Identifying remaining oil distribution is an essential study at the Third District in North Saertu of the West Block in Daqing Oilfield. ABSTRACT RESUMEN Keywords: Remaining oil distribution, 3D geological modeling, Numerical reservoir simulation, Sedimentary microfacies, North Saertu.", "mime": "application/pdf"}, {"id": "esrj-55177", "words": "3445", "extension": ".pdf", "flesch": "43", "author": "Huang, Jin; Yang, Wunian; Yang, Wunian; Yang, Xin; Yang, Xin; Deng, Bing; Deng, Bing", "title": "The Influence of Eco-water Retrieved by Quantitative Remote Sensing on Runoff in Upper Minjiang River Basin", "date": "2016", "keywords": "basin; eco; mec; minjiang; river; runoff; sensing; soil; upper; vegetation; water", "summary": "According to the definition of MEC that the MEC model of pixel (i,j) is as follows: (1) Where EWTc(i,j) is vegetation water content of the pixel(i,j), W(T)(i,j) is soil water content of the pixel(i,j). Vegetation water content has an obvious response to spectral characteristics in the wavelength range from near infrared to intermediate infrared.", "mime": "application/pdf"}, {"id": "esrj-55178", "words": "5343", "extension": ".pdf", "flesch": "56", "author": "Zongyong, Wang; Xin, Han; Guxian, LV; Xunyu, Zhang; Yingchun, Zhang; Xiao, Fan; Qinglong, Huo; Yaqing, Xu", "title": "Rb-Sr Isotopic Geochronology and Geological Implications of Dongfeng Gold Deposit in Jiaodong Area", "date": "2016", "keywords": "abstract; area; chinese; deposit; dongfeng; dongfeng gold; gold; gold deposit; jiaodong; mineralization; ore", "summary": "J. Vol. 20, No. 1 (March, 2016): I1 - I7 ABSTRACT Keywords: Rb\u2013Sr isochron, (87Sr/86Sr) ratio, mineralization, Dongfeng gold deposit, Jiaodong gold-centralized area. Feng et al. (2009) studied the ore-forming conditions, ore body characteristics and wall rock alteration about the No.171 gold vein of Dongfeng gold deposit.", "mime": "application/pdf"}, {"id": "esrj-55348", "words": "6716", "extension": ".pdf", "flesch": "55", "author": "Rui, Xiao-Ping; Yu, Xue-Tao; Lu, Jin; Ashraf, Muhammad Aqeel; Song, Xian-Feng", "title": "An algorithm for generation of DEMs from contour lines considering geomorphic features", "date": "2016", "keywords": "contour; contour lines; control; dem; dems; doi; elevation; features; figure; information; interpolation; intersection; lines; method; points; value", "summary": "ABSTRACT RESUMEN Keywords: Digital Elevation Models (DEM), interpolation points, contour lines map, geomorphic features. Other geomorphic features expressed in contour line maps.", "mime": "application/pdf"}, {"id": "esrj-55440", "words": "7679", "extension": ".pdf", "flesch": "61", "author": "Doganalp, Serkan", "title": "An Evaluation of Recent Global Geopotential Models for Strip Area Project in Turkey", "date": "2016", "keywords": "champ; data; earth; field; geoid; geopotential; ggms; global; gnss; goce; grace; gravity; gravity field; height; levelling; models; satellite; values", "summary": "First GOCE gravity field models derived by three different approaches. A modified short arc approach for recovering gravity eld model; presented at the GRACE Science Team Meeting, Austin, TX Smith DA (1998)", "mime": "application/pdf"}, {"id": "esrj-56382", "words": "4081", "extension": ".pdf", "flesch": "50", "author": "Sun, Hui; Sun, Jianguo; Han, Fuxing; Sun, Zhangqing; Liu, Zhiqiang; Liu, Mingchen; Huang, Xingguo", "title": "Research into the effects of seawater velocity variation on migration imaging in deep-water geology", "date": "2016", "keywords": "depth; interface; m/s; migration; model; movement; seawater; seawater velocity; velocity", "summary": "Figure 4 shows that when seawater migration velocity is quite low, the orbit of pulse imaging points is the one above the true orbit. In seawater velocity model including horizontally stratified medium, each interface can still be recognized in migration section even when there is a significant difference between mv and true seawater velocity.", "mime": "application/pdf"}, {"id": "esrj-57177", "words": "451", "extension": ".pdf", "flesch": "59", "author": "Vargas J., Carlos A.", "title": "Letter from the editor", "date": "2016", "keywords": "earth; journal", "summary": "It is not just Earth Sciences Research Journal that is changing, so too is the global petroleum market. Comments, reviews, and suggestions are always welcomed in Earth Sciences Research Journal through the mail account earthjour_fcbog@unal.edu.co.", "mime": "application/pdf"}, {"id": "esrj-57512", "words": "17720", "extension": ".pdf", "flesch": "69", "author": "Geng, Huiqing; Gu, Xuexiang; Zhang, Yongmei", "title": "Characteristics of genetic mineralogy of pyrite and quartz and their indicating significance in the Gaosongshan Gold Deposit, Heilongjiang Province, NE China", "date": "2018", "keywords": "bearing; china; chinese; deposit; elements; fig; gaosongshan; gold; ore; pyrite; quartz; ree; rocks; type; volcanic", "summary": "The variable range of Co concentrations (51.3-264.0ppm) and Ni concentrations (68.9-258.0ppm) and Co: Ni ratio (0.31-1.90), together with relatively small Sr/Ba ratio in ore-bearing pyrites (0.11-0.50), supports a hydrothermal origin of mineralization at Gaosongshan gold deposit. Study of gold enriched mechanism of Gaosongshan epithermal gold deposit in Lesser Xingan Range, NE of China (in Chinese with English abstract).", "mime": "application/pdf"}, {"id": "esrj-57544", "words": "7098", "extension": ".pdf", "flesch": "47", "author": "Guo, Jianming; Fan, Hailong; Wang, Xiangzeng; Zhang, Lixia; Ren, Laiyi; He, Yonghong; Ma, Fanxia; Meng, Wangcai; Bai, Xiaoyin; Yin, Jintao", "title": "Integrating Geochemical Anomaly and Remote Sensing Methods to Predict Oil- and Gas-Bearing Areas in the Yanchang Oil Field, Ordos Basin, China", "date": "2019", "keywords": "analysis; anomalies; anomaly; area; basin; data; et al; exploration; gas; hydrocarbon; oil; ordos; petroleum; sensing; wang", "summary": "Carbon isotopic characteristics of hydrocarbon gases from coal-measure source rocks\u2014A thermal simulation experiment. Hyperspectral remote sensing anomalies (a. carbonate alteration, b. iron anomalies, and c. hydrocarbon index) 83Integrating Geochemical Anomaly and Remote Sensing Methods to Predict Oil- and Gas-Bearing Areas in the Yanchang Oil Field, Ordos Basin, China A certain weight was assigned to each anomaly index: hydrocarbon anomaly 0.5, carbonate anomaly 0.3, iron anomaly 0.2.", "mime": "application/pdf"}, {"id": "esrj-57924", "words": "5342", "extension": ".pdf", "flesch": "50", "author": "Batista, Jose Alberto; Carmenates, Yuri Almaguer; Mart\u00ednez Gonz\u00e1lez, Josue D.", "title": "Interpretation of aeromagnetic data using GIS to evaluate the geotectonic regime of the Sabinas Basin", "date": "2017", "keywords": "area; basement; basin; blocks; data; field; figure; gis; map; regime; sabinas", "summary": "The surface and subterranean distribution of different rocks types and geological structures provide the basis for the behavior of magnetic field (Telford et al., 1990). Arrows indicate the position of the isolines of magnetic field.", "mime": "application/pdf"}, {"id": "esrj-58000", "words": "6447", "extension": ".pdf", "flesch": "57", "author": "Li, Teng; Wu, Caifang", "title": "Influence of pressure, coal structure and permeability on CBM well productivity at various burial depths in South Yanchuan Block, China", "date": "2016", "keywords": "coal; coal reservoir; coalbed; et al; gas; methane; methane production; permeability; pressure; production; reservoir; stress; structure; thickness; type", "summary": "With increasing burial depth and coal reservoir permeability, the average methane production increases (Fig. The coal matrix swells with increasing gas pressure, especially under low gas pressure conditions (approximately 3.5 MPa), leading to the reduction in coal permeability (Perera and Ranjith, 2012).", "mime": "application/pdf"}, {"id": "esrj-58570", "words": "6287", "extension": ".pdf", "flesch": "63", "author": "Joshi, Vishwa", "title": "Crustal Velocity Models Retrieved from Surface Wave Dispersion Data for Gujarat Region, Western Peninsular India", "date": "2019", "keywords": "basin; crust; data; group; gujarat; india; path; velocity; wave", "summary": "In the present study, three clusters of wave paths A, B1, and B2 have considered. Map shows three clusters of wave paths: A, B1 and B2.", "mime": "application/pdf"}, {"id": "esrj-59496", "words": "6396", "extension": ".pdf", "flesch": "49", "author": "Ocalan, Taylan; Erdogan, Bahattin; Tunalioglu, Nursu; Durdag, Utkan Mustafa", "title": "Accuracy Investigation of PPP Method Versus Relative Positioning Using Different Satellite Ephemerides Products Near/Under Forest Environment", "date": "2016", "keywords": "accuracy; coordinate; data; differences; gnss; gps; method; orbit; point; positioning; ppp; products; relative; satellite; services; solutions; web", "summary": "Today relative techniques provide better solutions than PPP technique in terms of point positioning accuracy. The primary factors for point positioning accuracy are the baseline length between two receivers and the observation duration.", "mime": "application/pdf"}, {"id": "esrj-59640", "words": "4721", "extension": ".pdf", "flesch": "60", "author": "Singh, Sagar; Kanli, Ali Ismet; Mukhopadhyay, Sagarika", "title": "Full waveform inversion in time and frequency domain of velocity modeling in seismic imaging: FWISIMAT a Matlab code", "date": "2018", "keywords": "domain; equation; frequency; inversion; k k; model; time; velocity; wave; waveform", "summary": "The governing equation for time domain FWI is non-homogeneous 2D acoustic wave equation (Eq. 2). However, for this study a resampled velocity model (true velocity model) is used as illustrated in Figure 5.", "mime": "application/pdf"}, {"id": "esrj-59822", "words": "351", "extension": ".pdf", "flesch": "59", "author": "Vargas, Carlos A.", "title": "Letter from the editor", "date": "2016", "keywords": "journal; research", "summary": "All those subjects are welcome in Earth Sciences Research Journal. Editor in Chief, Earth Sciences Research Journal LE TT ER F R O M T H E ED IT O R", "mime": "application/pdf"}, {"id": "esrj-59972", "words": "4241", "extension": ".pdf", "flesch": "58", "author": "Palanisamy, Thanabalan; R, Vidhya", "title": "Derivation of Soil Moisture using Modified Dubois Model with field assisted surface roughness on RISAT-1 data", "date": "2018", "keywords": "data; dubois; field; land; model; moisture; radar; remote; roughness; sar; soil; soil moisture; surface", "summary": "In order to quantatively compare the profiles and measure the spatial characteristics the spatial wave number (k) and spatial scale (2\u03c0) is used for estimating the surface roughness from soil moisture data using backscatter SAR (Evans 1992; Wang 2011; Fresnel 2005). ABSTRACT Keywords: Soil moisture, surface roughness, Modified Dubois Model, Topp\u2019s model, RISAT 1-SAR.", "mime": "application/pdf"}, {"id": "esrj-60211", "words": "5016", "extension": ".pdf", "flesch": "52", "author": "Chen, Yifu; Xie, Zhong; Qiu, Zhenge; Zhang, Min; Zhong, Saishang", "title": "The model of direct relative orientation with seven constraints for geological landslides measurement and 3D reconstruction", "date": "2016", "keywords": "accuracy; b b; l b; l l; model; orientation; \ufffd \ufffd", "summary": "This model can directly calculate the eight unknowns 0 0 0 0 0 0 0 0 1 2 3 4 6 7 8 9, , , , , , ,L L L L L L L L with eight or more conjugate points without approximate values. Model of direct relative orientation with constraints During the conventional model of direct relative orientation, the eight parameters 0 0 0 0 0 0 0 0 1 2 3 4 6 7 8 9, , , , , , ,L L L L L L L L can be calculated when the value of BX is fixed.", "mime": "application/pdf"}, {"id": "esrj-60226", "words": "2862", "extension": ".pdf", "flesch": "53", "author": "Cantillo, Victor; Mercado, Vicente; P\u00e1jaro, C\u00e9sar", "title": "Empirical Correlations for the Swelling Pressure of Expansive Clays in the City of Barranquilla, Colombia", "date": "2017", "keywords": "barranquilla; clays; content; correlation; equations; pressure; swell; swelling; water", "summary": "Discussion A broader revision of swell pressure correlation equations can be found in Al-Rawas and Goosen (2006). In this study, the constant volume method was used to determine swell pressure values implemented to develop the correlations equations.", "mime": "application/pdf"}, {"id": "esrj-60255", "words": "7337", "extension": ".pdf", "flesch": "56", "author": "Isik, Ercan; Sagir, Coskun; Tozlu, Zuhal; Salim Ustaoglu, Umit", "title": "Determination of Urban Earthquake Risk for K\u0131r\u015fehir, Turkey", "date": "2019", "keywords": "buildings; damage; earthquake; estimation; fault; figure; k\u0131r\u015fehir; loss; losses; province; risk; scenario; study; turkey", "summary": "Besides, studies on reduction of earthquake losses in the region may utilise these results. The second component entails the analysis of the vulnerability of buildings and other facilities to earthquake damage and the losses that may result out of this damage (FEMA-177, 1989).", "mime": "application/pdf"}, {"id": "esrj-60654", "words": "6832", "extension": ".pdf", "flesch": "42", "author": "Ghassemi, Ali; Seyfi, S.; Shahir, H.", "title": "Evaluation of variable permeability model in simulation of seismic behavior of uniform level and gently sloping sand layers", "date": "2020", "keywords": "experiment; layer; liquefaction; loading; model; numerical; permeability; pressure; results; sand; settlement; simulation; soil; surface", "summary": "Evaluation of variable permeability model in simulation of seismic behavior of uniform level and gently sloping sand layers. ABSTRACT Evaluation of variable permeability model in simulation of seismic behavior of uniform level and gently sloping sand layers Evaluaci\u00f3n del modelo variable de permeabilidad en la simulaci\u00f3n del comportamiento s\u00edsmico de capas arenosas planas y ligeramente inclinadas ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n3.60654 En este estudio se presenta un modelo parejo din\u00e1mico de los elementos finitos para la simulaci\u00f3n num\u00e9rica del nivel de respuesta de las capas de una cuesta arenosa saturada objeto de una carga c\u00edclica.", "mime": "application/pdf"}, {"id": "esrj-61135", "words": "5493", "extension": ".pdf", "flesch": "59", "author": "Abbasi, Saiq Shakeel; Liu, Jiangping; Hameed, Nayima; Ehsan, Muhsan", "title": "A modified approach for Elastic Impedance Inversion due to the variation in value of K", "date": "2018", "keywords": "avo; impedance; inversion; reflection; type; value; wave; \uf8fa \uf8fa", "summary": "After generation of elastic impedance values at different angles, inversion procedure was applied; P-Impedance, S-impedance, and density of the following equation were inverted. To overcome this problem, Whitcombe (2002) introduced constants V Vp s0 0 , and \uf0720 which allow elastic impedance values to remain constant for a layer and does not change with the angle \uf071 and modified the elastic impedance function as following.", "mime": "application/pdf"}, {"id": "esrj-61365", "words": "486", "extension": ".pdf", "flesch": "60", "author": "Vargas J., Carlos A.", "title": "Letter from the editor", "date": "2016", "keywords": "earth; principle", "summary": "Editor in Chief, Earth Sciences Research Journal LE TT ER F R O M T H E ED IT O R Is not our right to be protected when the unscrupulous science is applied, especially when the environment and our lives are at risk?", "mime": "application/pdf"}, {"id": "esrj-61632", "words": "6767", "extension": ".pdf", "flesch": "57", "author": "Li, Jun; Wang, Xuben; Qin, Qingyan; Zhang, Gang; Li, Dahu; Zhou, Jun", "title": "Deep physical structure and geotectonic implications of the eastern margin of the Qinghai\u2013Tibet Plateau", "date": "2016", "keywords": "block; chinese; crustal; density; eastern; fault; longmenshan; margin; material; plateau; qtp; sichuan; structure; tectonic; uplift; wang; zhang; zone", "summary": "ABSTRACT Keywords: Eastern margin of Qinghai\u2013Tibet Plateau, Bouguer gravity, Long period magnetotellurics, Crustal fluid, Apparent density Deep physical structure and geotectonic implications of the eastern margin of the Qinghai\u2013Tibet Plateau ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v20n4.61632 G E O D Y N A M IC S EARTH SCIENCES RESEARCH JOURNAL Earth Sci. The image (Fig. 5) reveals the extensive presence of negative gravity anomalies in the middle\u2013lower crusts of the Songpan block and eastern margin of the Longmenshan tectonic zone, at a depth of 20\u201340 km.", "mime": "application/pdf"}, {"id": "esrj-61633", "words": "4204", "extension": ".pdf", "flesch": "58", "author": "Yang, Yu; Zhang, Chengwei; Tian, Huijun; Chen, Wangang; Peng, Xiadong; Zhang, Hao", "title": "The pilot appraisal of acid fracturing of coalbed methane reservoir in southeast Qinshui Basin, China", "date": "2016", "keywords": "acid; basin; carbonate; cbm; coal; fracture; fracturing; gas; methane; minerals; pad; qinshui; reservoir", "summary": "2. Natural Fracture Net and Mineral Contents 2.1 Observation of macro-scale nature fracture The main pay zones of Qinshui Basin coal bed methane are named as 3# and 15# coal seams. Through downhole observations, SEM and X-ray diffraction analysis, we can see fillings in coal fractures as that most of the clay minerals are kaolinite or illite, and the carbonate fillings in both macro- scale fracture and miro-scale fracture are also abundant.", "mime": "application/pdf"}, {"id": "esrj-62063", "words": "5851", "extension": ".pdf", "flesch": "49", "author": "Qian, Fengkui; Wang, Weiwen; Zhang, Xuefeng; Zhang, Jingye; Bian, Zhenxing", "title": "Comprehensive landscape characteristics of the arable land red line in Donggang, China", "date": "2022", "keywords": "area; characteristics; china; city; donggang; evaluation; farmland; landscape; landscape characteristics; line; pattern; plots; resources; study; value", "summary": "Evaluation for landscape aesthetic value of the Natural World Heritage Site. Effects of past landscape changes on aesthetic landscape values in the European Alps.", "mime": "application/pdf"}, {"id": "esrj-62287", "words": "7806", "extension": ".pdf", "flesch": "58", "author": "Chu, Ya; Liu, Songyu; Cai, Guojun", "title": "Characterization on the correlation between SPT-N and small strain shear modulus Gmax of Jiangsu silts of China", "date": "2021", "keywords": "content; correction; data; engineering; equation; figure; fines; gmax; modulus; n values; regression; shear; shear modulus; soil; spt; strain; values; velocity; wave", "summary": "In this study, an attempt has been made to develop the regression relationship between standard penetration test (SPT) N values and the small strain shear modulus (Gmax). Most of the existing correlations were developed based on the studies carried out in Japan and in India, where N values are measured with hammer energy of 78%, which may not be directly applicable for other regions because of the variation in SPT hammer energy which in China is about 55%.", "mime": "application/pdf"}, {"id": "esrj-62389", "words": "5061", "extension": ".pdf", "flesch": "66", "author": "Chen, Kun-Ting; Lin, Chia-Hsing; chen, Xiao-Qing; Hu, Gui-Sheng; Guo, Xiao-Jun; Shieh, Chjeng-Lun", "title": "An Assessment Method for Debris Flow Dam Formation in Taiwan", "date": "2018", "keywords": "branch; dam; debris; debris flow; deposition; flow; flow dam; formation; landslide; method; river; typhoon", "summary": "Third, the topographical effect plays an important role in debris flow dam formation; steep narrow valleys require relatively small volumes or discharge of debris flow to block the main branch of the river and form a dam (Costa and Schuster, 1988). This methodology can also be applied to identify the formation of debris flow dams.", "mime": "application/pdf"}, {"id": "esrj-62552", "words": "7861", "extension": ".pdf", "flesch": "56", "author": "Oktar, Osman; Erdo\u011fan, Hediye", "title": "Research of behaviors of continuous GNSS station by signal analysis methods", "date": "2018", "keywords": "analysis; components; coordinate; cors; days; direction; energy; gnss; linear; movements; north; series; signal; stations; time; time series; wavelet", "summary": "6 shows that there are 60, 90, and 312 days of periodic movements in Up direction of station YUNA coordinate time series and 15, 42,76, and 129 days of periodic movements in North direction of station KNYA1 coordinate time series. DWT was carried out to GNSS coordinate time series of North, East, and Up coordinates components of stations with multiresolutional analysis.", "mime": "application/pdf"}, {"id": "esrj-62783", "words": "626", "extension": ".pdf", "flesch": "47", "author": "Vargas J., Carlos A.", "title": "Letter from the editor", "date": "2016", "keywords": "conference; earth; journal", "summary": "At the end of the 2016 and early 2017, Earth Sciences Research Journal wants to thank you for making this project a successful journal. In Turkey, a country from many papers are coming from to Earth Sciences Research Journal, will celebrate the Fourth International Conference on Earthquake Engineering and Seismology, on October.", "mime": "application/pdf"}, {"id": "esrj-62812", "words": "7848", "extension": ".pdf", "flesch": "59", "author": "Tiryakioglu, Ibrahim; Yavasoglu, Hakan; Ugur, Mehmet Ali Ugur; Ozkaymak, Caglar; Yilmaz, Mustafa; Kocaoglu, Hasan; Turgut, Bayram", "title": "Analysis of October 23 (Mw 7.2) and November 9 (Mw 5.6), 2011 Van Earthquakes Using Long-Term GNSS Time Series", "date": "2017", "keywords": "analysis; data; deformation; direction; earthquake; et al; fault; figure; gnss; october; post; region; series; stations; time; turkey; van", "summary": "ABSTRACT Keywords: Van earthquake, GNSS, CORS-TR, time series Analysis of October 23 (Mw 7.2) and November 9 (Mw 5.6), 2011 Van Earthquakes Using Long-Term GNSS Time Series An\u00e1lisis de los terremotos de octubre 23 (7.2 Mw) y noviembre 9 (5.6 Mw) de 2011 en Van a trav\u00e9s de series temporales GNSS a largo plazo ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v21n3.62812 I. Tiryakioglu1, H. Yavasoglu2, M. A. Ugur1, C. Ozkaymak3, M. Yilmaz1,*, H. Kocaoglu1, B. Turgut1 1 Geomatics Engineering, Faculty of Engineering, Afyon Kocatepe University, TR-3200, Afyonkarahisar, Turkey. According to the observations, post-seismic deformation continued at the stations close to the epicenter of the earthquake.", "mime": "application/pdf"}, {"id": "esrj-63002", "words": "3072", "extension": ".pdf", "flesch": "57", "author": "Huang, Lanying; Liu, Shengdong; Wang, Bo; Zhou, Fubao", "title": "Quantitative Calculation of Aquifer Water Quantity Using TEM Data", "date": "2017", "keywords": "aquifer; china; coal; data; electromagnetic; figure; method; resistivity; tem; water", "summary": "Conclusions TEM resistivity imaging boasts rapid imaging, high quantification level, and high resolution, especially when it comes to detecting low resistivity body with a high-resistivity overlayer. Therefore, transient electromagnetic method (TEM) was proposed, and TEM data was processed to detect the water yield property of a targeted layer in the coal mine.", "mime": "application/pdf"}, {"id": "esrj-63003", "words": "3517", "extension": ".pdf", "flesch": "55", "author": "Chen, Wangang; Yang, Yu; Sun, Hansen; Zhang, Chengwei; Wen, Qin; Li, Yanyan", "title": "Solution and type curves for the seepage model of the water-bearing coalbed with leakage recharge", "date": "2017", "keywords": "coalbed; curves; dimensionless; layer; leakage; model; pressure; seepage; type; water", "summary": "A group of pressure derivative type curves (Figure 3) are drawn, with as ordinate against as abscissa and -2S Deb as the curve parameter. According to the definitions of dimensionless pressure, dimensionless time and dimensionless radius, the dimensionless partial differential equation is obtained after simplification.", "mime": "application/pdf"}, {"id": "esrj-63004", "words": "5355", "extension": ".pdf", "flesch": "57", "author": "Deng, Hua; Li, Yan; Zhang, Yingchao; Zhou, Hou; Cheng, Peipei; Wang, Jia; Ashraf, Muhammad Aqeel", "title": "Prediction of Hub Height Winds over the Plateau Terrain by using WRF /YSU/Noah and Statistical Forecast", "date": "2017", "keywords": "ann; forecast; forecasting; model; noah; prediction; speed; statistical; svm; term; time; wind; wind speed; wrf; ysu", "summary": "The WRF/YSU/Noah outputs without any post-processing show the lowest average 70-m wind speeds, which indicates that the NWP model outputs combined with statistical techniques are necessary for wind speed forecast. The three time-scale forecasting successfully forecast the westerly (from SSW to NNW) speed at 05012, and the nowcasting shows a significant degree of improvement in wind speed forecasting at all four sites.", "mime": "application/pdf"}, {"id": "esrj-63006", "words": "4503", "extension": ".pdf", "flesch": "45", "author": "Wang, Bo; Liu, Shengdong; Li, Shining; Zhou, Fubao", "title": "Double-transmitting and Sextuple-receiving Borehole Transient Electromagnetic Method and Experimental Study", "date": "2017", "keywords": "anomaly; borehole; field; figure; loops; radial; receiving; response; tem; transient; transmitting", "summary": "Schematic diagram of borehole TEM signal response. En este trabajo se dedujo la respuesta de las ecuaciones del modo transmisi\u00f3n-recepci\u00f3n para la transmisi\u00f3n doble y la recepci\u00f3n s\u00e9xtuple en las perforaciones con el m\u00e9todo TEM, y se obtuvieron las respuestas caracter\u00edsticas del segmento de inducci\u00f3n y el segmento de atenuaci\u00f3n de las ondas de recepci\u00f3n basados en la soluci\u00f3n de las ecuaciones en condici\u00f3n de apagado de la gr\u00e1fica de funci\u00f3n, lo que proporciona las bases para el an\u00e1lisis te\u00f3rico.", "mime": "application/pdf"}, {"id": "esrj-63007", "words": "2442", "extension": ".pdf", "flesch": "55", "author": "Zhao, Baojun; Sun, Wenjin; Zhan, Tianming", "title": "The Modified Quasi-geostrophic Barotropic Models Based on Unsteady Topography", "date": "2017", "keywords": "barotropic; eqs; equation; journal; models; scale; topography", "summary": "\u03bb ~ 10 magnitude Large-scale atmospheric motion of large topography is suitable for such conditions (L ~ 106 m, U ~ 10m/s, f 0 ~ 10-4 s -1 ). Yang (2011,2012) and Song (2012, 2013) discussed topography changes over time discussed topography changes over time t, the influence of the nonlinear long wave amplitude and waveform.", "mime": "application/pdf"}, {"id": "esrj-63220", "words": "8371", "extension": ".pdf", "flesch": "49", "author": "Sijie, Han; Shuxun, Sang ; Peiming, Zhou ; Jinlong, Jia ; Jingjing, Liang ", "title": "Burial history and the evolution of hydrocarbon generation in Carboniferous-Permian coal measures within the Jiyang super-depression, China", "date": "2021", "keywords": "basin; burial; china; coal; depth; generation; hydrocarbon; hydrocarbon generation; jiyang; jiyang sub; sub; temperature; vro", "summary": "Keywords: Burial history; Carboniferous-Permian; Jiyang Sub-basin; maturation evolution; secondary hydrocarbon generation. However, to date, few specialized quantitative studies have investigated hydrocarbon generation thresholds and the relationship between subsidence rates and the evolution of vitrinite reflectance (VRo) in the Jiyang Sub-basin.", "mime": "application/pdf"}, {"id": "esrj-63425", "words": "7377", "extension": ".pdf", "flesch": "51", "author": "Alvarez Ysabel, Santo Trinidad; Agredo Cardona, Gustavo Adolfo; Rinc\u00f3n, David Felipe", "title": "Quantifying the statistical distribution of Tropical Cyclone Activity in the historical record of the Dominican Republic", "date": "2017", "keywords": "activity; analysis; area; atlantic; caribbean; cyclone; database; distribution; dominican; events; hurricane; landfall; major; period; probability; republic; storms; study; time; tracks; tropical; year", "summary": "In this study, we re-examined the Official Hurricane Database from the National Hurricane Center (HURDAT- NHC), an agency associated with NOAA, for tropical cyclone activity from 1851 to 2012for the Dominican Republic on the island of Hispaniola in the Caribbean Basin. The North East Atlantic (NEA) and the Caribbean Sea Basin (CSB) are characterized as a high probability zone for the formation, development and impact of tropical cyclones (TC), according to the National Ocean and Atmospheric Administration (NOAA).", "mime": "application/pdf"}, {"id": "esrj-63442", "words": "6632", "extension": ".pdf", "flesch": "50", "author": "Dorado, Camilo E.; Molano, Juan C.", "title": "Microthermometry and Raman spectroscopy of fluid inclusions from El Vapor gold mineralizations, Colombia", "date": "2018", "keywords": "co2; crystals; district; el vapor; fig; fluid; gold; inclusions; phase; quartz; raman; temperature; type; vapor", "summary": "Microthermometry and Raman spectroscopy of fluid inclusions from El Vapor gold mineralizations, Colombia. Based on petrography and Raman spectroscopy, four types of fluid inclusions could be recognized: (1)", "mime": "application/pdf"}, {"id": "esrj-63443", "words": "7719", "extension": ".pdf", "flesch": "51", "author": "Rojas Barbosa, Sonia; Molano, Juan Carlos; Cramer, Thomas", "title": "Petrography, microthermometry, and isotopy of the gold veins from Vetas, Santander (Colombia)", "date": "2020", "keywords": "event; figure; fluid; gold; inclusions; mineralization; mineralizing; pyrite; quartz; rocks; santander; sericite; sphalerite; stage; temperature; veins; vetas", "summary": "Evaluaci\u00f3n geol\u00f3gica y determinaci\u00f3n de las reservas de oro y plata de la mina \u201cLa Botella\u201d. Los is\u00f3topos estables, \u220218 O, \u2202D y \u220234 S y el an\u00e1lisis de inclusiones de fluidos infieren que los fluidos fueron producto de una mezcla de fluidos mete\u00f3ricos y magm\u00e1ticos con baja salinidad y temperaturas de atrapamiento m\u00ednimas entre 200\u00b0 C y 390\u00b0 C. La asociaci\u00f3n mineralogica y las inclusiones fluidas, en el primer evento, muestran caracter\u00edsticas de un ambiente epitermal de baja sulfuraci\u00f3n; el segundo evento m\u00e1s caliente presenta una firma magm\u00e1tica m\u00e1s prominente sobreimponiendo un sistema epitermal de intermedia sulfuraci\u00f3n sobre el de baja sulfuraci\u00f3n, con un poco m\u00e1s de salinidad en los fluidos y m\u00e1s diversidad mineral\u00f3gica.", "mime": "application/pdf"}, {"id": "esrj-63455", "words": "13647", "extension": ".pdf", "flesch": "53", "author": "Santacruz de Le\u00f3n, Germ\u00e1n; Ramos Leal, Jos\u00e9 Alfredo; Mor\u00e1n Ram\u00edrez, Janete; L\u00f3pez \u00c1lvarez, Briseida; Santacruz de Le\u00f3n, Eugenio Eliseo", "title": "Quality indices of groundwater for agricultural use in the Soconusco, Chiapas, Mexico", "date": "2017", "keywords": "agua; algorithm; analysis; aquifer; chiapas; concentration; data; del; density; detection; distribution; equation; fig; flow; function; groundwater; irrigation; journal; mean; method; model; m\u00e9xico; para; probability; profile; quality; salinity; samples; soconusco; sodium; study; use; values; velocity; water; water quality", "summary": "ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v21n3.65172 Este trabajo propone un modelo de velocidad media general y un modelo de concentraci\u00f3n de sedimentos suspendidos (CSS) para expresar la distribuci\u00f3n en cada punto de la secci\u00f3n de cruce del flujo turbulento de cizalla mediante el uso de funciones de densidad de probabilidad (PDF).. RESUMEN Palabras clave: salinidad, sodicidad, presi\u00f3n osm\u00f3tica, relaci\u00f3n de adsorci\u00f3n de sodio, conductividad el\u00e9ctrica, riego, acu\u00edfero.", "mime": "application/pdf"}, {"id": "esrj-63860", "words": "9503", "extension": ".pdf", "flesch": "55", "author": "Ziggah, Yao Yevenyo; Youjian, Hu; Tierra, Alfonso Rodrigo; Laari, Prosper Basommi", "title": "Coordinate Transformation between Global and Local Datums Based on Artificial Neural Network with K-Fold Cross-Validation: A Case Study, Ghana", "date": "2019", "keywords": "bursa; coordinates; cross; data; fold; ghana; horizontal; model; network; parameters; performance; rbfnn; reference; study; subset; table; testing; training; transformation; validation; war; wolf; ziggah", "summary": "The present authors were also motivated to apply the KCV approach on Ghana geodetic reference network data for several reasons. Consequently, this study, for the first time, explored the potential of using K-fold cross-validation method in the performance assessment of radial basis function neural network and Bursa-Wolf model under data- insufficient situation in Ghana geodetic reference network.", "mime": "application/pdf"}, {"id": "esrj-64008", "words": "5659", "extension": ".pdf", "flesch": "48", "author": "Ogly Gahramanov, Gahraman Nariman", "title": "Formation of oil and gas reservoirs in deep water areas of the South Caspian Depression", "date": "2017", "keywords": "basin; caspian; deposits; depths; formation; gas; oil; pressure; reservoir; scd; structure", "summary": "Next, it is expedient to investigate the mechanism of formation of SCD structures during the emergence of vertical forces. Estimations of excessive pressures for various thicknesses and depths of gas condensate deposits were carried out in order to determine the regularities of the changes in excessive pressure and the gradients of reservoir pressure with depth (Table 1).", "mime": "application/pdf"}, {"id": "esrj-64463", "words": "451", "extension": ".pdf", "flesch": "67", "author": "Vargas Jim\u00e9nez, Carlos A.", "title": "Letter from the editor", "date": "2017", "keywords": "earth; science", "summary": "Science, not silence, Oceans are rising, and so are we, Fund Science = Fun Future, Policy without science is a Biohazard, Science is not a partisan issue, it is the foundation of our society, Science is NOT an opinion, were some of the messages exhibited by demonstrators in their marches. Climatic change, clean energy, petroleum, politic points of view using science for their own benefit.", "mime": "application/pdf"}, {"id": "esrj-64666", "words": "6078", "extension": ".pdf", "flesch": "67", "author": "Wan, Xiaoyun; Ran, Jiangjun", "title": "An alternative method to improve gravity field models by incorporating GOCE gradient data", "date": "2018", "keywords": "data; eigen5c; field; goce; gradient; gravity; model", "summary": "Combing EGM2008 with GOCE gravity field models. However, as the large quantity of data makes the computational cost of this process prohibitive, an alternative method is to utilize GOCE gravity gradient data to improve existing gravity field models that have been derived from other kinds of observations.", "mime": "application/pdf"}, {"id": "esrj-64938", "words": "3852", "extension": ".pdf", "flesch": "54", "author": "Wang, Bo; Liu, Shengdong; Zhou, Fubao; Zhang, Jun; Zheng, Fangkun", "title": "Diffraction Characteristics of Small Fault ahead of tunnel face in coal roadway", "date": "2017", "keywords": "channel; coal; detection; diffraction; face; fault; roadway; tunnel; wave", "summary": "In the aspect of reflected channel wave, Essen et al. (2007) analyzed the response characteristics of Rayleigh channel wave of split coal through numerical simulation; Yang et al. (2012) carried out numerical simulation research with seismic wave field of small structure, and then pointed out that the Rayleigh surface wave generated from the reflection of Rayleigh channel wave can be used as the characteristic wave of the advanced detection of small structure. According to the seismic records and the wavefield snapshots of the model, with reference to kinematics and dynamics characteristics of various types of seismic wave, all kinds of waves can be recognized from the complex seismic wavefield, and they are as follows: A direct P-wave, this direct P-wave is with circular propagation from the source to the surrounding rock.", "mime": "application/pdf"}, {"id": "esrj-65172", "words": "3600", "extension": ".pdf", "flesch": "54", "author": "Wu, Guanglin; Zhu, Liangsheng; Li, Fangcheng", "title": "Mean velocity and suspended sediment concentration profile model of turbulent shear flow with probability density function", "date": "2017", "keywords": "density; flow; function; mean; model; probability; profile; shear; ssc; velocity", "summary": "Other laws for turbulent velocity profile or concentration profile are based on an indirect turbulence model (Bucci et al., 2008; Nucci and Fiorucci, 2011). Thus, the upper mean velocity will increase along with an increasing value of m. The curve shape fits turbulent velocity profile when the value of m is lower in this case, such as m=0.25, 0.1 and 0.01.", "mime": "application/pdf"}, {"id": "esrj-65185", "words": "4653", "extension": ".pdf", "flesch": "49", "author": "Ye, Xiaoling; Yang, Xing; Xiong, Xiong; Yang, Shuai; Chen, Yang", "title": "Spatial Quality Control Method for Surface Temperature Observations Based on Multiple Elements", "date": "2017", "keywords": "control; correlation; data; error; method; model; observations; pca; quality; srt; stations; target; temperature", "summary": "- Additionally, the main reason for the performance difference between the SRT method and RF method is the sparse distribution of neighboring stations or low spatial correlation between values. However, surface observation stations are easily affected by the gross error and random error during the data acquisition process.", "mime": "application/pdf"}, {"id": "esrj-65192", "words": "6645", "extension": ".pdf", "flesch": "56", "author": "Ouyang, Yuan; Yang, Wunian; Huang, Hanxiao; Liu, Hong; Zhang, Jianlong; Zhang, Jianhua", "title": "Metallogenic Dynamics Background of Ga\u2019erqiong Cu-Au Deposit in Tibet, China", "date": "2017", "keywords": "block; crust; deposit; diorite; formation; ga\u2019erqiong; quartz; rock; tibet; zircon", "summary": "Metallogenic Dynamics Background of Ga\u2019erqiong Cu- Au Deposit in Tibet, China. The Ga\u2019erqiong Cu-Au deposit, which sits on the north side of the Coq\u00ean-Xainzamagmatite belt, is a large-scale skarn- type deposit, whose ore body has formed in the skarn zone in the contact part of quartz diorite and marble of Duoai formation or the cracks of quartz diorite.", "mime": "application/pdf"}, {"id": "esrj-65215", "words": "3628", "extension": ".pdf", "flesch": "52", "author": "Zhao, Jianjun; Zhoub, Junwu; Su, Weixing; Liu, Fang", "title": "Online Outlier Detection for Time-varying Time Series on Improved ARHMM in Geological Mineral Grade Analysis Process", "date": "2017", "keywords": "algorithm; analysis; arhmm; data; detection; grade; method; mineral; model; order; outlier; time", "summary": "ARHMM outlier detection algorithm also composed of two steps: One step-- Preliminary detection From Equation 1, we can see that there is a deviation between estimated process data by AR model and real process data. Subsequent simulation by model data and practical application verify the accuracy, robustness, and property of online detection of the algorithm.", "mime": "application/pdf"}, {"id": "esrj-65216", "words": "4134", "extension": ".pdf", "flesch": "60", "author": "Zhou, Yu; Wang, Tingling", "title": "PNN-based Rockburst Prediction Model and Its Applications", "date": "2017", "keywords": "burst; classification; method; model; neural; pnn; prediction; results; rock; rock burst; training", "summary": "According to the mechanism of rock burst, rocks\u2019 maximum tangential stress \u03c3\u04e9, rocks\u2019 uniaxial compressive strength \u03c3c, rocks\u2019 uniaxial tensile strength \u03c3t and elastic energy index Wet are defined as the criterion indices for rock burst prediction in the proposed PNN-model. Applying our proposed prediction model to rock burst prediction of this engineering, the result of prediction is light rock burst activity.", "mime": "application/pdf"}, {"id": "esrj-65459", "words": "4410", "extension": ".pdf", "flesch": "47", "author": "Hernandez Pardo, Orlando; Alexander, G. C.", "title": "Vichada asteroid impact effects from simulation of regional environmental consequences of a meteoroid impact on Earth", "date": "2018", "keywords": "asteroid; consequences; crater; del; diameter; earth; effects; impact; impactor; structure; target; vichada", "summary": "Strong positive magnetic anomalies from 100nT to 300nT infer the presence of a hidden local Precambrian crystalline basement that could be affected by intensive faulting producing tectonic blocks, that are dipping to the center of the structure, showing a typical \u201cdomino structure\u201d of impact craters such as that of Sudbury, Ontario, Canada (Evans, 1993). The structure has the typical multi-ring shape configuration of large impact structures: A central peak ring impact structure.", "mime": "application/pdf"}, {"id": "esrj-65577", "words": "5691", "extension": ".pdf", "flesch": "50", "author": "Cepeda Cuervo, Edilberto; Achcar, Jorge Alberto; Andrade, Marinho G.", "title": "Seasonal Hydrological and Meteorological Time Series", "date": "2018", "keywords": "analysis; beta; data; distribution; hydrological; mean; model; parameters; seasonal; series; time; time series; variance", "summary": "Different time series models as ARMA and higher orders of MA models have been used by some authors when considering hydrologic regionalization of watersheds (see for example, Chiang et al., 2002 a, b; Wang et al., 2015). In many studies, hydrologists also use time series data to display the amount of rainfall that has fallen in a region for the past day, year or a period of 10 years (see for example, Guimaraes& Santos, 2011, and Lee & Lee, 2000).", "mime": "application/pdf"}, {"id": "esrj-65640", "words": "5044", "extension": ".pdf", "flesch": "54", "author": "Cord\u00e3o Neto, Manoel Porfirio; Hern\u00e1ndez, Oisy; Lorenzo Reinaldo, Raydel; Borges, Camila; Caicedo, Bernardo", "title": "Study of the relationship between hydro-mechanical soil behavior and microstructure of a structured soil", "date": "2018", "keywords": "behavior; bras\u00edlia; clay; consolidation; curves; figure; psd; results; samples; size; slurry; soil; structure", "summary": "(a) (b) All tests presented in this study were performed on soil samples obtained from the experimental field of the University of Bras\u00edlia (UnB) (from a depth of 2 m) in Bras\u00edlia City, DF, Brazil. The general and congruent effects of structure in natural soils and weak rocks.", "mime": "application/pdf"}, {"id": "esrj-66088", "words": "4729", "extension": ".pdf", "flesch": "53", "author": "Jabbar, Wria Jihad; Naqshabandi, Srood Farooq; Al-Juboury, Falah Khalaf", "title": "Petrophysical properties of the Lower Cretaceous formations in the Shaikhan oilfield, northern Iraq", "date": "2018", "keywords": "density; formation; hydrocarbon; limestone; log; porosity; reservoir; saturation; shaikhan-8; shale; volume; water", "summary": "It is the amount of pore volume in a rock that is occupied by formation water. Pickett plot method is used to calculate formation water resistivity (Rw), saturation exponent (n) and cementation exponent (m) the values are 0.065ohm, 2, and 2.06 respectively.", "mime": "application/pdf"}, {"id": "esrj-66103", "words": "3215", "extension": ".pdf", "flesch": "61", "author": "He, Peng; Sun, Liuying; Wang, Zhen", "title": "Direct Shear Test of Unsaturated Soil", "date": "2017", "keywords": "figure; matric; parameters; pressure; results; shear; soil; stress; test", "summary": "It can be summarized from Figure 5 that soil shear stress increased with the rising of vertical pressure and matric suction. Direct shear test stress parameters of unsaturated soil.", "mime": "application/pdf"}, {"id": "esrj-66104", "words": "6449", "extension": ".pdf", "flesch": "56", "author": "Zhou, Beibei; Chen, Xiaopeng", "title": "Effect of Nano-Carbon on Water Holding Capacity in a Sandy Soil of the Loess Plateau", "date": "2017", "keywords": "capacity; contents; effect; infiltration; layer; mixture; nanocarbon; nanocarbon contents; soil; soil water; water; water content", "summary": "Soil water contents that below the soil-nano carbon layer decreased sharply. Effect of different thicknesses of soil-nano carbon layers and nano carbon contents on soil water contents in the soil profile The findings of this study presented above have shown that the soil- nanocarbon could increase soil water infiltration rates.", "mime": "application/pdf"}, {"id": "esrj-66105", "words": "4050", "extension": ".pdf", "flesch": "55", "author": "Lu, Junfu; Li, Di; Xue, Xiaoqiang; Ling, Shenlin", "title": "Macro-Micromechanical Properties of Sandy Pebble Soil of Different Coarse-Grained Content", "date": "2018", "keywords": "coarse; content; element; figure; numerical; parameters; particle; soil; strain; stress; test; triaxial", "summary": "By checking calculation, the micromechanical parameters of sandy pebble soils of four different gradations were obtained, and the effect of coarse-grained content on the mechanical properties of sandy pebble soil was analyzed from the macro and micro points of view, and the following conclusions were obtained: ANALYSIS OF DISPLACEMENT OF SANDY PEBBLE SOIL PARTICLES The displacement of sandy pebble soil particles in the triaxial compression process was analyzed, to reveal the micromovement of sandy pebble soil particles in the triaxial compression process.", "mime": "application/pdf"}, {"id": "esrj-66106", "words": "5041", "extension": ".pdf", "flesch": "55", "author": "Wang, Jiading; Ma, Yan; Guo, Qianyi; Chu, Di", "title": "Influence of Pressure and Water Content on Loess Collapsibility of the Xixian New Area in Shaanxi Province, China", "date": "2017", "keywords": "area; collapsibility; collapsible; content; deformation; increases; loess; pressure; soil; water; water content; xixian", "summary": "Test results and analysis 3.1 Effect of pressure and water content on compressive deformation properties of loess in the Xixian New Area The relation curves of pressure and strain at different levels of water content (Fig. 4) and the curves of water content and strain under different levels of loess pressure in the Xixian New Area (Fig. 5) were all obtained using the K0 test with 10 kinds of water content and 9 levels of pressure. Therefore, loess collapsibility will be the most important geotechnical problem in future foundation investigation and construction.", "mime": "application/pdf"}, {"id": "esrj-66107", "words": "5231", "extension": ".pdf", "flesch": "46", "author": "Zeng, Rui; Wang, Yingyan; Wang, Wanliang", "title": "A co-occurrence region based Bayesian network stepwise remote sensing image retrieval algorithm", "date": "2018", "keywords": "algorithm; bayesian; features; image; image retrieval; matching; region; retrieval; semantic; sensing; stepwise; time", "summary": "Sub-image is taken as the minimum unit to judge whether image regions are spatially connected, preventing segmented regions from being spatially unconnected (Tariq et al., 2017). By comprehensively considering significance and distance between image regions, integrated region matching allows one region to match multiple regions, thereby minimizing retrieval errors caused by inaccurate image segmentation (Yasin et al., 2017).", "mime": "application/pdf"}, {"id": "esrj-66108", "words": "4700", "extension": ".pdf", "flesch": "53", "author": "Jiang, Haibo", "title": "The Relationship between Mechanical Properties and Gradual Deterioration of Microstructures of Rock Mass Subject to Freeze-thaw Cycles", "date": "2018", "keywords": "cycles; damage; deterioration; freeze; freezing; mass; rock; samples; strength; thaw; thaw cycles", "summary": "For rock samples saturated by vacuum, 40 freeze-thaw cycles lead to a decrease of 36.86% (equivalent to 58.2 MPa) in rock strength and a drop of 44.85% (equivalent to 2.83 GPa) in elasticity modulus. With the objective to incorporate freeze-thaw cycle experiment into headrace tunnel engineering, in the present study two groups of andesite rock samples in different states are tested under the conditions of the lowest freezing temperature of \u201340 \u00baC and the thawing temperature of 20 \u00baC. Damage detection was performed by magnetic resonance imaging for the interior microstructure of rock samples subject to different freeze-thaw cycles, and the relationship between the sample mechanical properties and gradual deterioration of rock microstructures was discussed.", "mime": "application/pdf"}, {"id": "esrj-66316", "words": "9238", "extension": ".pdf", "flesch": "64", "author": "Wang, Chen; Jianchao, Liu; Haidong, zhang; Jiakun, Ge; Zhixuan, Xi; Haoran, Wang", "title": "Mineralogical features and petrogenetic significance of the clinopyroxene and hornblende of the Wuhaolai mafic complex in northern North China Craton, Inner Mongolia", "date": "2019", "keywords": "china; clinopyroxene; complex; et al; gabbro; hornblende; inner; mafic; magma; mongolia; north; pyroxenite; tectonic; wang; wt.%; wuhaolai; zhang; zhao", "summary": "Keywords: Wuhaolai mafic complex; genetic mineralogy; magmatic evolution; tectonic significance; margin of the North China Craton. He a CIEn CIFs Pyroxenite Gabbro Diorite Edenite M g/ (M g+ Fe 2+ ) Ferro-Edenite Ferropargasite (IVAl \u2265 Fe3+) Ferropargasite (IVAl \u2265 Fe3+) Pargasite (IVAl \u2265 Fe3+) Magnesio-hastingsite (IVAl \u2265 Fe3+) Ti<0,5 b 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,01,01,01,01,01,0 1,0 SiIV Figure 4. (a) Wo\u2013En\u2013Fs diagram of clinopyroxene in Wuhaolai mafic complex (after Morimoto et al., 1988); (b) Classification of hornblende in the Wuhaolai mafic complex (after Leake et al., 1997).", "mime": "application/pdf"}, {"id": "esrj-66429", "words": "11005", "extension": ".pdf", "flesch": "59", "author": "Noyola-Medrano, Cristina; Ramos-Leal, Jos\u00e9 Alfredo; L\u00f3pez-Alvarez, Briseida; Mor\u00e1n-Ram\u00edrez, Janet; Fuentes-Rivas, Rosa Mar\u00eda", "title": "Assessing the source and spatial distribution of chemical composition of a rift lake, using multivariate statistical, hydrogeochemical modeling and remote sensing", "date": "2019", "keywords": "agua; analysis; chapala; chapala lake; chemical; composition; del; et al; figure; groundwater; group; l-1; lake; lake water; lerma; multivariate; quality; rift; river; sample; surface; values; water; \ufffd \ufffd", "summary": "A critical review on monitoring of lake water quality and ecosystem information using satellite images: towards a new era of water color remote sensing. Landsat ETM+ images in the estimation of seasonal lake water quality in boreal river basins.", "mime": "application/pdf"}, {"id": "esrj-66446", "words": "428", "extension": ".pdf", "flesch": "66", "author": "Vargas Jim\u00e9nez, Carlos Alberto", "title": "Letter from the editor", "date": "2017", "keywords": "earth; geology", "summary": "As every two years, in a city strategically picked up to show the best of the Colombian and Latinamerican Geology, the Sociedad Colombiana de Geologia entity (Colombian Geology Society) presents the XVI Congress of Geology and the third Explorers Symposium. Ecopetrol, for example, announced the increase of its exploration budget this year to US$ 650 million with the final purpose of intensifying the search for new hydrocarbon reserves.", "mime": "application/pdf"}, {"id": "esrj-67859", "words": "319", "extension": ".pdf", "flesch": "65", "author": "Prieto G., Germ\u00e1n A.", "title": "Letter from the editor", "date": "2017", "keywords": "city", "summary": "Numerous casualties and at least 40 buildings collapsed in Mexico City. Both events showed a normal faulting mechanism, and although they were widely felt, their major impact was in densely populated Mexico City, where wave amplification is expected due to the geological features of the City's soil structure.", "mime": "application/pdf"}, {"id": "esrj-67925", "words": "7036", "extension": ".pdf", "flesch": "57", "author": "Wang, Pu; Jiang, Lishuai; Ma, Changqing; Yuan, Anying", "title": "Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining", "date": "2020", "keywords": "coal; deformation; effect; face; figure; floor roadway; floor stress; mining; mining stress; model; overhead; rocks; stress; working", "summary": "Keywords: Overhead mining; floor roadway; mining-induced stress; roadway stability. The evolution of mining-induced stress in the floor with different horizontal distances between working face and floor roadway was examined using universal distinct element code (UDEC) numerical simulation; the stability of the floor roadway was analyzed.", "mime": "application/pdf"}, {"id": "esrj-68100", "words": "7811", "extension": ".pdf", "flesch": "55", "author": "Godoy, Vanessa; Napa-Garc\u00eda, Gian Franco; Zuquette, L\u00e1zaro", "title": "Determination of the sodium retardation factor using different methods: Analysis of their characteristics and impact on the solute movement prediction in a structured Brazilian soil", "date": "2018", "keywords": "btc; cherry; column; concentration; determination; experimental; freeze; isotherm; journal; method; movement; prediction; retardation; sodium; soil; solute; solution; sorption; transport; url", "summary": "These results show the efficiency of the use of isotherms obtained from undisturbed soil columns to determine Rd. Using the linear isotherm model, Garga and O\u2019Shaughnessy (1994) found sodium retardation factor ranging from 2.22 to 3.6 in clay soil columns with high CEC.", "mime": "application/pdf"}, {"id": "esrj-68177", "words": "7156", "extension": ".pdf", "flesch": "58", "author": "Li, Jun; Chen, Ningsheng", "title": "The Model for Dilution Process of Landslide Triggered Debris Flow \u2014A Case of Guanba River in Tibet Southeastern Plateau", "date": "2018", "keywords": "channel; channel gradient; debris flow; density; dilution process; flow density; flow dilution; flows; gradient; guanba; model; ratio; river; section; soil; water; water flow", "summary": "Understanding and modeling the downstream dilution process of a landslide triggered debris flow is the foundation for recognizing the boundary condition and dilution mechanism of this type of debris flow, and this serves as the theoretical basis for the categorized control of viscous debris flows, diluted debris flows, hyperconcentration flows and flash floods in a drainage basin. According to the correlation between the debris flow density and the water-soil ratio and channel gradient, we have established the density evaluation model for the debris flow dilution process, which can predict the dilution process of a landslide triggered debris flow.", "mime": "application/pdf"}, {"id": "esrj-68320", "words": "5479", "extension": ".pdf", "flesch": "46", "author": "Leal, Jorge Alberto; Ochoa, Luis Hernan; Contreras, Carmen Cecilia", "title": "Automatic Identification of Calcareous Lithologies Using Support Vector Machines, Borehole Logs and Fractal Dimension of Borehole Electrical Imaging", "date": "2018", "keywords": "borehole; colombia; data; dimension; figure; formation; fractal; image; intervals; limestone; logs; resistivity; rocks; shale; svm", "summary": "Identificaci\u00f3n y modelado de fracturas naturales en pozos de un yacimiento de hidrocarburos ubicado ABSTRACT Keywords: machine learning; support vector machines; borehole logs, image logs; fractal dimension; calcareous lithologies; Catatumbo Basin.", "mime": "application/pdf"}, {"id": "esrj-68391", "words": "9003", "extension": ".pdf", "flesch": "57", "author": "Li, Shuheng; Guo, Wei; Gao, Na", "title": "Climatic and hydrological changes in Gaoyou Lake, eastern China over the last millennium, inferred from pollen and grain size records", "date": "2022", "keywords": "changes; china; climate; core; et al; gaoyou; gaoyou lake; grain; gy08; lake; pollen; river; sediment; size; water", "summary": "However, the paleoenvironmental studies of Gaoyou Lake sediments have not received adequate attention. Our research team combined grain size, magnetic susceptibility, and geochemical proxies in Gaoyou Lake sediments to infer regional climate fluctuations (Li et al., 2007; Li et al., 2015).", "mime": "application/pdf"}, {"id": "esrj-68553", "words": "11308", "extension": ".pdf", "flesch": "54", "author": "Martinez-Carvajal, Hernan Eduardo; de Moraes Guimaraes Silva, Maria Tamara; Garcia-Aristizabal, Edwin Fabian; Aristizabal-Giraldo, Edier Vicente; Larios-Benavides, Mayra Alejandra", "title": "A mathematical approach for assessing landslide vulnerability", "date": "2018", "keywords": "aristiz\u00e1bal; assessment; buildings; damage; debris; equation; figure; flow; gradient; hazard; intensity; landslide; landslide vulnerability; mass; model; resistance; risk; table; values; vulnerability", "summary": "A mathematical approach for assessing landslide vulnerability. ABSTRACT Keywords: Landslide vulnerability; quantitative vulnerability; vulnerability assessment; landslide risk analysis; vulnerability T-Model.", "mime": "application/pdf"}, {"id": "esrj-68839", "words": "7715", "extension": ".pdf", "flesch": "45", "author": "Osorio-Rodriguez, Daniela; Sanchez-Qui\u00f1\u00f3nez, Carlos Alberto", "title": "Biological and geological characterization of modern biofilms and microbial mats and comparison with similar lithified structures in Colombian Cretaceous formations", "date": "2018", "keywords": "biofilms; colombia; cyanobacteria; figure; formation; laminae; mats; order; schieber; sections; spring; structures", "summary": "Biological and geological characterization of modern biofilms and microbial mats and comparison with similar lithified structures in Colombian Cretaceous formations. DOI:https://doi.org/10.15446/esrj.v22n3.68839 Microorganisms may play an important role in the binding of sediments and the formation of sedimentary structures, by means of the formation of biofilms and microbial mats.", "mime": "application/pdf"}, {"id": "esrj-69332", "words": "7678", "extension": ".pdf", "flesch": "61", "author": "Fuentes, William Mario; Hurtado, Carolina; Lascarro, Carlos", "title": "On the influence of the spatial distribution of fine content in the hydraulic conductivity of sand-clay mixtures", "date": "2018", "keywords": "clay; conductivity; content; deviation; distribution; factor; figure; hydraulic; mean; mixtures; results; sand; soil; standard; test; value; water", "summary": "Substitution of Equation 6 in Equation 5 yields to the following relation for the equivalent hydraulic conductivity: k v h eq = \u2206 (7) Results of simulations for mean fine contents of with different values of the standard deviation \uf073 are plotted from Figure 7 to Figure 12. Mean fine content of .", "mime": "application/pdf"}, {"id": "esrj-69491", "words": "8591", "extension": ".pdf", "flesch": "53", "author": "Rezaei, Sadegh; Shooshpasha, Issa; Rezaei, Hamed", "title": "Empirical Correlation between Geotechnical and Geophysical Parameters in a Landslide Zone (Case Study: Nargeschal Landslide)", "date": "2018", "keywords": "area; coefficient; correlation; data; et al; figure; landslide; parameters; resistivity; results; shear; soil; spt; study; velocity; wave", "summary": "These included SPT-N \u2013 electrical resistivity, soil moisture content \u2013 electrical resistivity, and SPT-N \u2013 shear wave velocity correlations. Quantitative assessment of shear wave velocity correlations in the shallow bedrock sites.", "mime": "application/pdf"}, {"id": "esrj-69760", "words": "5454", "extension": ".pdf", "flesch": "57", "author": "Mart\u00ednez-S\u00e1nchez, Dilan Arturo; Jim\u00e9nez D\u00edaz, Giovanny", "title": "Hydraulic fracturing considerations: Insights from analogue models, and its viability in Colombia", "date": "2019", "keywords": "anisotropies; bed; colombia; faults; figure; fluid; fractures; fracturing; gelatin; hydraulic; model; phase; ratio; sand; zone", "summary": "14 Mart\u00ednez-S\u00e1nchez, Dilan A, Jim\u00e9nez, Giovanny CONCLUSIONS The experimental assemblage made is an appropriate tool to study the generation of hydraulic fractures, due to the good scaling process of the materials. Hydraulic fracturing considerations: insights from analogue models, and its viability in Colombia.", "mime": "application/pdf"}, {"id": "esrj-69899", "words": "391", "extension": ".pdf", "flesch": "49", "author": "Prieto G., Germ\u00e1n A.", "title": "This issue of Earth Science Research Journal", "date": "2017", "keywords": "earth; sciences", "summary": "Using high-resolution aeromagnetic survey data in combination with other geological-geophysical thematic maps, Batista takes advantage of GIS tools for identifying different tectonic regimes in the Sabinas Basin, northeastern Mexico. Loess deposits can have very large thicknesses, and for engineering purposes it is important to better understand the geotechnical response of the loess deposits.", "mime": "application/pdf"}, {"id": "esrj-69904", "words": "9862", "extension": ".pdf", "flesch": "59", "author": "Silva, Richarde Marques da; Santos, Celso Augusto Guimar\u00e3es; Maranh\u00e3o, Karinna Ugulino de Ara\u00fajo; Silva, Alexandro Medeiros; Lima, Val\u00e9ria Raquel Porto de", "title": "Geospatial assessment of eco-environmental changes in desertification area of the Brazilian semi-arid region", "date": "2018", "keywords": "area; arid; brazil; caatinga; changes; cover; erosion; et al; factor; journal; land; land cover; loss; monteiro; region; silva; soil; study; values; vegetation", "summary": "Furthermore, despite an extensive body of knowledge about the relationships among vegetative cover, soil erosion and eco-environmental changes (Srinivasan & Galv\u00e3o 1995; Marengo et al., 2016; Martins et al., 2018), very little is known about such processes in the caatinga biome (Schulz et al., 2017), because this biome is poorly analyzed and considered as one of the more neglected of Brazilian biomes (Beuchle et al., 2015; Ribeiro et al., 2016). Data availability of soil erosion and land changes in the caatinga is limited to thesis, few papers or technical notes published in regional journals, which makes it difficult for an international audience (Silva et al., 2017).", "mime": "application/pdf"}, {"id": "esrj-69916", "words": "12894", "extension": ".pdf", "flesch": "54", "author": "P\u00e1ramo-Fonseca, Mar\u00eda Eur\u00eddice; Benavides-Cabra, Cristian David; Guti\u00e9rrez, Ingry Esmirna", "title": "A new large Pliosaurid from the Barremian (Lower Cretaceous) of S\u00e1chica, Boyac\u00e1, Colombia", "date": "2018", "keywords": "anterior; benson; boyacensis; cervical; colombia; cretaceous; dorsal; et al; figure; fischer; fonseca; length; mandibular; mp111209; pliosaurid; posterior; p\u00e1ramo; queenslandicus; specimen; teeth; vertebrae", "summary": "Scale bar=500 mm. 227A new large Pliosaurid from the Barremian (Lower Cretaceous) of S\u00e1chica, Boyac\u00e1, Colombia et al., 2013; Benson and Druckenmiller, 2014; P\u00e1ramo-Fonseca et al., 2016; Fischer et al., 2017), Peloneustes philarchus Seeley, 1869 (Andrews, 1913; Ketchum and Benson, 2011a) and Hauffiosaurus O\u2019Keefe, 2001 (O\u2019Keefe, 2001; Benson et al., 2011). al., 2012; Benson et al., 2013).", "mime": "application/pdf"}, {"id": "esrj-70539", "words": "3168", "extension": ".pdf", "flesch": "56", "author": "Zhu, Haihua; Zhang, Tingshan; Lang, Jun; Zeng, Jianli; Liang, Xing; He, Yong; Wang, Gaocheng; Li, Junjun", "title": "Influence of black shale composition on methane adsorption and gas content: Implications for gas storage in the Longmaxi black shales", "date": "2018", "keywords": "adsorption; capacity; ch4; content; gas; gas content; longmaxi; samples; shale; toc", "summary": "In the shale samples from Well YS8,the preservation conditions and thermal evolution processes of organic matterare similar, thus enablingan evaluation ofthe influence of shale composition on shale gas content. 62 Haihua Zhu, Tingshan Zhang, Jun Lang, Jianli Zeng, Xing Liang, Yong He, Gaocheng Wang, Junjun Li Scatter plots of gas content versus shale composition are shown in Figure5. Shale gas content versus shale composition The scatter plots of TOC content versus gas content, and Langmuir adsorption capacity shows that when TOC is<2.0% the gas contents are higher than the Langmuir adsorption capacity of shale(Figure 6).", "mime": "application/pdf"}, {"id": "esrj-70581", "words": "5277", "extension": ".pdf", "flesch": "53", "author": "Ochoa Gutierrez, Luis Hern\u00e1n; Vargas Jim\u00e9nez, Carlos Alberto; Ni\u00f1o V\u00e1squez, Luis Fernando", "title": "Fast estimation of earthquake arrival azimuth using a single seismological station and machine learning techniques", "date": "2019", "keywords": "arrival; azimuth; data; earthquake; estimation; magnitude; research; station; time", "summary": "ABSTRACT Fast estimation of earthquake arrival azimuth using a single seismological station and machine learning techniques Estimaci\u00f3n r\u00e1pida del azimut de llegada de un terremoto utilizando registros de una sola estaci\u00f3n sismol\u00f3gica Descriptors \u2013 Input data set of the SVM In the first stage, parameters that have been previously used by other authors to earthquake magnitude estimation were calculated and employed as input variables or descriptors for the SVM of this research.", "mime": "application/pdf"}, {"id": "esrj-71090", "words": "7714", "extension": ".pdf", "flesch": "59", "author": "Ayd\u0131n, \u00d6mer L\u00fctf\u00fc; Bektas, Ozcan; B\u00fcy\u00fcksara\u00e7, Ayd\u0131n; Y\u0131lmaz, H\u00fcseyin", "title": "3D Modeling and Tectonic Interpretation of the Erzincan Basin (Turkey) using Potential Field Data", "date": "2019", "keywords": "anatolian; angle; basin; continuation; data; derivative; erzincan; erzincan basin; fault; figure; filter; gravity; gravity data; surface; tilt; turkey", "summary": "AF: Avc\u0131dagi Fault, EBF: Erzincan Basin Fault, HF: Heltepe Fault, NAFZ: AF: Avc\u0131dagi Fault, EBF: Erzincan Basin Fault, HF: Heltepe Fault, NAFZ:", "mime": "application/pdf"}, {"id": "esrj-71479", "words": "5661", "extension": ".pdf", "flesch": "49", "author": "Kemkina, Raisa A.; Kemkin, Igor' V.", "title": "Mineral composition of Albazinskoe deposit ores as an indicator of its belonging to the gold-rare metallic ore-formational type", "date": "2022", "keywords": "cobaltite; composition; deposit; figure; form; gold; grains; minerals; ore; ores; russian", "summary": "Excepting earlier known ore minerals represented by sulfides of iron, arsenic, lead, zinc, and copper, authors have established about two tens of ore minerals, new for this deposit. The elemental composition of ore minerals was determined by applying a scanning electron microscope EVO-50 XVP with an energy dispersive X-ray spectrometer INCA-350 at the laboratory of Micro- and Nano-Research of the Far Eastern Geological Institute of the Far Eastern Branch of the Russian Academy of Sciences.", "mime": "application/pdf"}, {"id": "esrj-71706", "words": "8751", "extension": ".pdf", "flesch": "51", "author": "Pacheco, Henry Antonio; M\u00e9ndez, Williams; Moro, Armando", "title": "Soil erosion risk zoning in the Ecuadorian coastal region using geo-technological tools", "date": "2019", "keywords": "areas; del; ecuador; erosion; erosion risk; erosive; land; low; manab\u00ed; map; ndvi; processes; province; rainfall; region; risk; soil; soil erosion; use; vegetation", "summary": "La activaci\u00f3n de fuertes procesos erosivos en las vertientes de las cuencas hidrogr\u00e1ficas de la provincia de Manab\u00ed, representa una seria problem\u00e1tica ambiental que se traduce en la p\u00e9rdida del valios\u00edsimo recurso suelo, con la consecuente disminuci\u00f3n en el rendimiento de la productividad agr\u00edcola, el incremento de \u00e1reas desprovistas de vegetaci\u00f3n, la disminuci\u00f3n de la calidad del agua, la intensificaci\u00f3n de las inundaciones, entre otras cosas. Los resultados indican la presencia de suelos con escasa o nula protecci\u00f3n vegetal, en \u00e1reas de pendientes elevadas, pluviosidad considerable y actividades agropecuarias extensivas, lo cual condiciona la fuerte acci\u00f3n de los procesos erosivos, con las consecuencias de bajo rendimiento en la producci\u00f3n agropecuaria, azolve y contaminaci\u00f3n de los cuerpos de agua con la consecuente disminuci\u00f3n de la calidad de vida en la poblaci\u00f3n, evidenciando la necesidad de implementar pol\u00edticas, estrategias y acciones, por parte de los Gobiernos Aut\u00f3nomos Descentralizados, orientadas a impulsar el fortalecimiento de capacidades institucionales y comunitarias que promuevan la sostenibilidad ambiental.", "mime": "application/pdf"}, {"id": "esrj-71879", "words": "3642", "extension": ".pdf", "flesch": "61", "author": "Ozdogan, Mehmet Volkan; Gonen, Alper", "title": "Determination of Distance Required to Ensure Stope and Footwall-drift Non-interaction Zone based on Geological Strength Index", "date": "2019", "keywords": "displacements; distance; drift; footwall; gsi; interaction; rock; stope; strength; zone", "summary": "Displacements around footwall drifts for various GSI values and various stope distances GSI Distance between Stope and Footwall Drift (m) Upper Drift (m) Bottom Drift (m) Left Wall ABSTRACT Keywords: Footwall drift, numerical analysis, underground stability.", "mime": "application/pdf"}, {"id": "esrj-72068", "words": "11029", "extension": ".pdf", "flesch": "53", "author": "Ozturk, Serkan; Ghassemi, Mohammad R. ; Sar\u0131, Mahmut ", "title": "A comparison of alternative curve fitting techniques for different earthquake fault parameters of Iranian earthquakes", "date": "2021", "keywords": "curve; data; earthquakes; faulting; faults; fitting; ghassemi; iranian; linear; method; parameters; regression; relationships; rupture; srl; surface", "summary": "ABSTRACT A comparison of alternative curve fitting techniques for different earthquake fault parameters of Iranian earthquakes Comparaci\u00f3n de t\u00e9cnicas de ajuste de curvas para diferentes par\u00e1metros de fallas en terremotos en Ir\u00e1n ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n4.72068 En este estudio, los autores se enfocaron en estimar las ecuaciones lineales \u00f3ptimas para los par\u00e1metros asociados con diferentes mecanismos de fallas de terremotos en Ir\u00e1n. Consequently, L1 Norm, L2 Norm, Robust and Orthogonal regressions were tested for Iranian earthquakes in order to provide newer and more suitable empirical relationships among different earthquake fault parameters.", "mime": "application/pdf"}, {"id": "esrj-72188", "words": "4618", "extension": ".pdf", "flesch": "61", "author": "Weihe, Ren; Yi, Guitian", "title": "Characteristics of time-transgressive Holocene Optimum in the East Asian monsoon region", "date": "2019", "keywords": "asian; doi; east; et al; holocene; monsoon; records; region; summer", "summary": "The paleoclimate records for 92 sites in East Asian monsoon region were evaluated, and the onset and termination time of the HO during the Holocene were identified. This indicates that both the EASM and the ISM might simultaneously strengthen and regress during Results and discussion Time-transgressive characteristics of the HO in East Asian monsoon regions No obvious trends of the HO evolution were found in the East Asian monsoon region, and the onset and termination ages of speleothem sites are also generally consistency (Fig. 2", "mime": "application/pdf"}, {"id": "esrj-72248", "words": "6606", "extension": ".pdf", "flesch": "47", "author": "Lu, Qingrui; Chen, Shijun; Chang, Yi; He, Chunfeng", "title": "Comparison between Numerical and Analytical Analysis of the Dynamic Behavior of Circular Tunnels", "date": "2018", "keywords": "analysis; bending; field; figure; lining; moment; numerical; response; results; shear; slip; solutions; strain; thrust; tunnel; wave", "summary": "For full-slip conditions, a significant discrepancy exists between numerical solutions and analytical solutions for the calculation of thrust, while for bending moments, the results are rather satisfactory. When the components of seismic waves produce motions parallel to the axis of the tunnel, alternating compression and tension will be induced, as shown in Figure 4.", "mime": "application/pdf"}, {"id": "esrj-72249", "words": "4903", "extension": ".pdf", "flesch": "56", "author": "Li, Yuanhui; Zhou, Rui", "title": "Analysis of Mechanical Characteristics and Instability Law of Inverse Fault under the Influence of Mining", "date": "2018", "keywords": "coal; distance; face; fault; fault zone; mining; rock; shear; stress; surface; working", "summary": "It is concluded that the fault zone stability was high, with increasing distances between the working face and fault zone. (3) Based on actual site conditions, rock burst was more likely to occur in the lanes approaching the fault zone, indicating that the spacing between the working surface and fault zone was an important factor affecting the occurrence of rock burst.", "mime": "application/pdf"}, {"id": "esrj-72250", "words": "5151", "extension": ".pdf", "flesch": "54", "author": "Fan, Cunhui; Qin, Qirong; Hu, Dongfeng; Wang, Xiaolei; Zhu, MengYue; Huang, Wei; Li, Yuxi; Ashraf, Muhammad Aqeel", "title": "Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin", "date": "2018", "keywords": "area; central; development; dimension; distribution; fault; formation; fractal; fracture; gas; reservoir; study; xujiahe; yuanba", "summary": "The results show the following: the seismic value of reflection fault fractal dimension of the Xujiahe Formation is 1.5284; the correlation coefficient R2 is bigger than 0.9901; the capacity dimension linear regression correlation coefficient of the fracture in core of the Xujiahe Formation is bigger than 0.98; the fractal dimension D can well reflect the fault and fracture development degree, as well as the complexity of the fracture system; it can quantitatively calculate the density of the fracture of the reservoir in the area; the areas of capacity dimension bigger than 1.45 are the fracture development zones in the Fault-Fold Belt of the central Yuanba area; the oil and gas enrichment degree is high; the areas with the fractal dimension value between 0.95 and 1.45 are the fracture relatively-developed zones; the fractal dimension with values smaller than 0.95 are the lack of fracture areas. The fractal dimension of regions predicted favorable for fracture development from the above two formulas shall be higher than 1.4.", "mime": "application/pdf"}, {"id": "esrj-72251", "words": "6881", "extension": ".pdf", "flesch": "53", "author": "Zhu, Haihua; Liu, Guangchen; Zhong, Dakang; Zhang, Tingshan; Lang, Jun; Yao, Jingli", "title": "Diagenetic controls on reservoir quality of tight sandstone: A case study of the Upper Triassic Yanchang formation Chang 7 sandstones, Ordos Basin, China", "date": "2018", "keywords": "basin; calcite; cement; chang; chlorite; detrital; districts; figure; minerals; ordos; pores; porosity; quartz; reservoir; sandstones", "summary": "Distribution of thin section porosity, primary porosity and dissolution porosity with the depth of Chang 7member sandstones, Ordos basin. Sandstone diagenesis: recent and ancient.", "mime": "application/pdf"}, {"id": "esrj-72414", "words": "5566", "extension": ".pdf", "flesch": "48", "author": "Liang, Qingshao; Tian, Jingchun; Wang, Feng; Zhang, Xiang", "title": "Soft-sediment Deformation Structures and Sand Body Architecture in the Chang 6 Oil Member of the Upper Triassic Yanchang Formation, Southwestern Ordos Basin, China", "date": "2019", "keywords": "area; basin; body; chang; member; oil; ordos; sand; seismic; ssd; ssd structures; structures", "summary": "SSD structure types Various SSD structures, related to paleo-seismic events and gravity slumps, are developed in the Chang 6 oil member of the Upper Triassic Yanchang Formation in the H-Q area of Ordos Basin. i) SSD structures driven by paleo-seismic events with delta front sand body (SD-SSD) and ii) SSD structures driven by paleo-seismic events with turbidites (formed by delta-front slumping and re-distribution due to seismic action) (ST-SSD).", "mime": "application/pdf"}, {"id": "esrj-72623", "words": "3276", "extension": ".pdf", "flesch": "55", "author": "Moreno Ceballo, Roberto; Gonz\u00e1lez Herrera, Ra\u00fal; Paz Tenorio, Jorge Antonio; Aguilar Carboney, Jorge Alfredo; del Carpio Penagos, Carlos Uriel", "title": "Effects of Sediment Thickness upon Seismic Amplification in the Urban Area of Chiapa de Corzo, Chiapas, Mexico", "date": "2019", "keywords": "area; chiapa; corzo; damage; del; earthquakes; salgado; sediment; thickness; urban", "summary": "ABSTRACT Effects of Sediment Thickness upon Seismic Amplification in the Urban Area of Chiapa de Corzo, Chiapas, Mexico Efectos del espesor de sedimentos en la amplificaci\u00f3n s\u00edsmica de la zona urbana de Chiapa de Corzo, Chiapas, M\u00e9xico ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v23n2.72623 Las variaciones locales del tipo de suelo y la topograf\u00eda en menor medida, determinan la amplificaci\u00f3n s\u00edsmica y han Effects of Sediment Thickness upon Seismic Amplification in the Urban Area of Chiapa de Corzo, Chiapas, Mexico.", "mime": "application/pdf"}, {"id": "esrj-73438", "words": "2853", "extension": ".pdf", "flesch": "52", "author": "Pazoki, Amir; Rashidi-Khabir, Reza; Jahanian, Reza; Pourbahaadini, Ali", "title": "Characterization of Band-E Narges magnetite iron ore for mineral processing", "date": "2018", "keywords": "content; floatation; grade; iron; micron; separation; sulfur", "summary": "Use of floatation on magnetic separation concentrate Since after three stages of magnetic separation, the sulfur content was 1.08%, the concentrate was subjecting to a next grounding with 147Characterization Of Band-E Narges Magnetite Iron Ore for Mineral Processing Table 2. Magnetic separation and flotation methods for upgrading magnetite iron ore were carried out in different experimental conditions with varied parameters.", "mime": "application/pdf"}, {"id": "esrj-74025", "words": "5562", "extension": ".pdf", "flesch": "58", "author": "Nazari Sarem, Mehdi; Vosoghi Abedini, Mansour; Dabiri, Rahim; Ansari, Mohammad Reza", "title": "Geochemistry and Petrogenesis of Basic Paleogene Volcanic Rocks in Alamut Region", "date": "2021", "keywords": "alamut; alborz; basalts; earth; elements; iran; magma; mantle; melting; region; rocks; volcanic", "summary": "Geochemical analysis of volcanic rocks The results on the major elements of volcanic rocks in the Alamut region show that these rocks include a series of basic volcanic rocks. Volcanic Tertiary Alamut is part of magmatism in the central Alborz-west sequence of volcanic rocks (including basalt, trachyandesite, and basaltic andesite with alkaline geochemical properties, with porphyritic texture, pyroclastic rocks, and volcanic breccia) directly above the units belongs to the Karaj Formation (Middle Eocene age).", "mime": "application/pdf"}, {"id": "esrj-74108", "words": "11588", "extension": ".pdf", "flesch": "59", "author": "L\u00e1zaro, Lu\u00eds Vilcapoma; L\u00f3pez Herrera, Mar\u00eda Elena; Pereyra, Patrizia; Fern\u00e1ndez, Daniel Palacios; P\u00e9rez, Bertin; Rojas, Jhonny; Sajo-Bohus, Laszlo", "title": "Measurement of radon in soils of Lima City - Peru during the period 2016-2017", "date": "2019", "keywords": "area; average; chill\u00f3n; city; concentrations; et al; gas; gas radon; hole; lima; lima city; measurements; period; radon; radon concentration; rivers; rocks; r\u00edmac; soil; soil gas; soil radon", "summary": "175Measurement of radon in soils of Lima City - Peru during the period 2016-2017 Results and discussion Comments on results of soil gas radon concentrations and on the measure- ment methodology The minimum and maximum values of soil gas radon concentration in the study area were 0.1 kBq/m3 and 64.3 kBq/m3, respectively, which show great variability of the data. Soil gas radon concentrations were even higher in areas closer to volcanic and less distant from rivers.", "mime": "application/pdf"}, {"id": "esrj-74167", "words": "7012", "extension": ".pdf", "flesch": "62", "author": "Zhang, Wei; Zhang, Weisheng; Zhang, Dongsheng; Qi, Dahong; He, Ziming", "title": "A Mechanical Analysis of Support Instability Risk along the Strike of Coalface in Thick Coal Seam with Large Dip Angle: A Case Study", "date": "2021", "keywords": "angle; coal; coalface; dip; journal; mining; roof; seam; strike; support; support stability; zhang", "summary": "(2) The influencing factors of support stability along the strike of the coalface with LDA and LMH include the following: technical parameters of the support itself (self-gravity, width and height, length of support beam and length of support base, setting load and working resistance of support), geological conditions of the coalface (the dip angle of the coal seam, the strike angle of the coalface, lithology of roof and floor, and support force provided by the coal wall to the side rack), as well as special situations occurring during mining (e.g. coalface cutting across a fault). Moreover, due to the different movement states of the roof, support, and floor in the LDAC and 103A mechanical analysis of support instability risk along the strike of coalface in thick coal seam with large dip angle: a case study underhand mining operation (Zhang & Cao, 2015), support stability usually decreases dramatically.", "mime": "application/pdf"}, {"id": "esrj-74390", "words": "7372", "extension": ".pdf", "flesch": "49", "author": "Chen, Xiaohui; Liu, Zhicheng; Liang, Xin; Zhang, Zhao; Zhan, Tingshan; Zhu, Haihua; Lang, Jun", "title": "The shale gas revolution in China\u2014problems and countermeasures", "date": "2018", "keywords": "china; development; energy; exploration; gas; gas development; gas exploration; industry; national; resources; shale; shale gas; states; united; water", "summary": "The enormous success of shale gas development and exploration has attracted considerable attention from governments and energy companies all over the world and set off a boom in exploration for shale gas. The policies of central government related to shale gas development are mainly regarding to the setting of production goals, calculation of government subsidies, administration of taxes and fees, handling of market access, mineral classification of shale gas, and publishing of the shale gas industry standard (Table 1).", "mime": "application/pdf"}, {"id": "esrj-74779", "words": "8440", "extension": ".pdf", "flesch": "55", "author": "Hernandez-Carrillo, Rodrigo; Beltran, Gloria", "title": "Updating the probability of failure of rock wedges", "date": "2019", "keywords": "analysis; dip; evidence; failure; function; information; input; model; probability; reliability; rock; safety; set; sets; slope; stability; wedge", "summary": "Input random sets on bedding plane friction angle Year Bedding plane friction angle (\u00ba) Input random sets on bedding dip and dip direction Year ID Bedding Dip direction (\u00b0) Dip (\u00b0)", "mime": "application/pdf"}, {"id": "esrj-74921", "words": "8897", "extension": ".pdf", "flesch": "58", "author": "Ozer, Caglar; Ozyazicioglu, Mehmet", "title": "The Local Earthquake Tomography of Erzurum (Turkey) Geothermal Area", "date": "2019", "keywords": "area; depth; earthquake; erzurum; et al; fault; geothermal; local; model; structure; study; tomography; turkey; velocity; wave; zone", "summary": "In this paper, three-dimensional Vp and Vp/Vs characteristics of Erzurum geothermal area were investigated down to 30 km by using 1685 well-located earthquakes with 29,894 arrival times, consisting of 17,298 P wave and 12,596 S wave arrivals. The Vp, Vs perturbation and the Vp/Vs ratio tomographic horizontal section results for Erzurum area and its surroundings.", "mime": "application/pdf"}, {"id": "esrj-75426", "words": "4609", "extension": ".pdf", "flesch": "50", "author": "Fan, Cunhui; Qin, Qirong; Liang, Feng; Fan, Zenghui; Li, Zhi", "title": "Fractures in Volcanic Reservoir: a case study of Zhongguai uplift in Northwestern Margin of Junggar Basin, China", "date": "2018", "keywords": "area; development; filling; fracture; gas; oil; permeability; reservoir; rock; stress; zhongguai; \u00b0 \u00b115", "summary": "In various stages of oil and gas field development, it holds that the dynamic changes of fracture permeability in different groups are separate from one to others due to the fracture permeability and seepage velocity. As such, the study of development periods and genetic mechanisms of tectonic fractures could throw useful information regarding the evaluation and development of that reservoir.", "mime": "application/pdf"}, {"id": "esrj-75821", "words": "8091", "extension": ".pdf", "flesch": "54", "author": "Habibi, Vahid; Ahmadi, Hassan; Jaffari, Mohammad; Moeini, Abolfazl", "title": "Prediction of land degradation by Machine Learning Methods", "date": "2021", "keywords": "anfis; ann; area; axon; data; degradation; desertification; doi; et al; groundwater; groundwater level; iran; journal; land; level; methods; model; network; plsr; sigmoid; study", "summary": "Groundwater water level prediction in Wadi EL Jezzy Catchment using ANN. ANN is an applicable estimation tool for groundwater levels in areas without information or inadequate observation points.", "mime": "application/pdf"}, {"id": "esrj-76187", "words": "7474", "extension": ".pdf", "flesch": "48", "author": "Wang, Zhongyu; Zhang, Huayong; He, Xing; Jiang, Qi; Xu, Weigang; Tian, Wang", "title": "Effects of vegetation height and relative submergence for rigid submerged vegetation on flow structure in open channel", "date": "2022", "keywords": "average; channel; depth; doi; effects; figure; flow; heights; research; submergence; vegetation; vegetation height; velocity; water; water depth", "summary": "Variations of average water depth at different locations regarding to vegetation heights and average relative submergences. 43Effects of vegetation height and relative submergence for rigid submerged vegetation on flow structure in open channel The findings of the research may improve the comprehensive understandings of the effects of vegetation heights and 45Effects of vegetation height and relative submergence for rigid submerged vegetation on flow structure in open channel relative submergences of rigid submerged vegetation in open channel and may give some guidance to the practices of river ecological engineering design and management.", "mime": "application/pdf"}, {"id": "esrj-76217", "words": "5763", "extension": ".pdf", "flesch": "50", "author": "Zahermand, Samad; Vafaeian, Mahmod; Bazyar, Mohammad Hosein", "title": "Analysis of the physical and chemical properties of soil contaminated with oily (petroleum) hydrocarbons.", "date": "2020", "keywords": "clay; compaction; contamination; density; fluid; increase; limit; moisture; particles; properties; soil; test; water", "summary": "It is higher in contaminated soils compared to non-contaminated ones. This could be the underlying reason for higher liquid and plastic limits in oil- contaminated soils compared to the non-contaminated ones (Estabragh et al., 2016; Kermani & Ebadi, 2012).", "mime": "application/pdf"}, {"id": "esrj-76468", "words": "9085", "extension": ".pdf", "flesch": "53", "author": "Khajevand, Reza; Fereidooni, Davood", "title": "The effects of water acidity and engineering properties on rock durability", "date": "2022", "keywords": "cycles; durability; durability index; durability test; engineering; id10; properties; rocks; samples; slake; slake durability; strength; test; values; water", "summary": "Yagiz et al. (2012) Carbonate rocks Effect of the slake durability cycles on the modulus of elasticity (E) and uniaxial compressive (UCS) strength of rocks Ten cycles (Id10) Natural water https://pubs.geoscienceworld.org/eeg/search-results?f_Authors=R+G.+BELL https://pubs.geoscienceworld.org/eeg/search-results?f_Authors=Jeffrey+R.+Keaton 7171The effects of water acidity and engineering properties on rock durability 9 Tasdemir et al. (2013) In previous researches, different rocks were subjected to two cycles of the slake-durability test, this doesn\u2019t exactly simulate the natural conditions to evaluate rock durability.", "mime": "application/pdf"}, {"id": "esrj-77206", "words": "7779", "extension": ".pdf", "flesch": "50", "author": "Tapia-Hern\u00e1ndez, Edgar; Reddy, Elizabeth A.; Oros-Aviles, Laura Josabeth", "title": "Earthquake predictions and scientific forecast: dangers and opportunities for a technical and anthropological perspective", "date": "2019", "keywords": "activity; disaster; doi; earthquake; gas; hazards; magnitude; predictions; public; radon; research; risk; social", "summary": "Earthquake predictions and scientific forecast: dangers and opportunities for a technical and anthropological perspective. DOI: https://doi.org/10.15446/esrj.v23n4.77206 Supporting earthquake risk management with clear seismic communication may necessitate encounters with various popular misapprehensions regarding earthquake prediction.", "mime": "application/pdf"}, {"id": "esrj-77361", "words": "4934", "extension": ".pdf", "flesch": "62", "author": "Chen, Cheng; Wang, Lei; Chen, Ruozhou; Xing, Fangliang; Chen, Jun", "title": "Temporal-spatial characteristics and path analysis of maritime cyclones in Guangdong coastal areas in the South China Sea", "date": "2018", "keywords": "china; city; coastal; cyclones; guangdong; landing; path; sea; south; years", "summary": "This study was conducted to analyze the maritime cyclone characteristics in Guangdong coast in the years of 1949 to 2016, including inter-annual variation, the intensity of tropical cyclones, generating location and time, and path direction. The strengths of the tropical cyclones were reduced from central Guangdong coast to the east and the west sides, and the section of Zhanjiang city to Shenzhen city was the most vulnerable to tropical cyclones.", "mime": "application/pdf"}, {"id": "esrj-77362", "words": "5764", "extension": ".pdf", "flesch": "60", "author": "Sun, Hui; Meng, Fanchang; Zhang, Zhihou; Gao, Cheng; Liu, Mingchen", "title": "High-precision Joint 2D Traveltime Calculation for Seismic Processing", "date": "2018", "keywords": "band; calculation; calculation method; fmm; grid; method; model; nodes; ray; sun; traveltime; traveltime calculation; wfc", "summary": "Joint traveltime calculation method greatly improves the calculation accuracy of the source\u2019s surrounding area and the calculation accuracy of FMM. Currently, traveltime calculation methods can mainly be divided into three kinds, including ray-based methods, finite difference methods, and new ray tracing methods based on graph processing techniques.", "mime": "application/pdf"}, {"id": "esrj-77379", "words": "3867", "extension": ".pdf", "flesch": "55", "author": "Li, Run; Jian, Wenbin; Kang, Rongtao", "title": "Study on Fatigue Life of Fractured Rock Under Constant Amplitude Cyclic Loading", "date": "2018", "keywords": "curve; fatigue; fatigue life; life; limit; loading; rock; specimens; stress; test", "summary": "S f 1 represents the normalized value of rock fatigue limit, and it is obtained according to the ratio between the fatigue limit and the static strength of rock. Under the same conditions, the specimen had a shorter fatigue life when being applied by higher upper limit stress; the rock of different types and strengths not only had different fatigue life, but also had the different sensitive degrees between the fatigue life and the upper limit stress; the fatigue life of specimens was significantly influenced due to different initial damages.", "mime": "application/pdf"}, {"id": "esrj-77380", "words": "3918", "extension": ".pdf", "flesch": "59", "author": "Wu, Jingfeng; Meng, Qi'an; Fu, Xiaofei; Ma, Yuling; Sun, Meifeng; Sun, Ning; Tan, Wancang", "title": "Study on the relationship between multi-stage strike-slip mechanism and basin evolution in Fangzheng fault depression", "date": "2018", "keywords": "basin; depression; evolution; fangzheng; fault; fault depression; slip; stage; strike; tan; zone", "summary": "Fangzheng fault depression from south to north seismic profile shows different fault depression structures (Fig. 2). Study on the relationship between multi-stage strike-slip mechanism and basin evolution in Fangzheng fault depression.", "mime": "application/pdf"}, {"id": "esrj-77670", "words": "10228", "extension": ".pdf", "flesch": "59", "author": "MV, Ninu Krishna; MV, Prasanna; H, Vijith", "title": "Trend characteristics of rainy days and evaporation at a tropical rainforest region in East Malaysia, Borneo", "date": "2020", "keywords": "analysis; change; characteristics; climate; data; days; et al; evaporation; kendall; limbang; linear; mann; non; rainfall; regression; slope; station; trend; ukong; year", "summary": "Along with rainfall trend analysis, the climatic parameters such as air temperature, evaporation and humidity have also been analyzed at various scales through statistical measurements (Santhe et al.,2012; Among the observations and research carried out to understand the effects of climate change, statistical analysis of rainfall trends has attained wider importance at a global as well as local scale (Yue & Wang, 2004;", "mime": "application/pdf"}, {"id": "esrj-77683", "words": "10229", "extension": ".pdf", "flesch": "57", "author": "Trujillo-Vela, Mario Germ\u00e1n; Escobar-Vargas, Jorge Alberto; Ramos-Ca\u00f1\u00f3n, Alfonso Mariano", "title": "A spectral multidomain penalty method solver for the numerical simulation of granular avalanches", "date": "2019", "keywords": "boundary; conditions; equations; error; flow; granular; hutter; mass; method; numerical; smpm; spectral; \ufffd \ufffd", "summary": "Often, the solution to these equations can be obtained by mean of numerical methods such as finite differences, finite volumes, and finite elements, known as low-order techniques. Riemann solvers and numerical methods for fluid dynamics: a practical introduction.", "mime": "application/pdf"}, {"id": "esrj-77810", "words": "9255", "extension": ".pdf", "flesch": "54", "author": "Calder\u00f3n-Chaparro, Rafael Andr\u00e9s; Vargas-Cuervo, German", "title": "Determination of Hydrothermal Prospects in Paipa Geothermal Region (Boyac\u00e1, Colombia) Using Remote Sensing and Field Data", "date": "2019", "keywords": "anomalies; area; colombia; data; field; figure; geothermal; hydrothermal; images; index; landsat; map; paipa; prospects; satellite; soil; surface; surface temperature; temperature; temperature anomalies; values", "summary": "A single-channel algorithm was applied to this band to determine surface temperature anomalies (Jim\u00e9nez- Mu\u00f1oz et al., 2009). Another relevant aspect of the application of the algorithms is obtaining surface temperature anomalies with higher temperature magnitudes, and the reduction in the size of the anomalies in comparison with the temperature anomalies obtained without the atmospheric and emissivity corrections (Temperature of brightness).", "mime": "application/pdf"}, {"id": "esrj-77869", "words": "11714", "extension": ".pdf", "flesch": "61", "author": "Patinha, Carla; Kasemodel, Mariana Consiglio; Ferreira da Silva, Eduardo Anselmo; Rodrigues, Val\u00e9ria Guimar\u00e3es; Marques, J\u00e9ssica Pelinsom", "title": "Adsorption of lead (Pb) in strongly weathered tropical soil (Ribeira Valley region - Brazil)", "date": "2019", "keywords": "adsorption; brazil; capacity; cec; clay; concentration; content; environmental; et al; langmuir; ribeira; soil; solution; surface; s\u00e3o; tropical", "summary": "Batch type procedures for estimating soil adsorption of chemicals. This PI value is not within the ideal range for soil liners.", "mime": "application/pdf"}, {"id": "esrj-78094", "words": "9455", "extension": ".pdf", "flesch": "63", "author": "Li, Jun; Chen, Ningsheng; Zhao, Yuandi; Liu, Mei; Wang, Weiyu", "title": "A catastrophic landslide triggered debris flow in China\u2019s Yigong: factors, dynamic processes, and tendency", "date": "2020", "keywords": "bh01; chen; china; cldf; debris; debris flow; earthquake; flow; gully; landslide; mass; method; processes; rock; sliding; surface; wang; yigong; zhamunong", "summary": "The initial and boundary conditions FLAC numerical simulation method based on the shear strength reduction for calculating future landslide magnitude using parameters from rock mechanics tests The Fast Lagrangian Analysis of Continua (FLAC) method is suitable for simulating landslide sliding surfaces, so we use this method to estimate the volume of future similar landslides to analyze the tendency of CLDFs. The rock masses of BH01 landslide was saturated under the long-term freeze- thaw and dry-wet cycle conditions.", "mime": "application/pdf"}, {"id": "esrj-78727", "words": "4225", "extension": ".pdf", "flesch": "53", "author": "Cui, Kai; Sheng, Hang", "title": "Effects of granular shape on shear modulus and damping ratio of gravel", "date": "2019", "keywords": "angular; confining; gravel; pressure; ratio; round; sample; shape; shear modulus; soil", "summary": "Experimental study of factors influencing dynamic shear modulus and damping ratio of dam inverted filler. Dynamic shear modulus of undisturbed soil under different consolidation ratios and its effects on surface ground motion.", "mime": "application/pdf"}, {"id": "esrj-78750", "words": "4497", "extension": ".pdf", "flesch": "48", "author": "Wang, Bo; Liu, Shengdong; Jin, Biao; Qiu, Wanyong", "title": "Fine Imaging by Using Advanced Detection of Reflected Waves in Underground Coal Mine", "date": "2019", "keywords": "detection; direction; figure; filtering; imaging; method; migration; polarization; time; tunnel; wave", "summary": "However, in the process of calculating eigenvalues and eigenvectors and setting filtering function, corresponding relations between XYZ coordinate axes and P, SH, SV directions are usually artificially, without considering the corresponding relationship between the principal polarization direction of real-time particle in each receiver and propagation direction of seismic wave, which makes the results of unclean separation of P- and S-waves in the roadway. Research and analysis of forward prediction technology using seismic reflection wave in tunnel and laneway in China.", "mime": "application/pdf"}, {"id": "esrj-78805", "words": "6936", "extension": ".pdf", "flesch": "52", "author": "Sun, Ke; Tang, Shuheng; Zhang, Songhang; Xi, Zhaodong; Li, Jun", "title": "The magma thermal field and the shallow-level gas accumulation of tight gas reservoirs in the middle-eastern parts of the Qinshui Basin", "date": "2019", "keywords": "basin; eastern; formation; gas; heating; heating water; hydrocarbon; magmatic; parts; qinshui; qinshui basin; rocks; source; stage; thermal; water", "summary": "In this study, the metal-non-metal mineral gas-water hydrothermal concept is used to analyze the movement channels of magmatic heating water. Further, the concept of fractures-faults-cracks microfissures hierarchical configuration of the movement channels of magmatic heating water is proposed.", "mime": "application/pdf"}, {"id": "esrj-78831", "words": "4544", "extension": ".pdf", "flesch": "48", "author": "Sun, Ning; Fu, Guang; Liu, lili; Wu, Jingfeng", "title": "Unconsolidated fault vertical sealing ability evaluation method and its application during Stationary phase", "date": "2019", "keywords": "displacement; fault; filling; fracture; gas; oil; pressure; rock; sealing; vertical", "summary": "By measuring the depth of solid buried rock and mud content in fault rock, this paper uses the empirical relationship between measured displacement pressure of surrounding rock and compacted burial depth and mud content to determine the displacement pressure and calculate the displacement pressure. This paper compares the relative magnitude of the displacement pressure of fault rock and the displacement pressure of the rock in the bottom reservoir, and studies the vertical closed oil and gas in the fault.", "mime": "application/pdf"}, {"id": "esrj-78880", "words": "5908", "extension": ".pdf", "flesch": "51", "author": "Negri, Cassio Vin\u00edcius Carletti; Segantine, Paulo Cesar Lima", "title": "Estimation of GPS L2 Signal Observables Using Multilayer Perceptron Artificial Neural Networks for Positional Accuracy Improvement", "date": "2020", "keywords": "ann; artificial; carrier; data; eesc; figure; gps; network; neural; observables; positioning; test; training", "summary": "Estimation of GPS L2 signal observables using Multilayer Perceptron Artificial Neural Network for positional accuracy improvement. ABSTRACT Estimation of GPS L2 signal observables using Multilayer Perceptron Artificial Neural Network for positional accuracy improvement Estimaci\u00f3n de los observables de se\u00f1al GPS L2 utilizando redes neuronales artificiales de perceptr\u00f3n multicapa para mejorar la precisi\u00f3n posicional ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n1.78880", "mime": "application/pdf"}, {"id": "esrj-78990", "words": "9853", "extension": ".pdf", "flesch": "58", "author": "Yang, Longwei; Wang, Wenpei; Zhang, Nan; Wei, Yunjie", "title": "Characteristics and Numerical Runout Modeling Analysis of the Xinmo Landslide in Sichuan, China", "date": "2020", "keywords": "accumulation; analysis; avalanche; body; china; debris; distance; figure; landslide; mass; model; movement; rock; sliding; source; volume; wang; xinmo landslide; zone", "summary": "Therefore, it is very necessary to study the stability of old landslides in populated areas, calculate the scope of disaster mitigation for old landslides, and take the corresponding measures to prevent similar disasters. Additionally, the scraping effect of the landslide was quantitatively analyzed and the scraping depth was calculated across a range of 3 m to 10 m during landslide movement.", "mime": "application/pdf"}, {"id": "esrj-79123", "words": "7328", "extension": ".pdf", "flesch": "59", "author": "Kurtulu\u015f, Cengiz; sertcelik, ibrahim; Sert\u00e7elik, Fadime; Livao\u011flu, Hamdullah; \u015ea\u015f, C\u00fcneyt", "title": "Investigation of Soil Characterization in Hatay Province in Turkey by Using Seismic Refraction, Multichannel Analysis of Surface Waves and Microtremor", "date": "2021", "keywords": "analysis; data; depth; earthquake; frequency; hatay; microtremor; motion; site; soil; stations; turkey; velocity; wave", "summary": "Shear wave velocity up to 30 m of the ground was detected with MASW analysis. Estimating shear wave velocity using acceleration data in Antakya (Turkey).", "mime": "application/pdf"}, {"id": "esrj-79152", "words": "5810", "extension": ".pdf", "flesch": "50", "author": "Barrera, Diana; Molano, Juan Carlos", "title": "Characterization of hydrothermal events associated with the occurrence of copper-molybdenum minerals in the El Chucho creek at Cerrito, Valle del Cauca-Colombia", "date": "2021", "keywords": "alteration; buga; colombia; data; figure; fluid; inclusions; porphyritic; quartz; temperature; type; vol", "summary": "Fluid inclusion types in quartz crystals at El Chucho creek. Computer programs for analysis of fluid inclusion data and for modelling bulk fluid properties.", "mime": "application/pdf"}, {"id": "esrj-79170", "words": "8398", "extension": ".pdf", "flesch": "53", "author": "Hincapie Portela, Brayam Arleth; Cort\u00e9s-Soto, Alexander; Bermudez, Mauricio A; Yepez, Santiago; Trujillo-Hern\u00e1ndez, Juan Sebasti\u00e1n; Salguero-Londo\u00f1o, Blanca Myriam; Grande, Sebasti\u00e1n", "title": "Coffee plantation soil characterization using a multi-method approach near the Volcano Nevado del Ruiz, Colombian Central Cordillera", "date": "2021", "keywords": "beatriz; carlos; coffee; estrella; farm; figure; goethite; hematite; illite; iron; minerals; msi; muscovite; oxides; practices; quartz; samples; san; soil; table; villa", "summary": "(e) Stem of the coffee plant, and (f) collected soil sample. The X-ray diffraction identified iron oxide mineral phases, as well as the recognition of other minerals such as feldspars, quartz, phyllosilicates, and carbonates.", "mime": "application/pdf"}, {"id": "esrj-79515", "words": "8901", "extension": ".pdf", "flesch": "55", "author": "Martinez, Amancay; Gallardo, Adrian; Giambiagi, Laura; Tobares, Laura", "title": "The Choiyoi Group in the Cord\u00f3n del Plata range, western Argentina: structure, petrography and geochemistry", "date": "2020", "keywords": "argentina; choiyoi; cord\u00f3n; del; faults; figure; giambiagi; group; mendoza; permian; plata; rocks; south; structures; triassic; volcanic; western; \u00d7 \u00d7", "summary": "Geolog\u00eda de la vertiente oriental del Cord\u00f3n del Plata, Cordillera Frontal de Mendoza. Evoluci\u00f3n tect\u00f3nica de la Argentina.", "mime": "application/pdf"}, {"id": "esrj-79537", "words": "7898", "extension": ".pdf", "flesch": "56", "author": "Li, Jingxian ; Yu, Xuexiang ; Chen, Deshu ; Fang, Xinjian ", "title": "Research on the establishment of a mining subsidence prediction model under thick loose layer and its parameter inversion method", "date": "2021", "keywords": "coal; error; face; gm parameters; icsa; layers; method; mining; mining subsidence; model; parameters; pim; subsidence; value; working", "summary": "W y W y S sin r y S r GM GM GM GM GM ( )= \u00d7 \u2212 \u00d7 +( )( ) + \u2212( )\uf8eb \uf8ed \uf8ec\uf8ec \uf8f6 \uf8f8 \uf8f7\uf8f7 0 1 1 2 1 sin \u03b8 \u03b1 \u03b1/ / ++ \uf8eb \uf8ed \uf8ec \uf8ec \uf8ec \uf8ec \uf8ec \uf8ec \uf8f6 \uf8f8 \uf8f7 \uf8f7 \uf8f7 \uf8f7 \uf8f7 \uf8f7 \u2212( )= \u00d7 \u2212 \u2212( )\u00d7 +( ) 1 0 1 2W y L W y D S sin sinGM GM( / )\u03b8 \u03b1 \u03b1 // ( / ) / The specific steps of calculating mining subsidence prediction parameters with the ICSA are shown in Figure 3.", "mime": "application/pdf"}, {"id": "esrj-79584", "words": "7762", "extension": ".pdf", "flesch": "51", "author": "Saito, Youlia Kamei; Viana, Lucas Jos\u00e9 Ferreira; Ferreira, \u00cdtalo Oliveira; Marques, Eduardo Antonio Gomes", "title": "Sedimentation in reservoirs. Case study: the reservoir of the S\u00e3o Bartolomeu stream, Vi\u00e7osa, Minas Gerais, Brazil", "date": "2021", "keywords": "area; average; brazil; data; elevation; ferreira; kriging; process; reservoir; sedimentation; study; survey; total; use; vi\u00e7osa; volume; water; watershed", "summary": "The construction planning and maintenance of a reservoir demand analysis of the sedimentation process in the area can be estimated through bathymetric surveys (Valent et al., 2019), which is completed by performing measurements of depth in relation to a position on the surface (IHO, 2005; Ferreira et al., 2015). Constants to calculate errors limits for depth accuracy on bathymetric surveys.", "mime": "application/pdf"}, {"id": "esrj-79728", "words": "5182", "extension": ".pdf", "flesch": "56", "author": "Viloria \u00c1vila, Tony Jes\u00fas; Pesantez, Adriana; V\u00e1zquez Silva, Efr\u00e9n; Delgado, Ernesto Manuel; Duque, Paola; Sajo-Bohus, Laszlo", "title": "Levels of radium-226 in the rainbow trout, macroinvertebrates-substrates and water adjacent to the mining concession Loma Larga, Azuay-Ecuador", "date": "2020", "keywords": "226ra; concentration; ecuador; irquis; levels; matrices; mining; portete; rainbow; river; sampling; trout; water", "summary": "La finalidad principal de este trabajo fue establecer una l\u00ednea base radio-ecol\u00f3gica; para ello se evaluaron los niveles de concentraci\u00f3n de 226Ra en la trucha arco\u00edris, en matrices macroinvertebrados-sustratos y el agua de los r\u00edos Irquis y Portete, ubicados en la provincia del Azuay, Ecuador. Water samples Collection of surface water samples Obtaining water samples was carried out by the immersion method, following the protocol established for the Pylon AB6 detector (Pylon Electronics Inc., 2015).", "mime": "application/pdf"}, {"id": "esrj-79957", "words": "5153", "extension": ".pdf", "flesch": "51", "author": "Xie, Jiatong; Qin, Qirong; Fan, Cunhui; Hu, Dongfeng; Li, Hu", "title": "The quantitative prediction of tectonic fractures of Longmaxi formation in Dingshan area, southeastern Sichuan Basin", "date": "2019", "keywords": "area; breaking; density; development; dingshan; energy; formation; fracture; longmaxi; method; prediction; rock; value", "summary": "(4) Binary method: The rock breaking value represents the possibility of tectonic fracture development, and the energy value represents the size of the ability for tectonic fractures to develop. Therefore, when predicting the tectonic fracture distribution in this study, the research outcomes of Ding (1998) and Xingui Zhou et al. were used to comprehensively consider these two methods\u2014the rock breaking method and the energy method\u2014and a \u201cbinary method\u201d was proposed (the extent of tectonic fracture development is jointly determined by two aspects\u2014the rock breaking rate and the strain energy density); the rock breaking rate represents the possibility of tectonic fracture development, and the strain energy density represents the size of the ability for tectonic fractures to develop.", "mime": "application/pdf"}, {"id": "esrj-80116", "words": "9589", "extension": ".pdf", "flesch": "40", "author": "Arenas, Maria Cristina; Pescador, Juan Pablo; Donado, Leonardo David; Saavedra, Edwin Yesid; Arboleda Obando, Pedro Felipe", "title": "Hydrogeological Modeling in Tropical Regions via FeFlow", "date": "2020", "keywords": "analysis; area; calibration; carrera; data; figure; flow; groundwater; https://doi.org/https; hydraulic; hydrology; inverse; journal; method; model; modeling; parameters; points; properties; results; values", "summary": "Novel approaches in sub-surface parameterisation to calibrate groundwater models. Additionally, this highlights the need for flow models (surface and underground) coupled on a regional scale due to most surface water models assume zero flow between topographic divisions.", "mime": "application/pdf"}, {"id": "esrj-80156", "words": "4246", "extension": ".pdf", "flesch": "56", "author": "Liu, Yaoning; Liu, Shucai; Li, Maofei; Liu, Xinming; Guo, Weihong", "title": "Influence of metal roadway supports on transient electromagnetic detection in mines", "date": "2021", "keywords": "electromagnetic; j j; metal; support; transient", "summary": "The presence of a thin metal layer slowed the transient field diffusion rate and hindered the overall diffusion of transient electromagnetic fields. Direct time-domain numerical analysis of transient electromagnetic fields.", "mime": "application/pdf"}, {"id": "esrj-80281", "words": "5048", "extension": ".pdf", "flesch": "46", "author": "Ren, Jintong; Yang, Wunian; Yang, Xin; Deng, Xiaoyu; Zhao, He; Wang, Fang; Wang, Lei", "title": "Optimization of Fusion Method for GF-2 Satellite Remote Sensing Images based on the Classification Effect", "date": "2019", "keywords": "algorithm; classification; classification algorithm; data; fusion; fusion images; gf-2; images; information; method; pca; sensing", "summary": "However, these research can only evaluate qualitatively or quantitatively the quality of fusion images; the adaptation of classification algorithm in fusion images is still needed to be analyzed. Moreover, different machines are based on object-oriented learning classification algorithm for classifying fusion images to study different fusion dispose methods, and classification algorithm to the precision influences and classification adaptation in urban areas GF-2 satellite remote sensing images.", "mime": "application/pdf"}, {"id": "esrj-80525", "words": "4053", "extension": ".pdf", "flesch": "46", "author": "Tan, Wancang; Meng, Yuanlin; Feng, Zihui; Meng, Qi'an; Li, Qiang; Wang, Xiandong; Li, Guorong; Li, Yaguang", "title": "Analysis of the Ordovician Carbonate Hydrothermal Process in Tadong Area, Xinjiang, China", "date": "2019", "keywords": "area; basin; characteristics; crystalline; dolomite; hydrothermal; megacryst; ordovician; tarim; value; \u03b418o", "summary": "Keywords: Tarim basin; Tadong area; carbonate; hydrothermal process; hydrothermal dolomite. Compared with the region and adjacent areas of Ordovician carbonate minerals \u03b418O values found that \u03b418O hydrothermal dolomite of Ordovician in Tadong was higher than that \u03b418O value of the non- reformed limestone in the region (-7.92~-6.48\u2030PDB, and the average value is 6.89\u2030PDB)(Figure 4).", "mime": "application/pdf"}, {"id": "esrj-80653", "words": "6869", "extension": ".pdf", "flesch": "51", "author": "Naranjo Sierra, Edwin; Alvaran Echeverri, Mauricio", "title": "Fluid inclusion study of shear zone hosted lode gold type deposits: El Bagre mining district, Antioquia-Colombia", "date": "2020", "keywords": "bagre; co2; deposits; district; figure; fluid; gold; inclusions; mining; nacl; naranjo; quartz; shear; stage; type", "summary": "These results are consistent with orogenic gold deposits type (Moritz, 2000; Ridley and Diamond, 2000; Groves et al., 2003; Goldfarb et al., 2005). The density values range between 1.05 to 1.07 g/cc for type IIA fluid inclusions and 1.00 to 1.03 g/cc for type IIB fluid inclusions.", "mime": "application/pdf"}, {"id": "esrj-80895", "words": "5656", "extension": ".pdf", "flesch": "38", "author": "Shang, Fuhua; Cao, Maojun ; Wang, Caizhi ", "title": "Application of Artificial Intelligence in Lithology Recognition of Petroleum Logging in Low Permeability Reservoirs", "date": "2021", "keywords": "artificial; data; figure; identification; intelligence; lithology; lithology identification; logging; method; parameters; permeability; recognition; reservoirs; rock; technology", "summary": "Lithology identification methods based on laser-induced breakdown spectroscopy technology. In this paper, the application of artificial intelligence technology to low permeability reservoir oil logging lithology identification is proposed.", "mime": "application/pdf"}, {"id": "esrj-81087", "words": "11231", "extension": ".pdf", "flesch": "49", "author": "Alcalde-Aparicio, Sara; Vidal-Bard\u00e1n, M.; Alonso-Herrero, E.", "title": "Mineralogy and geochemical signatures as indicators of differential weathering in natural soil profiles from the West Asturian-Leonese Zone (NW Iberia)", "date": "2022", "keywords": "al2o3; albite; alteration; chemical; chemical weathering; clay; et al; figure; indices; k2o; kaolinite; minerals; na2o; pia; processes; profiles; rocks; samples; soil; table; weathering", "summary": "Keywords: geochemical relations; soil profiles; differential weathering; Plagioclase Index of Alteration (PIA); albite acid hydrolysis; Mineralog\u00eda de arcillas y se\u00f1ales geoqu\u00edmicas como indicadores r\u00e1pidos de procesos de meteorizaci\u00f3n qu\u00edmica diferencial en una litosecuencia sil\u00edcea de perfiles de suelos Este trabajo presenta resultados mineral\u00f3gicos detallados junto con una caracterizaci\u00f3n geoqu\u00edmica para una secuencia de seis perfiles de suelos naturales. This fact has been explained by some authors for weathering soil profiles from the Iberian massif (Molina et al., 1990;", "mime": "application/pdf"}, {"id": "esrj-81615", "words": "8547", "extension": ".pdf", "flesch": "42", "author": "Shi, Chaoyang ; Zhang, Zhen ", "title": "A prediction method of regional water resources carrying capacity based on artificial neural network", "date": "2021", "keywords": "area; capacity; carrying; county; development; evaluation; gdp; index; layer; network; neural; output; prediction; rate; total; value; water consumption; water resources; zhaozhou", "summary": "According to the regional water resources quantity and utilization characteristics and evaluation emphasis, the evaluation index system of water resources carrying capacity is constructed to evaluate the importance and correlation of water resource carrying capacity. Keywords: Artificial neural network; BP neural network; Regional water resources; Water resources carrying capacity; Carrying capacity prediction; Palabras clave: Red neuronal artificial; Red neuronal BP; Recursos h\u00eddricos regionales; Capacidad de carga de recursos h\u00eddricos; Predicci\u00f3n de la capacidad de carga.", "mime": "application/pdf"}, {"id": "esrj-81669", "words": "7661", "extension": ".pdf", "flesch": "54", "author": "Shi, Xin; Di, Yuan", "title": "GPU Parallelization Nested Decomposition Method for Solving Large Linear Systems in Reservoir Numerical Simulation", "date": "2019", "keywords": "algorithm; block; color; cpr; grid; iterations; linear; matrix; method; mpnf; number; order; parallel; pressure; solution", "summary": "The preprocessor selection of CPR two stages is MPNF method. MPNF method for 2.5d unstructured grid The simulation of fractured reservoirs uses the Discrete Fracture Model (DFM).", "mime": "application/pdf"}, {"id": "esrj-81809", "words": "3567", "extension": ".pdf", "flesch": "43", "author": "Feng, Wei", "title": "Virtual Display System of Geological Body Based on Key Algorithms of Three-dimensional Modelling", "date": "2019", "keywords": "algorithm; body; data; display; information; modelling; ontology; system; technology; virtual", "summary": "However, due to the late start of three-dimensional geological modelling technology in China, the lack of geological data, and the complexity, fuzziness and uncertainty of geological spatial distribution and structure, it is difficult to study three- dimensional geological modelling and visualization (Zhao, Wang, & Martinez, 2018). It is necessary to obtain borehole data, distribution data of boreholes and strata, and the description of the global bottom, which lays a theoretical foundation for the follow-up study of geological virtual display system.", "mime": "application/pdf"}, {"id": "esrj-81911", "words": "4165", "extension": ".pdf", "flesch": "51", "author": "Luo, Penghui; Zhang, Shitao; Tian, Yimin; Ding, Fei; Xu, Zongming", "title": "Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China", "date": "2019", "keywords": "cement; cementation; characteristics; clay; earth; fig; forest; kaolinite; minerals; particles; soil; strength", "summary": "The growth of iron compounds (a) Compound aggregation under ETD probe (b) Compound aggregation under CBS probe (c) Gathered in layers under CBS probe 197Study on the Microscopic Characteristics of Ferruginous cement of Banguo Earth Forest in Yuan mou area, Yunnan, China (1) Clay minerals kaolinite, illite (2) Clay minerals kaolinite, illite and iron oxides (3) Spherical ferruginous cement (Continued) 198 Penghui Luo, Shitao Zhang, Yimin Tian, Fei Ding, Zongming Xu (2) The ferric cementation layer contained a large number of ferruginous cement, which were cemented with clay minerals (mainly kaolinite) to form a stable lamellar structure filling between the pores of the particles, greatly improving the strength of the ferric cementation layer. (3) The microscopic morphology of these ferruginous cement was spherical. Keywords: Earth forest, Ferruginous cement, SEM, EDS, Clay, Spherical iron compound.", "mime": "application/pdf"}, {"id": "esrj-81914", "words": "5862", "extension": ".pdf", "flesch": "54", "author": "Li, Bin; Xia, Qingsong; Peng, Jun; Yang, Suju; Xu, Qingqi; Zeng, Lei", "title": "Characteristics and dolomitization of the Lower Qiulitage Group reservoir in Bachu Uplift, Tarim Basin, China", "date": "2019", "keywords": "bachu; basin; cambrian; characteristics; dolomite; dolomitization; group; hydrothermal; pores; porosity; qiulitage; reservoir; tarim; uplift", "summary": "Based on the above research, it is believed that the Lower Qiulitage Group develops crystal dolomite reservoirs under the limited platform. The reservoir quality of dolomite reservoirs in the basement fault area is better.", "mime": "application/pdf"}, {"id": "esrj-81974", "words": "8533", "extension": ".pdf", "flesch": "54", "author": "Hussain, Yawar; Cardenas-Soto, Martin; Moreira, C\u00e9sar; Rodriguez-Rebolledo, Juan; Hamza, Omar; Prado, Renato; Martinez-Carvajal, Hernan; Dou, Jie", "title": "Variation in Rayleigh wave ellipticity as a possible indicator of earthflow mobility: a case study of Sobradinho landslide compared with pile load testing", "date": "2020", "keywords": "ambient; amplitude; case; curves; data; et al; figure; frequency; hussain; hvsr; landslide; load; noise; peak; pile; rayleigh; shear; soil; study; wave", "summary": "Sobradinho landslide The area of landslide is part of the Maranh\u00e3o River Basin. Ambient noise data acquisition at landslide area The experimental data was acquired using Sercel L-4A-3D short period seismometers having a natural frequency response of 2 Hz.", "mime": "application/pdf"}, {"id": "esrj-82748", "words": "9765", "extension": ".pdf", "flesch": "55", "author": "Habibkhah, Narges; Hasani, Hossein; Maghsoudi, Abbas; Honarmand, Mehdi", "title": "Spatial distribution of porphyry copper deposits in Dehaj terrain: Implications for exploration", "date": "2023", "keywords": "analysis; area; deposits; distribution; faults; fractal; fry; ite; mineralization; rit; rit e", "summary": "Delineation of mineralization zones in porphyry Cu deposits by fractal concentration\u2013volume modeling. J. Vol. 26, No. 4 (December, 2022): 321 - 333 O R E G EO LO G Y Investigation of the spatial distribution of porphyry copper deposits using fractal and fry analysis methods in Dehaj Area, Kerman: Implications for exploration Narges Habibkhah1*, Hossein Hasani1, Abbas Maghsoudi1, Mehdi Honarmand2 Amirkabir University of Technology, Iran University of Advanced Technology, Iran *Corresponding author: n.habibkhah@aut.ac.ir Manuscript Received: 09/10/2019 Accepted for Publication: 11/01/2023 How to cite this item: Habibkhah, N., Hasani, H., Maghsoudi, A., & Honarmand, M. (2022).", "mime": "application/pdf"}, {"id": "esrj-82815", "words": "10154", "extension": ".pdf", "flesch": "48", "author": "Su\u00e1rez Silgado, Sindy Sof\u00eda; Calderon Valdiviezo, Lucrecia Janneth; Mahecha Vanegas, Leandro Fernando", "title": "Application of life cycle assessment (LCA) methodology and economic evaluation for construction and demolition waste: a Colombian case study", "date": "2021", "keywords": "assessment; categories; cdw; companies; construction; cycle; demolition; demolition waste; earth; ibagu\u00e9; impacts; landfill; life; management; process; recycling; stone; study; waste; waste management", "summary": "Construction waste: an option for soil recovery (Residuos de la construcci\u00f3n: una opci\u00f3n para la recuperaci\u00f3n de suelos). Stone materials from construction waste.", "mime": "application/pdf"}, {"id": "esrj-82831", "words": "6985", "extension": ".pdf", "flesch": "59", "author": "Candeiro, Carlos Roberto; Brusatte, Stephen; Queiroz, Glayce; Carvalho, Adelino; Maia, D\u00e9bora; Dias, Tamires; Vidal, Luciano; Gomes, Musa Maria Nogueira ; Barros, Lucas Marques", "title": "Late Cretaceous Bauru Group biota from Southern Goi\u00e1s state, Brazil: history and fossil content", "date": "2021", "keywords": "bauru; candeiro; cretaceous; et al; formation; fossil; goi\u00e1s; goi\u00e1s state; group; indet; mar\u00edlia; state", "summary": "La regi\u00f3n del sur del estado de Goi\u00e1s, en el centro de Brasil, tiene un registro extenso e informativo de la biota f\u00f3sil. En este art\u00edculo, proporcionamos una s\u00edntesis actualizada de la biota del Cret\u00e1ceo del sur del estado de Goi\u00e1s, basada en el registro de plantas, gastropodos, tortugas, cocodrilianos, titanosaurios y dinosaurios ter\u00f3podos.", "mime": "application/pdf"}, {"id": "esrj-83186", "words": "11846", "extension": ".pdf", "flesch": "63", "author": "Ameri, Shahrzad; Solgi, Ali; Sorbi, Ali; Farrokhnia, Alireza", "title": "Identification of faults with seismic hazard potential based on morphotectonic analysis, Kerman city (Southeastern Iran)", "date": "2022", "keywords": "activity; area; basin; city; class; et al; fault; index; iran; kerman; reverse; slip; strike; study; tectonic; values", "summary": "The aim of this study is to identify active faults and the associated seismic hazard to Kerman city. Most of the basins of class 2 are located on the East side of the study area, the location of active faults of the region.", "mime": "application/pdf"}, {"id": "esrj-83340", "words": "7921", "extension": ".pdf", "flesch": "55", "author": "Dana, Kamal; Nezafati, Nima; Vossoughi Abedini, Mansuor", "title": "Study of involved fluids and geochemistry of rare earth elements of Aghbolagh copper deposit, in North Oshnavieh, West Azerbaijan Province of Iran", "date": "2020", "keywords": "aghbolagh; deposit; figure; fluid; formation; garnet; inclusions; liquid; mass; minerals; ore; phase; phase inclusions; quartz; salinity; sample; skarn; temperature", "summary": "The examination of fluid inclusions determined two main groups of fluids in this mineralization system. Fluid inclusions are the only source of information on the density of mineralized fluids.", "mime": "application/pdf"}, {"id": "esrj-84000", "words": "10363", "extension": ".pdf", "flesch": "51", "author": "Deng, Dejie; Wang, Changliu; Peng, Peihao", "title": "Basic Characteristics and Evolution of Geological Structures in the Eastern Margin of the Qinghai-Tibet Plateau", "date": "2019", "keywords": "area; block; characteristics; earthquake; eastern; fault; glacial; gravel; horizontal; layer; margin; movement; north; period; qinghai; river; sichuan; tibet plateau; velocity; vertical; wenchuan; western", "summary": "Among them, the most representative ones are the outlaw-shaped tectonic system, the extrusion or rotation mode of Sichuan-Yunnan rhombic block, the continental escape mode, the rotation movement mode of fault block and the lower crustal flow mode. Projection of horizontal motion velocity across fault zone along the direction of dominant velocity of GPS station is obtained.", "mime": "application/pdf"}, {"id": "esrj-84008", "words": "4695", "extension": ".pdf", "flesch": "50", "author": "Zhou, Hongsheng; Wang, Yunsheng; Shen, Tong; Feng, Qianqian", "title": "The Comprehensive Treatment of the Ancient Landslide Deformable Body in the Giant Deep Rock Bedding based on the FLAC Analysis Model", "date": "2019", "keywords": "analysis; body; condition; construction; deformation; engineering; landslide; model; sliding; slope; treatment; tunnel", "summary": "Deformation and cracks of tunnel landslide in Jimei 305The Comprehensive Treatment of the Ancient Landslide Deformable Body in the Giant Deep Rock Bedding based on the FLAC Analysis Model Furthermore, assuming that the velocity component of node was ui, then the constant strain triangular element was obtained on the basis of the Gauss\u2019s theorem: \u2202\u03c5 \u2202x A u n s For the supporting scheme of landslide deformation, it is necessary to analyze the sliding surface and the sliding bed characteristics of the landslide and deformable body, and calculate the stability and the thrust value of the landslide and the deformation body, so as to provide data basis for the choice of treatment plan.", "mime": "application/pdf"}, {"id": "esrj-84100", "words": "4409", "extension": ".pdf", "flesch": "38", "author": "Jian, Jinfeng; Chen, Huanzhen", "title": "Advance of research on the numerical simulation of sediment transport in the Yellow River estuary", "date": "2019", "keywords": "element; estuary; finite; method; model; numerical; river; sediment; sediment transport; simulation; transport; water", "summary": "Considering the influence of turbulence, tidal current, wave and the assumption of hydrostatic pressure distribution, By performing Reynolds average, wave period average and water depth average on the three- dimensional sediment transport model, a planar two-dimensional sediment transport model composed of hydrodynamic model (water flow continuous equation, water flow movement equation) and sediment transport model (sediment continuous equation, riverbed deformation equation) can be obtained (Yang, 1993; On the basis of referring to relevant literature and combining with our research work, this paper attempts to make a brief analysis and comment on the current situation of numerical simulation of sediment transport problem in estuaries, and put forward its own views and opinions on the future development, with a view to benefiting.", "mime": "application/pdf"}, {"id": "esrj-84113", "words": "6372", "extension": ".pdf", "flesch": "63", "author": "Pan, Xin; Guo, Ying; Liu, Ziyuan; Zhang, Zikai; Shi, Yuxiang", "title": "Impact of different standard lighting sources on red jadeite and color quality grading", "date": "2019", "keywords": "color; cwf; d65; d65 light; difference; fancy; grading; guo; jadeite; light; light source; ranges; red; samples; source; standard", "summary": "The light color of D65 light source distributes more uniformly, allowing red color of jadeite more objective and more similar to that under sunlight, which is suitable for the jadeite evaluation. Spectrum of D65 light source, CWF light source and A light source The color temperature of A light source (2856K) is lower than that of D65 light source (6504K), and its energy in the long-wave red zone is obviously higher than that in the short-wave blue-purple zone with overall light color of yellowish as a whole.", "mime": "application/pdf"}, {"id": "esrj-84276", "words": "11447", "extension": ".pdf", "flesch": "56", "author": "Raimondi, Isabela Monici; Rodrigues, Val\u00e9ria Guimar\u00e3es; Lima, Jacqueline Zanin; Marques, J\u00e9ssica Pelinsom; Vaz, Luiz Augusto Artimonti; Vieira, Eny Maria", "title": "Assessment of the use of tropical peats as local alternative materials for the adsorption of Pb, Zn and Cd: An equilibrium study", "date": "2021", "keywords": "adsorption; brazil; cd2; doi; et al; ions; isotherm; kg-1; langmuir; materials; metal; pb2; peat; peat c; peat la; removal; study; s\u00e3o; zn2", "summary": "org/10.1016/j.jhazmat.2008.06.129 Bencheikh-Lehocine, M. (1989) Zinc removal using peat adsorption. DOI: http:// dx.doi.org/10.1590/0001-3765201720160910 Frizzo, S. M. B., da Silva, M. C. M. & Foelkel, C. E. B. (1996).", "mime": "application/pdf"}, {"id": "esrj-84340", "words": "3168", "extension": ".pdf", "flesch": "49", "author": "Wang, Yang; Li, Jun; Wang, Xuben; Jian, Xingxiang", "title": "Inversion Technique of Physical Parameters Based on Regularization Extension Depth Constraint", "date": "2019", "keywords": "anomaly; continuation; depth; field; gravity; magnetic; model; regularization; source", "summary": "Magnetic source gravity anomaly of sphere model Figure 4. The principal curve of magnetic source gravity anomaly and its regularization downward extension fracture surface Regularization continuation depth constrained inversion of superimposed gravity and magnetic anomalies In order to carry out theoretical calculation and verification, a 201 \u00d7 201 mesh is designed in this paper.", "mime": "application/pdf"}, {"id": "esrj-84350", "words": "4406", "extension": ".pdf", "flesch": "44", "author": "Zhu, Danyao; Wan, Luhe; Gao, Wei", "title": "Fusion Method Evaluation and Classification Suitability Study of Wetland Satellite Imagery", "date": "2019", "keywords": "accuracy; classification; fusion; fusion image; image; information; nnd; spectral; wetland", "summary": "It can be seen from the table that the average gradient of GS fusion image is the largest, followed by PC fusion image, indicating that GS fusion image and PC fusion image have advantages in terms of sharpness. The information content of PC fusion image is the largest, followed by GS fusion image and NND fusion image.", "mime": "application/pdf"}, {"id": "esrj-84394", "words": "4417", "extension": ".pdf", "flesch": "59", "author": "He, Yunlan; Wang, Xikai; Sun, Hongjie; Xing, Zhenguo; Chong, Shan; Xu, Dongjing; Feng, Feisheng", "title": "Coal Seam Roof: Lithology and Influence on the Enrichment of Coalbed Methane", "date": "2019", "keywords": "coal; gas; impedance; methane; rock; roof; sandstone; seam; velocity; wave", "summary": "DOI: https://doi. org/10.15446/esrj.v23n4.84394 To identify the lithology of coal seam roof and explore the influence of these roofs on the enrichment of coalbed methane, low-frequency rock petrophysics experiments, seismic analyses and gas-bearing trend analyses were performed. Thus, highly compact areas of coal seam roof are favorable for the formation and preservation of coalbed methane.", "mime": "application/pdf"}, {"id": "esrj-84502", "words": "7981", "extension": ".pdf", "flesch": "58", "author": "Gong, Weidong", "title": "Paleo-tectonic Stress Field and Tectonic Evolution since the Mesozoic in the Eastern Mining Area of Pingdingshan", "date": "2019", "keywords": "china; coal; direction; eastern; evolution; fault; joint; mining area; north; period; pingdingshan; plate; shear; stress field; structure; tectonic; yanshanian", "summary": "According to the type of tectonic stress field formed by joints, they are divided into tension joints and shear joints (De Guidi et al., 2013; Mandl, 2005). The late Yanshanian Period 354 Weidong Gong Fi gu re 1 2. S ch em at ic d ia gr am o f t he ac tio n di re ct io n of p al eo -te ct on ic st re ss fi el d at ea ch m ea su rin g po in t i n th e e as te rn m in in g ar ea o f P in gd in gs ha n 355Paleo-tectonic Stress Field and Tectonic Evolution since the Mesozoic in the Eastern Mining Area of Pingdingshan tectonic movement evolution process of the North China plate and previous research data, it is believed that the period of tectonic stress field in this period should be Yanshan early-middle; The direction of the tectonic stress field in the third stage is near NE direction.", "mime": "application/pdf"}, {"id": "esrj-84601", "words": "5014", "extension": ".pdf", "flesch": "55", "author": "Martinez L\u00f3pez, Carolina; Rivera Paja, Albin Osvaldo; Menjivar Flores, Juan Carlos", "title": "Susceptibility to erosion risks in soils dedicated to the pineapple cultivation in the state of Valle del Cauca, Colombia", "date": "2021", "keywords": "area; cauca; colombia; dagua; del; erosion; erosivity; factor; rainfall; soil; valle; values", "summary": "Name Municipality Basin Coordinate Start date X Y Aguacatal-Montebello Cali Cali 1058549.999 877405.6117 Jun-30-1969 Buenos aires Yotoco Yotoco 1071854.129 916464.6178 May-31-1971 Costa rica Ginebra Sabaletas 1094047.494 907024.5997 Feb-28-1975 Dagua Dagua Dagua 1043265.57 895668.4842 Oct-31-1983 Dapa Yumbo Arroyohondo 1058101.811 885462.6364 May-31-1971 Diguita Dagua Anchicaya 1033515.712 882755.42 Mar-31-1971 Predicting soil erosion by water: a guide to conservation planning with the revised universal soil loss equation (RUSLE).", "mime": "application/pdf"}, {"id": "esrj-84631", "words": "9407", "extension": ".pdf", "flesch": "43", "author": "Mo, Jianghong ; Tian, Xinling ; Shen, Wei ", "title": "Tracing the source of heavy metal pollution in water sources of Tourist Attractions Based on GIS remote sensing", "date": "2021", "keywords": "attractions; coefficient; concentration; diffusion; direction; metal pollutants; metal pollution; metals; migration; pollutants; pollution source; sources; tourist; tracing; variation; water source", "summary": "Locate the source of heavy metal pollution in water sources In order to trace the sources of heavy metal pollution in water sources of scenic spots more quickly and conveniently, it is necessary to calibrate the data of heavy metal pollution sources in water sources of scenic spots on the basis of the compilation of watershed geographic information. Tracing of heavy metal sources and mobility in a soil depth profile via isotopic variation of Pb and Sr. Catena, 171, 440-449.", "mime": "application/pdf"}, {"id": "esrj-84838", "words": "6857", "extension": ".pdf", "flesch": "58", "author": "Wang, Wei; Yu, Caili; Zhao, Le; Xu, Shuang; Gao, Lei", "title": "Combining SEM and Mercury Intrusion Capillary Pressure in the characterization of pore-throat distribution in tight sandstone and its modification by diagenesis: A case study in the Yanchang Formation, Ordos Basin, China", "date": "2020", "keywords": "content; distribution; intrusion; mercury; pcp; pore; pressure; rcp; samples; sandstone; space; throat", "summary": "Pore throat characteristics of tight sandstone of Yanchang Formation in eastern Gansu, Ordos Basin. Pore size distribution derived by combining PCP and RCP results.", "mime": "application/pdf"}, {"id": "esrj-85098", "words": "6706", "extension": ".pdf", "flesch": "58", "author": "Lima, Adalto Gon\u00e7alves; Pelegrina, Marcos Aurelio; Pontarolo, Murilo", "title": "Fracture variability in basalts and its effect on river erosion: a case study in the Paran\u00e1 Volcanic Province", "date": "2021", "keywords": "area; axes; density; direction; erosion; figure; flow; fracture; joints; plucking; reach; river; study", "summary": "The N80\u201390E direction coincides with the major maximum of the bed fracture directions (Figure 5). As shown in Figures 3 and 4, there is a wide distribution of fracture directions in the study area.", "mime": "application/pdf"}, {"id": "esrj-85206", "words": "7680", "extension": ".pdf", "flesch": "46", "author": "Zhang, Qian", "title": "Study on Optimization Method of Spatial Structure Characteristics of Peak Forest Landform in Wulingyuan Scenic Area", "date": "2020", "keywords": "area; artificial; characteristics; development; forest landform; landform; landscape; meters; node; patch; patches; peak forest; rock; sandstone; sandstone peak; structure; study; vegetation; wulingyuan; wulingyuan peak", "summary": "The spatial pattern of peak forest landscape in Wulingyuan Scenic Area was analyzed by using various landscape indices. By using GIS and digital topographic analysis to study the basic features of sandstone peak forest landform, Wulingyuan peak forest landform and karst peak forest have great differences in lithological composition, as the weathering resistance is better than Cheltenham Badland landform; by using tree theory to analyze the features of Wulingyuan peak forest landform, according to area weight serialization of contour tree nodes, we can know the depression area.", "mime": "application/pdf"}, {"id": "esrj-85231", "words": "5490", "extension": ".pdf", "flesch": "57", "author": "Zhang, Hongzhou", "title": "Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area", "date": "2020", "keywords": "displacement; figure; geomembrane; interface; strength; stress; u p; u u; \uf8f4 \uf8f4", "summary": "The influence of landfill height on the maximum tensile stress of Geomembrane Conclusion Based on the softening model of interface strength between Geomembrane and clay, the equilibrium equation of Geomembrane force is established, and the analytical solution of tension stress and displacement of Geomembrane is obtained. Firstly, according to the internal force analysis of Geomembrane model, the basic equation of Geomembrane is obtained, and the equation is analyzed by finite difference numerical solution, so as to analyze the internal force of Geomembrane in a landfill.", "mime": "application/pdf"}, {"id": "esrj-85290", "words": "4512", "extension": ".pdf", "flesch": "51", "author": "Lv, Yiqing", "title": "Numerical Simulation and Model of Deformation Features of Destabilized Mining Slope Under Fault-Controlled Conditions", "date": "2020", "keywords": "area; deformation; direction; displacement; fault; figure; mining; slope", "summary": "Mechanism of slope deformation induced by underground mining. The lithology of Fengmaoding slope consists of soil and bedrock.", "mime": "application/pdf"}, {"id": "esrj-85366", "words": "3225", "extension": ".pdf", "flesch": "62", "author": "Jiang, Chanjun; Wang, Youxue; Zeng, Gaofu", "title": "Group Velocity Measurements of Earthquake Rayleigh Wave by S Transform and Comparison with MFT", "date": "2020", "keywords": "group; mft; rayleigh; transform; wave", "summary": "In this paper, S transform is introduced to measure group velocities of earthquake Rayleigh wave and is compared with the commonly used MFT. Inverse S transform is written as x t s f d e dfi ft( ) = ( ) \uf8ee \uf8f0 \uf8ef \uf8ef \uf8ef \uf8f9 \uf8fb \uf8fa \uf8fa \uf8fa ++ \u222b\u222b \u03c4 \u03c4 \u2212\u221e \u221e \u2212\u221e \u221e , 2\u03c0 (4) Comparison with MFT At present, MFT is the most commonly used method to measure group velocities of earthquake Rayleigh wave.", "mime": "application/pdf"}, {"id": "esrj-85397", "words": "4165", "extension": ".pdf", "flesch": "52", "author": "Li, Bin; Huang, Da", "title": "Complex Failure Simulation of Underinclined Shale Slope Based on Discrete Element Method", "date": "2020", "keywords": "buckling; deformation; dip; failure; figure; mass; point; rock; shale; slope; stage; toppling", "summary": "Validation of a distinct element model for toppling rock slopes. Simple methods to analyze buckling of rock slopes.", "mime": "application/pdf"}, {"id": "esrj-85482", "words": "8194", "extension": ".pdf", "flesch": "60", "author": "Rahimdel, Mohammad Javad", "title": "Fuzzy Approach for the Safety Risk Assessment in Dimension Stone Mining", "date": "2023", "keywords": "accidents; ahp; analysis; assessment; dimension; incidents; inference; method; mines; mining; process; risk; safety; stone; study; \ufffd \ufffd", "summary": "The fuzzy logic system In the fuzzification step, all risk factors and risk priority levels are converted to fuzzy numbers regarding the expert\u2019s judgment. Over the last few years, numerous studies have been done in the field of safety risk analysis in quarries.", "mime": "application/pdf"}, {"id": "esrj-85486", "words": "4032", "extension": ".pdf", "flesch": "49", "author": "Wu, Guopeng; Chen, Wenwu; Cui, Kai", "title": "The numerical simulation of Influence of Drying-wetting Cycles on the Deterioration Characteristics of Gypsum Rocks under Particle Flow Code", "date": "2020", "keywords": "absorption; characteristics; cycles; deterioration; gypsum; gypsum rocks; pore; rocks; water; water absorption", "summary": "Particle flow model of gypsum rocks When establishing the particle flow model of gypsum rock, because the macro-mechanical parameters of the model are affected by the number and size of gypsum rock particles, it is necessary to take into account the effect of RES (resolution) on the macro-mechanical parameters at the minimum scale of the model. Keywords: gypsum rock; dry-wet cycle; particle flow numerical simulation; water absorption; porosity.", "mime": "application/pdf"}, {"id": "esrj-85531", "words": "4259", "extension": ".pdf", "flesch": "53", "author": "Bi, Taifu", "title": "Optimal Allocation Algorithm of Geological and Ecological High-resolution Remote Sensing Monitoring Sampling Points", "date": "2020", "keywords": "algorithm; bing; candidate; detection; feature; image; resolution; sensing; technology", "summary": "The average running time of Selective algorithm for candidate extraction of remote sensing images in different scales Remote sensing image scale / pixel 500*500 800*800 1000*1000 1500*1500 Average processing time / s 2.7 7.6 14.3 29.8 Comparison and analysis of the effects of BING algorithm and IBING algorithm Figure 5 is the candidate effect diagram of extraction on high-resolution remote sensing images by BING algorithm and IBING algorithm. Similarly, the MABO value of IBING algorithm was 65.36%, while the DR/MABO value of BING algorithm was 63.21%, indicating that the quality of candidate boxes extracted from remote sensing images by the improved algorithm was higher.", "mime": "application/pdf"}, {"id": "esrj-86025", "words": "8383", "extension": ".pdf", "flesch": "46", "author": "Avenda\u00f1o, Gladys Marcela; Cruz, Luis Felipe; Cruz, Luis Enrique; Garcia, Mario", "title": "Thermal evolution of Los Cuervos formation in the southern area of the Cesar sub-basin (Colombia), based on geochemical and petrophysical data", "date": "2021", "keywords": "analysis; anh; basin; cerezos-1x; cesar; colombia; cuervos; data; eocene; figure; formation; geochemical; loma-2; los; los cerezos-1x; ro%; sub; wells", "summary": "ABSTRACT Thermal evolution of Los Cuervos formation in the southern area of the Cesar sub-basin (Colombia), based on geochemical and petrophysical data Evoluci\u00f3n termal de la formaci\u00f3n Los Cuervos, en el \u00e1rea sur de la subcuenca Cesar, con base en datos geoqu\u00edmicos y petrof\u00edsicos ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v25n2.86025 La complejidad tect\u00f3nica a la cual fue sometida la cuenca Cesar-Rancher\u00eda durante el Cenozoico gener\u00f3 cambios en la evoluci\u00f3n de su sistema petrol\u00edfero. Other authors such as Mesa and Rengifo (2011) pointed out that about 50 wells were drilled in the Cesar sub-basin and it was determined a petroleum system in the sub-basin consisting of source rocks: Lagunitas, Aguas Blancas, La Luna, Molino, and Los Cuervos formations; reservoir rocks: with fractured reservoirs of Lagunitas and Aguas Blancas formations; and seal rocks: represented by a thick mudstone sequence of the Molino Formation.", "mime": "application/pdf"}, {"id": "esrj-86211", "words": "5132", "extension": ".pdf", "flesch": "48", "author": "Xie, Haijun; Li, Jingrui; Li, Zhiqiang; Li, Sheng", "title": "Analysis of the influence characteristics and correction effect of the mine direct current method in advance detection of roadway cavities", "date": "2023", "keywords": "cavity; coal; detection; electric; figure; influence; method; resistivity; results; roadway", "summary": "(Zhou et al., 2022) proposed a \u201ctriangular cone\u201d type DC advanced detection three-dimensional observation system, which solves the problem that the traditional DC advanced detection method cannot determine the specific location of the target, avoids the existing obstacles in the current traditional tunnel DC advanced detection, and provides a new solution for advanced detection. Thus, the possibility of applying COMSOL Multiphysics software in forward simulations for advanced DC detection in mine roadways was verified.", "mime": "application/pdf"}, {"id": "esrj-86525", "words": "12052", "extension": ".pdf", "flesch": "63", "author": "Bekin, Ekrem; Ozcep, Ferhat", "title": "A comparative soil liquefaction analysis with a Matlab\u00ae based algorithm: soiLique ", "date": "2021", "keywords": "analysis; crr; data; factor; figure; liquefaction; matlab; ozcep; results; settlement; soilengineering; soilique; spt; study; table; values", "summary": "CPT and SPT based liquefaction triggering procedures. SoiLique results table for BH76.", "mime": "application/pdf"}, {"id": "esrj-86563", "words": "6016", "extension": ".pdf", "flesch": "56", "author": "Hartwig, Marcos Eduardo; de Lima, Leandro Ribes; Perissin, Daniele", "title": "IW Sentinel-1 satellite scenes for the investigation of mine slope stability: experiences from the Riacho dos Machados gold mine (Brazil)", "date": "2021", "keywords": "data; deformation; displacements; interferometry; mining; radar; sar; scenes; sentinel-1; slope; surface", "summary": "Moreover, deformation maps based on IW Sentinel-1 SAR scenes as presented in this study may show a highly heterogeneous PS distribution in space. 98 Marcos Eduardo Hartwig, Leandro Ribes de Lima, Daniele Perissin 3) Deformation maps based on IW Sentinel-1 SAR scenes should be combined with data derived from other monitoring methods since PS coverage is heterogeneous; 4)", "mime": "application/pdf"}, {"id": "esrj-87003", "words": "6720", "extension": ".pdf", "flesch": "55", "author": "Tunalioglu, Nursu; Altuntas, Cemali", "title": "An experimental test for detecting effective reflector height with GPS SNR data", "date": "2022", "keywords": "chc; data; elevation; elk1; elk2; gps; height; larson; multipath; reflector; satellite; signal; snow; snr; topcon", "summary": "The behavior of the signals of the GNSS satellites, which acts as high-flying fixed points at 15An experimental test for detecting effective reflector height with GPS SNR data an average altitude of 20200 km, is influenced during the propagation in the various layers of the atmosphere (delay in the signals in the ionosphere and troposphere). To detect the effective reflector heights on the site using GPS SNR data, a decrement as 10 cm assuming a vertical displacement occurred as an effect of changing the vertical distance was applied to both reflectors established on the stations.", "mime": "application/pdf"}, {"id": "esrj-87080", "words": "8680", "extension": ".pdf", "flesch": "62", "author": "\u00d6ver, Semir; \u00d6zden, S\u00fcha; Kalkan Ertan, Esra; Turhan, Fatih; Co\u015fkun, Zeynep; P\u0131nar, Ali", "title": "20 July 2017 Bodrum-Kos Earthquake (Mw:6.6) in southwestern Anatolia, Turkey", "date": "2021", "keywords": "bodrum; earthquake; et al; fault; focal; gulf; g\u00f6kova; inversion; july; kos; mechanisms; normal; slip; stress; study; turkey", "summary": "Source modeling using strong-motion waveforms: toward automated determination of earthquake fault planes and moment- release distributions. In general, a collection of seismic event focal mechanisms leads to a well-defined assessment of the regional or local stress state that is consistent with the geologically determined stress state: that is, the stress state resulting from inversions of striae measured on fault planes (e.g., Sebrier et al., 1988; Mercier et al., 1991, 1992; Bellier and Zoback, 1995; Bellier et al., 1997; \u00d6ver et al., 2010).", "mime": "application/pdf"}, {"id": "esrj-87228", "words": "3081", "extension": ".pdf", "flesch": "57", "author": "Wang, Jianmin; Xie, Dongping", "title": "GPS elevation fitting study based on ternary polynomial regression", "date": "2020", "keywords": "elevation; fitting; gps; height; method; point; regression", "summary": "The traditional methods include weighted average method, plane fitting method, quadratic polynomial surface fitting method, moving quadratic polynomial surface fitting method and cubic polynomial surface fitting method, and the new models include neural network fitting method, support vector machine fitting method and curve cloud model fitting method (Zhang et al., 2015; At present, through the research of some scholars, the methods of fitting GPS elevation data can be roughly divided into two categories.", "mime": "application/pdf"}, {"id": "esrj-87248", "words": "8919", "extension": ".pdf", "flesch": "60", "author": "Liu, Rui", "title": "Research on Control Method of Pollutant Total Amount of Water Quality based on Fuzzy Mathematics", "date": "2020", "keywords": "area; control; discharge; evaluation; membership; model; pollutant; pollution; sewage; total; water; water quality; \uf8fa \uf8fa", "summary": "The work plays a key role in establishing the input response relationship between pollution sources and the target of water quality control. Confirming the target of water quality control The main purpose is to determine the target of water quality control of the functional areas in the upstream sewage control area and downstream transition area.", "mime": "application/pdf"}, {"id": "esrj-87255", "words": "13351", "extension": ".pdf", "flesch": "63", "author": "Andrade-Vel\u00e1zquez, Mercedes; Medrano P\u00e9rez, Ojilve Ram\u00f3n", "title": "Historical precipitation patterns in the South-Southeast region of Mexico and future projections", "date": "2021", "keywords": "change; climate; climate change; del; doi; et al; events; future; mexico; periods; points; precipitation; rcp; region; scenarios; south; southeast; spi-12; study; usumacinta; water; wet", "summary": "M\u00e9ndez-Gonz\u00e1lez, J., N\u00e1var-Ch\u00e1idez, J. J., & Gonz\u00e1lez-Ontiveros, V. (2008). v25n1.87255 This study analyzed climate change scenarios and their potential impact on water availability for the South-Southeast region (SSR) of Mexico.", "mime": "application/pdf"}, {"id": "esrj-87364", "words": "5848", "extension": ".pdf", "flesch": "67", "author": "Tang, Jinhui; Lou, Feng", "title": "LA-ICP-MS Zircon U-Pb dating of Early Jurassic granite basement in Chagan Area of the Northest Guangdong and its geological implications", "date": "2020", "keywords": "age; basin; dating; early; granite; icp; jurassic; ratio; zircon", "summary": "Again, SHRIMP zircon U-Pb dating of granite (1196\u00b12Ma)) and gabbro (1195\u00b11Ma) in the intrusion proves that magmatic activity also existed in the early Jurassic in northern Guangdong (Yu et al., 2009), which is also the earliest granite age of Yanshanian period up to now. LA-ICP-MS Zircon U-Pb dating of Early Jurassic granite basement in Chagan Area of the Northeast Guangdong and its geological implications.", "mime": "application/pdf"}, {"id": "esrj-87441", "words": "7045", "extension": ".pdf", "flesch": "48", "author": "Shanshan, Jia; Yanqing, Zhou", "title": "Ecological Compensation Method for Soil Polluted by Heavy Metals Based on Internet of Things", "date": "2020", "keywords": "area; compensation; data; ecological; forest; hardware; internet; metals; method; operating; pollution; soil; system; things", "summary": "This process provided the basis for the ecological compensation standard of soil heavy metal pollution area. The standard of soil compensation and the amount of soil added in the study area are shown in Table 6.", "mime": "application/pdf"}, {"id": "esrj-87710", "words": "6143", "extension": ".pdf", "flesch": "57", "author": "Cao, Yuhong; Liu, Meiyun; Cao, Yuandan; Chen, Chen; Zhang, Dapeng", "title": "Change Pattern and Driving Mechanism of Construction Land in China\u2019s Undertaking Industrial Transfer Demonstration Area: Taking the Wanjiang City Belt along the Yangtze River as an Example", "date": "2020", "keywords": "area; belt; change; city; construction; construction land; county; development; district; expansion; industrial; land; period; urban; use; wanjiang", "summary": "(3) The driving factors for the shift in construction land area include natural and social factors. Judging from the change rate of construction land area, other construction land is higher than the other two categories from 1995 to 2015.", "mime": "application/pdf"}, {"id": "esrj-87920", "words": "6002", "extension": ".pdf", "flesch": "47", "author": "Liu, Bin; Jiang, Xiugen", "title": "Consolidation and Deformation Characteristics of Soft Rock Foundation in Hydrological Wetland Environment", "date": "2020", "keywords": "consolidation; deformation; embankment; figure; foundation; hydrological; pressure; rock; rock foundation; settlement; soil; variation; water; water pressure; wetland", "summary": "The negative temperature has a certain influence on the consolidation settlement of soft rock foundation, which is mainly manifested in the difference between the settlement process of the central separation zone and the roadbed soft soil foundation. The research results can provide a reference for the study, calculation, and design of the consolidation and deformation of soft rock foundation in a hydrological wetland.", "mime": "application/pdf"}, {"id": "esrj-87932", "words": "4101", "extension": ".pdf", "flesch": "53", "author": "Wang, Suling; Wang, Xuefei; Chen, Minzhan; Xie, Wenqi; Zhang, Ziheng; Yang, Lei", "title": "Shear Damage Mechanism and Early Warning Study of Shale Standard Layer Casing", "date": "2020", "keywords": "casing; casing damage; damage; data; deformation; layer; model; plastic; strain; \u22c5 \u22c5", "summary": "The simulation results are compared with actual logging results of Daqing Oilfield, the rationality of the numerical model is verified and a simulation method of standard casing damage is proposed. Three-level orthogonal numerical simulation experiments were carried out for the five factors affecting casing damage.", "mime": "application/pdf"}, {"id": "esrj-87956", "words": "6746", "extension": ".pdf", "flesch": "47", "author": "Xu, Aimei", "title": "Remote Monitoring System of Geological Exploration in Lava Area Based on GPS", "date": "2020", "keywords": "analysis; data; error; exploration; gps; lava area; module; monitoring; monitoring data; monitoring system; reliability; survey; system; technology; value", "summary": "Where, 1 1\u2264 \u2264 ( )V n f x, , , f (x) is the distribution density function of the reliability of remote monitoring data for geological exploration in the lava area. Considering that \uf06c is bigger in the monitoring data sequence with gross errors, \uf06c is taken as double- difference variance in the processing of remote monitoring data of geological exploration in the lava area.", "mime": "application/pdf"}, {"id": "esrj-88686", "words": "8924", "extension": ".pdf", "flesch": "57", "author": "Mirza, Tola Ahmed; Kalaitzidis, Stavros P.; Fatah, Sardar S. ; Tsiotou, Sophia ", "title": "Petrographic and geochemical features of Gimo marble, Gole area, Kurdistan Region, Iraq: constraints on its protolith's origin and depositional environment", "date": "2021", "keywords": "area; calcite; earth; elements; fig; gimo; gimo marble; group; iraq; journal; marble; ppm; protolith; ree; samples", "summary": "Field images and photomicrographs of Gimo marble samples. Major oxide contents (wt.%) of Gimo marble samples (L.D.: Limits of Detection in %; LOI: loss on ignition, nd: not detected).", "mime": "application/pdf"}, {"id": "esrj-89293", "words": "7227", "extension": ".pdf", "flesch": "49", "author": "Alarc\u00f3n Olave, Helmer Fernando; Herrera Otero, Edwar Hernando", "title": "Petrophysical properties of bypassed Cenozoic clastic reservoirs in the Cesar sub-basin, Colombia", "date": "2021", "keywords": "area; basin; cenozoic; cesar; colombia; figure; formation; hydrocarbon; log; loma; los; porosity; reservoir; rock; sandstones; sub; units; wells", "summary": "Aunque algunos investigadores se han centrado en el entendimiento de la evoluci\u00f3n tect\u00f3nica de la cuenca, estratigraf\u00eda y potencial de generaci\u00f3n de hidrocarburos, los trabajos en busca de la caracterizaci\u00f3n de rocas reservorio solo se han llevado a cabo en formaciones Cret\u00e1cicas, consideradas el principal objetivo reservorio, sin hallazgos importantes. This agreement included the project \u201cCertificaci\u00f3n de Estratigraf\u00eda F\u00edsica y de la", "mime": "application/pdf"}, {"id": "esrj-89450", "words": "8298", "extension": ".pdf", "flesch": "36", "author": "Li, Jing; Cai, Zhongyuan; Duan, Lianru", "title": "Spatial Distribution Characteristics and Optimum Layout of Urban and Rural Areas in Different Geomorphological Types", "date": "2020", "keywords": "areas; basin; characteristics; county; development; distribution; distribution characteristics; elevation; environment; guangnan; jinghe; jinghe river; karst; landform; loess; plateau; river; river basin; settlements; spatial; structure; town", "summary": "Acknowledgments This work is supported by National Natural Science Foundation of China, Study on the green construction of rural settlement units in northwest China (51678481); Shaanxi provincial education department special research project (17JK0460); Xi\u2019an university of architecture and technology, 2019 special research fund for new urbanization, (general items); Xi\u2019an Polytechnic University, the project of General project of philosophy and social science (2019ZXSK02). Traffic trunk lines often become the guide of settlement development and evolution.", "mime": "application/pdf"}, {"id": "esrj-89468", "words": "7402", "extension": ".pdf", "flesch": "45", "author": "Yang, Jiqiang; Wang, Xing", "title": "Eruption Cycle of Volcanic Rocks Based on Virtual Reality Technology", "date": "2020", "keywords": "area; characteristics; cycle; data; depression; energy; eruption; eruption cycle; facies; fault; period; phase; rocks; study; virtual; xujiaweizi", "summary": "According to the three dimensional reconstruction data of dynamic scenes in the study area, combined with the research steps of volcanic eruption cycle and volcanic eruption cycle stages, the lithology, transport characteristics and lithofacies periodic changes of volcanic rocks in the study area were analyzed, and the results of the eruption cycle of volcanic rocks in the study area were obtained. The lateral correlation of volcanic eruption cycles can be achieved.", "mime": "application/pdf"}, {"id": "esrj-89513", "words": "7844", "extension": ".pdf", "flesch": "47", "author": "Hou, Jikun; Luo, Xingqi; Zhang, Lei", "title": "Establishment of Evaluation Model for Shallow Geothermal Energy Resource Development Potential Based on Characteristic of Geotemperature", "date": "2020", "keywords": "area; development; energy; evaluation; geothermal; ground source; ground temperature; groundwater; groundwater source; heat pump; km2; potential; pump system; source heat; suitability; system; temperature; utilization", "summary": "Suitability zoning of groundwater ground source heat pump in Weinan City From the charts, we can see that the suitability of groundwater source heat pumps is obviously different due to the difference of hydrogeological characteristics. Heat Exchange Power and Potential of Groundwater Ground Source Heat Pump In order to study the validity of calculation and evaluation for the heat-exchange power and potential of groundwater ground source heat pumps in Weinan City, it is necessary to carry out practical analysis.", "mime": "application/pdf"}, {"id": "esrj-89652", "words": "7946", "extension": ".pdf", "flesch": "61", "author": "Muzio, Rossana; Martino, Natalia; Peel, Elena", "title": "Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)", "date": "2021", "keywords": "alkaline; craton; dykes; et al; figure; lamprophyres; mantle; montevideo; petrology; plata; ppm; rocks; south; uruguay", "summary": "Estos diques presentan tendencias estructurales N75\u00ba-85\u00ba con buzamientos verticales a subverticales y recortan a unidades metam\u00f3rficas Paleoproterozoicas de 2.1 Ga del crat\u00f3n del Rio de la Plata. La estructura geol\u00f3gica de los alrededores de Montevideo.", "mime": "application/pdf"}, {"id": "esrj-89750", "words": "5851", "extension": ".pdf", "flesch": "48", "author": "Liang, Shujun; Cheng, Jing; Zhang, Jianwei", "title": "Maximum Likelihood Classification of Soil Remote Sensing Image Based on Deep Learning", "date": "2020", "keywords": "category; classification; data; figure; image; layer; learning; likelihood; method; network; sensing; soil; step; value", "summary": "Based on the principle of maximum likelihood method, the process of soil remote sensing image classification is as follows: Current soil remote sensing image classification methods based on deep learning and maximum likelihood estimation are challenging to meet the actual needs.", "mime": "application/pdf"}, {"id": "esrj-89819", "words": "5187", "extension": ".pdf", "flesch": "54", "author": "G\u00f6kda\u015f, \u00d6mer; \u00d6zl\u00fcdemir, Mustafa Tevfik", "title": "Effects of the Continuously Operating Reference Station (CORS) network on the accuracy, precision, and Time to Fix Ambiguity (TTFA) performance", "date": "2022", "keywords": "accuracy; cors; cors network; figure; iski; network; pasa; software; solution; station; ttfa; vrs", "summary": "In addition to CORS-TR, local CORS networks such as ISKI CORS network have been put into service in Turkey. Acknowledgements The authors would like to thank the Istanbul Water and Sewerage Administration for providing full access to ISKI CORS network data and Topnet Live software.", "mime": "application/pdf"}, {"id": "esrj-90111", "words": "4962", "extension": ".pdf", "flesch": "44", "author": "Li, Jingxian; Yu, Xuexiang; Liang, Ya", "title": "A prediction model of mining subsidence in thick loose layer based on probability integral model", "date": "2020", "keywords": "coal; influence; integral; method; mining; model; probability; radius; subsidence; surface", "summary": "A prediction model of mining subsidence in thick loose layer based on probability integral model. ABSTRACT A prediction model of mining subsidence in thick loose layer based on probability integral model Modelo de predicci\u00f3n de subsidencia en minas para una capa gruesa e inestable con base en el modelo integral de probabilidad ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n3.90111 El m\u00e9todo integral de probabilidad es el modelo de predicci\u00f3n de subsidencia en minas m\u00e1s utilizado, pero solo es aplicable a las condiciones geol\u00f3gicas ordinarias de la miner\u00eda.", "mime": "application/pdf"}, {"id": "esrj-90123", "words": "7727", "extension": ".pdf", "flesch": "59", "author": "Ma, Fei; Sui, Lichun", "title": "Investigation on Mining Subsidence Based on Sentinel-1A Data by SBAS-InSAR technology\u2014Case Study of Ningdong Coalfield, China", "date": "2020", "keywords": "area; china; coalfield; data; deformation; gps; insar; mar; mining; mining area; mining subsidence; monitoring; ningdong; sbas; series; subsidence; technology; time", "summary": "A model for extracting large deformation mining subsidence using D-InSAR technique and probability integral method. The yellow lines are boundaries of mining areas.", "mime": "application/pdf"}, {"id": "esrj-90210", "words": "14382", "extension": ".pdf", "flesch": "53", "author": "Romero Ord\u00f3\u00f1ez, Fernando Hel\u00ed; Gonz\u00e1lez-Dur\u00e1n, Andr\u00e9s Felipe; Garc\u00eda-Toloza, Javier; Rotlewicz Cohen, Jimmy; Cede\u00f1o Ochoa, Carlos Julio; Alvarado Gonz\u00e1lez, Holman Rolando; Angarita Sarmiento, Luis Gabriel", "title": "Mineralogy and Fluid Inclusions of the Cunas Emerald Mine, Marip\u00ed, Boyac\u00e1, Colombia", "date": "2021", "keywords": "bd l; calcite; cede\u00f1o; co2; colombia; crystals; cunas; deposits; emerald; et al; figure; fluid; giuliani; giuliani et; gonz\u00e1lez; hydrothermal; inclusions; marip\u00ed; mineralization; muzo; romero; spectra; temperature; veins", "summary": "Cunas emeralds are iron-poor and fall in the range of reported values for Colombian emeralds (Figure 12). Fluid inclusions data are particularly similar to the reported range for Colombian emerald deposits (Banks et al., 2000; Cheilletz et al., 1994; Giuliani et al., 1990, 2000; Kozlowski et al., 1988; Mantilla et al., 2007; Ottaway, 1994; Romero, 1993, 1998; Toloza, 2017).", "mime": "application/pdf"}, {"id": "esrj-90290", "words": "6110", "extension": ".pdf", "flesch": "42", "author": "Xu, Aimei; Azarkhosh, Hojatallah; Wu, Erjun", "title": "Monitoring Method of Longitudinal Land Subsidence and Deformation in Seismic Geological Disasters", "date": "2020", "keywords": "conditions; data; deformation; fiber; ground; land subsidence; longitudinal; method; monitoring; sensing; soil; subsidence; subsidence deformation; technology; vertical; working", "summary": "According to the monitoring situation in this paper, the development direction of optical fiber sensing monitoring technology for vertical land subsidence and ground fissures is summarized as follows: (1) Introducing fiber bragg grating sensing technology Fiber Bragg Grating (FBG) sensing technology has very high accuracy, but also has the unique advantages of anti-interference and corrosion resistance. Distributed optical fiber monitoring technology is based on BOTDA (Brillouin Optical Time-Domain Analysis) monitoring technology.", "mime": "application/pdf"}, {"id": "esrj-90315", "words": "8429", "extension": ".pdf", "flesch": "48", "author": "Zang, Kai; Wei, Jiuchuan; Yu, Linsong; Wan, Fang; Hu, Zunfang; Li, Yang", "title": "Calibration Method of Petroleum Underground Horizon Based on High Precision Gravity and Magnetic Exploration", "date": "2020", "keywords": "basin; calibration; curve; data; depth; exploration; faults; figure; gravity; horizon; layer; logging; method; petroleum; records; reflection; results; synthetic; time; underground; value", "summary": "Qualitative comparison of synthetic seismic records and crosswell seismic profiles can be obtained from two methods. Underground layer calibration method The above process determines the depth and undulation of the basin base by high precision gravity and magnetic exploration technology.", "mime": "application/pdf"}, {"id": "esrj-90340", "words": "6594", "extension": ".pdf", "flesch": "48", "author": "Pan, Hong; Khabazi, Mostafa", "title": "Study on the Evolution Monitoring of Topographic and Hydrological Characteristics of Small Watershed Based on Remote Sensing and GIS", "date": "2020", "keywords": "characteristics; edge; et al; evolution; image; method; monitoring; ndvi; pixel; sensing; soil; vegetation", "summary": "Group principal component images, use sparse representation method based on adaptive dictionary and dual-tree complex wavelet transform method to denoise principal component images with a small amount of information were the objectives of the paper; also the use the multi-scale wavelet transform to detect image edge; build a binary model of a pixel, extract vegetation index, and terrain factor based on a binary model of the pixel, and realize terrain and hydrological characteristics of the small watershed. On the basis of principal component analysis, the K-SVD model is used to denoise remote sensing images.", "mime": "application/pdf"}, {"id": "esrj-90432", "words": "6003", "extension": ".pdf", "flesch": "56", "author": "Jiang, Yudong; Luo, Jinming; Azarkhosh, Hojatallah; Wu, Erjun", "title": "The switching control method for the nonlinear response of seismic surface based on the local T-S model", "date": "2020", "keywords": "control; controller; method; model; nonlinear; response; seismic; surface; switching", "summary": "When the controller has additive perturbation, the convergence speed of the state response of the method in this paper is fast and stable, which shows the accuracy of the method in this paper for the switching control of seismic surface nonlinear response. In addition to the application of this paper in the study of switching control of seismic surface response, it can also be applied to the air-to-air vehicle, for example.", "mime": "application/pdf"}, {"id": "esrj-90532", "words": "6085", "extension": ".pdf", "flesch": "51", "author": "Karkush, Mahdi O; Ali, Shahad D.; Bakr, Junied A.", "title": "Influence of remediation by electrokinetic on the chemical and geotechnical properties of clayey soil contaminated by copper sulfate", "date": "2023", "keywords": "chemical; copper; copper sulfate; karkush; method; properties; remediation; removal; shear; soil; soil samples; strength; sulfate", "summary": "The hydraulic conductivity of soil samples tested by falling head tests (FHT) is reduced by increasing the content of copper sulfate in the soil specimen, where the hydraulic conductivity of soil sample C2 is less than of soil sample C1 by 33%. The removal efficiency of copper from contaminated soil samples was ranged from 98.4% to 99.6%.", "mime": "application/pdf"}, {"id": "esrj-91059", "words": "6046", "extension": ".pdf", "flesch": "56", "author": "Larocca, Patricia Alejandra; Arecco, M. A.; Macrino, A. C.", "title": "Anomalous geoelectric potential variations observed along a gas pipeline section in Argentine, possible intensification with variations of the Earth\u2019s magnetic field", "date": "2022", "keywords": "area; dst; earth; field; figure; gas; periods; pipeline; potential; psp; range; section; storm; variations", "summary": "During periods of intense magnetic storms, telluric currents caused by these geomagnetic disturbances in geomagnetic storm periods may be large enough to keep a pipeline unprotected for a significantly long time, which may reduce its useful life increasing the possibility of corrosion. These impacts range from slow, cumulative and excessive corrosion of pipeline systems (Ingham and Rodgers, 2018) to a rapid collapse (in minutes) of electricity grids (Trichtchenko and Boteler, 2001).", "mime": "application/pdf"}, {"id": "esrj-91114", "words": "5337", "extension": ".pdf", "flesch": "66", "author": "Hou, Chaoyong ; Cai, Houan ; Pei, Senlong ", "title": "The SHRIMP U-Pb isotope dating of Mesozoic volcanic from Zhangwu-Heishan Area, West Liaoning Province, China", "date": "2021", "keywords": "abstract; basalt; china; chinese; et al; liaoning; sihetun; volcanic; wang; yixian; zhang", "summary": "For instance, whether volcanic rock in Yixian Formation is of late Jurassic Epoch (Wang, 1987; Ren et al., 1997; Wang, 1998; Luo et al., 1999), late Jurassic to early Cretaceous Epoch (Zhang et al., 1992; Chen et al., 1998; Ji et al., 1998; Sun & Zheng, 2000; Jiang et al., 2000; Wang et al., 2002) or early Cretaceous Epoch (Li et al., 2001; Wang et al., 1999; Wang et al., 2001; Xu et al., 1999; Ji et al., 2002; Wang et al., 2005; Zhang et al., 2006) is an open question. Meanwhile, the researches on the stratigraphy, paleo-geography, paleoclimate, and paleomagnetism of the Mesozoic volcano-sedimentary basin in west Liaoning Province are gradually performed (Pan et al., 2001; Zhang et al., 2002; Zhu et al., 2001 & 2002; Gong et al., 2007; Li et al., 2002; Ren, 1997).", "mime": "application/pdf"}, {"id": "esrj-91149", "words": "6754", "extension": ".pdf", "flesch": "53", "author": "Li, Bin; Li, Qiqi; Mei, Wenhua; Zhuo, Qingong; Lu, Xuesong", "title": "Analysis of accumulation models of Middle Permian in Northwest Sichuan Basin", "date": "2021", "keywords": "accumulation; basin; belt; formation; gas; middle; middle permian; northwest; oil; permian; reservoir; rocks; sichuan; source", "summary": "ABSTRACT Analysis of accumulation models of middle Permian in Northwest Sichuan Basin An\u00e1lisis de los modelos de acumulaci\u00f3n del P\u00e9rmico medio en la cuenca del noroeste de Sichuan ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n4.91149 Un gran progreso se ha logrado en la exploraci\u00f3n del P\u00e9rmico medio en el noroeste de Sichuan (China) en los \u00faltimos a\u00f1os, pero a\u00fan persisten muchas preguntas para entender las condiciones de acumulaci\u00f3n de hidrocarburos. Besides, seismic data on middle Permian gas reservoirs have been collected from the Exploration and Development Research Institute of PetroChina Southwest Oil & Gasfield Company, including seismic interpretation section (AA \u2018) and seismic interpretation section of wells K1, S1, H2, ST3, and G5.", "mime": "application/pdf"}, {"id": "esrj-91195", "words": "8403", "extension": ".pdf", "flesch": "53", "author": "Konakoglu, Berkant; Akar, Alper", "title": "Geoid undulation prediction using ANNs (RBFNN and GRNN), multiple linear regression (MLR), and interpolation methods: A comparative study", "date": "2022", "keywords": "data; doi; ds#3; geoid; grnn; interpolation; mae; methods; nse; prediction; results; rmse; study; testing; training; undulation; values", "summary": "Geoid undulation prediction using ANNs (RBFNN and GRNN), multiple linear regression (MLR), and interpolation methods: A comparative study Berkant Konakoglua* and Alper Akarb aTechnical Sciences Vocational School, Amasya University, Amasya, Turkey bVocational School, Erzincan Binali Y\u0131ld\u0131r\u0131m University, Erzincan, Turkey *Corresponding author: berkantkonakoglu@amasya.edu.tr Keywords: Generalized regression neural network (GRNN); Radial basis function neural network (RBFNN); Multiple linear regression (MLR); Interpolation methods; Geoid determination Palabras clave: red neuronal de regresi\u00f3n generalizada; red neuronal de base radial; regresi\u00f3n lineal m\u00faltiple; m\u00e9todos de interpolaci\u00f3n; determinaci\u00f3n geoide. Interpolation methods RMSE (m) MAE (m) NSE Krig 0.143 0.095 0.98961 IDP 0.207 0.164 0.97842 TLI 0.159 0.102 0.98729 MCS 0.178 0.110 0.98409 NN 0.142 0.097 0.98986 NRN 0.275 0.217 0.96196 LP 0.171 0.130 0.98532 RBF 0.188 0.122 0.98214 PR 0.462 0.345 0.89245 MS 0.404 0.206 0.91746 379Geoid undulation prediction using ANNs (RBFNN and GRNN), multiple linear regression (MLR), and interpolation methods: A comparative study Figure 8.", "mime": "application/pdf"}, {"id": "esrj-91378", "words": "6348", "extension": ".pdf", "flesch": "53", "author": "Xie, Xiaoping ; Fang, Xinqiu ; Liang, Minfu ; Ai, Dechun ", "title": "Geological evolution process, mechanism, and application of protective layer in semi-coal and rock face", "date": "2021", "keywords": "coal; coal seam; deformation; face; layer; mining; pillar; pressure; roadway; rock; seam; semi; stress; width; working", "summary": "Keywords: Semi-coal rock; Geological Evolution; Non-coal pillar; Distressed blind-zone; Gas extraction. J. Vol. 24, No. 4 (December, 2020): 499-506 Xiaoping Xie1,2, Xinqiu Fang1*, Minfu Liang1,3, Dechun Ai2 1State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China 2College of Mining and Civil Engineering, Liupanshui Normal University, Liupanshui 553004, China 3School of Management, China University of Mining and Technology, Xuzhou 221116, China\u201d *Corresponding author: 264580414@qq.com M IN IN G E NG IN EE RI NG 500 Xiaoping Xie, Xinqiu Fang, Minfu Liang, Dechun Ai Introduction When the roadway excavation section has both rock and coal seam, and when the coal seam occupies 1/5 to 4/5 of the area of the excavation face, it is called semi-coal-rock mining working seam, which generally exists in thin coal seam conditions.", "mime": "application/pdf"}, {"id": "esrj-91473", "words": "4776", "extension": ".pdf", "flesch": "49", "author": "Fan, Yang; Lifeng, Liu ; Qiquan, Ran; Jinping, Kong; Mengya, Xu; Jiaxin, Dong", "title": "The characteristics of unconventional tight oil reservoir and its modification technology and productivity prediction", "date": "2021", "keywords": "f f; fracture; fracturing; horizontal; pressure; production; productivity; reservoir; tight; wells", "summary": "Steady-state productivity of fractured horizontal wells in tight reservoirs Comparison of productivity models for fractured horizontal wells in tight reservoirs The steady-state solution of rectangular boundary reservoir with vertical fracture is studied. Then, on this basis, the steady productivity formula of fractured horizontal wells is established.", "mime": "application/pdf"}, {"id": "esrj-91593", "words": "4509", "extension": ".pdf", "flesch": "52", "author": "Yan, Xiaotong ; Wang, Shun; Wang, Ningwei", "title": "Analysis and Evaluation Methods of Seismic Subsidence Characteristics of Loess and Field Seismic Subsidence", "date": "2021", "keywords": "coefficient; content; density; figure; loess; ratio; soil; strain; stress; subsidence; water", "summary": "Methodology Characteristics and influencing factors of loess seismic subsidence The main mechanism, disaster development mode, and disaster types of loess seismic subsidence are influenced by the material index of soil, topographic characteristics of loess field, and earthquake. It can be observed that the seismic subsidence coefficient produced by loess soil is proportional to A B 50 100 150 200 250 0 1 2 3 R es id ua l s tr ai n /% Dynamic stress 10% 20% 30% 35% 1 2 3 4 0.0 0.5 1.0 1.5 2.0 2.5 35%30%20% R es id ua l s tr ai n /%", "mime": "application/pdf"}, {"id": "esrj-91626", "words": "7449", "extension": ".pdf", "flesch": "41", "author": "Li, Juan ; Liu, Wei ; Zhang, Xinxin", "title": "Evaluation algorithm of alhagi sparsifolia desertification control under different irrigation amounts", "date": "2021", "keywords": "alhagi; alhagi sparsifolia; area; control; data; desertification; desertification control; evaluation; grassland; grassland desertification; index; indexes; process; project; sand; soil; sparsifolia; vegetation; \uf8fa \uf8fa", "summary": "At present, grassland desertification control through alhagi sparsifolia is a common method in the world. Because there are many factors affecting the ecological benefit index of the grassland desertification control project, when determining the specific index, it is necessary to combine the actual situation and select the core factors that can express the degree of grassland desertification control as the dominant index.", "mime": "application/pdf"}, {"id": "esrj-92069", "words": "7837", "extension": ".pdf", "flesch": "40", "author": "Miao, Jianjun; Lu, Qian", "title": "An empirical study on the potential of land resources utilization in urban agglomeration development zones based on combination analysis", "date": "2021", "keywords": "area; combination; development; development zone; evaluation; factors; high; index; land; land area; land use; natural; potential; rate; tech; tech zone; use; value; years; zone", "summary": "Combined with the actual situation of land use in high-tech zone and the characteristics of sustainable land use in the county and referring to the evaluation standards of sustainable land use in China and abroad, an evaluation system of sustainable land use with the overall goal of sustainable land use in a high-tech zone is finally established, which includes four criteria levels: land-use level, resource security, economic feasibility, and social acceptability, as shown in Table 1. Indicator schematic map of sustainable land use in high-tech zones from 2014 to 2018 In conclusion, the evaluation results of sustainable land use in the high- tech zone are as follows: \u2460 the rationality of land use in the area is relatively high, and the index continues to rise during the evaluation period, from 0.48 in 2014 to 0.81 in 2018, which is at a sustainable high level.", "mime": "application/pdf"}, {"id": "esrj-92151", "words": "6111", "extension": ".pdf", "flesch": "57", "author": "Zhang, Yunxiang ; Wang, Bin; Zhang, Lei", "title": "High-precision GPS measurement method without geographical restrictions using crowd-sensing technology", "date": "2021", "keywords": "acquisition; crowd; data; frequency; gps; measurement; method; network; satellite; sensing; signal", "summary": "Sensing data may leak the privacy and sensitive information of the users, so a reasonable privacy protection mechanism must be designed to ensure the privacy of the users while completing data collection as much as possible. DOI: https://doi. org/10.15446/esrj.v24n4.92151 In order to improve the flexibility of GPS measurement, a high-precision GPS measurement method that is not restricted by the geographical location under crowd-sensing technology was proposed.", "mime": "application/pdf"}, {"id": "esrj-92387", "words": "6371", "extension": ".pdf", "flesch": "35", "author": "Huang, Yanyan ", "title": "Destruction process and restoration countermeasures of the ecological environment of a comprehensive geological structure", "date": "2021", "keywords": "area; changes; countermeasures; damage; destruction; development; environment; evaluation; land; mining; process; protection; resources; restoration; structure; surface; water", "summary": "Considering the geological structure of the mining area, from the perspective of the four problems shown in the table, the damage of mining to the ecological environment was analyzed, and then corresponding countermeasures for ecological environment restoration were proposed. freeze-thaw Medium Strong Medium Strong Medium Strong Medium Strong score 5 10 5 10 5 10 5 10 Geological disaster Score 10 8 6 4 2 frequency \u226510 5-9 3-4 1-2 0 Economic losses >100 10-100 1-10 0.1-1 \u22640.1 Casualties \u226510 5-9 3-4 1-2 0 Sphere of influence >1 0.1-1 0.01-0.1 0-0.01 0 Occupation and destruction of land resources Score 10 8 6 4 2 Occupied land area >1 0.5-1 0.1-0.5 0.01-0.1 \u22640.01 Area of occupied land >0.5 0.1-0.5 0.01-0.1 0-0.01 0 waste water disposal Score 10 8 6 4 2 Annual emissions >1 0.1-1 0.01-0.1 0-0.01 0 Solid waste discharge Score 10 8 6 4 2 Accumulated stock >10 1-10 0.1-1 0.01-0.1 \u22640.01 Wastewater toxicity Score 10 2 toxicity poisonous Non-toxic Groundwater equilibrium damage Score 10 8 6 4 2 Drainage area >1 0.1-1 0.01-0.1 0-0.01 0 435Destruction process and restoration countermeasures of the ecological environment of a comprehensive geological structure Where, S represents the productivity value of forest resources in the resource extraction area, n is constant, qi represents the area of the plant in i years, wi represents the increase in the unit area of forest resources, ei represents the price of net income per unit area of plant resources such as forests, \uf061 represents the price growth rate; L indicates the value of scientific research and tourism, ri indicates the benefits of scientific research and tourism brought by the unit forest, Ui represents the forest area for ecological environment restoration; H represents the average annual storage value, ti represents the average price of building a reservoir per square meter, yi indicates the amount of water stored before the restoration of the ecological environment, \uf062 represents the price increase factor; D represents the value of biodiversity, \uf06ei indicates the ecological value of the unit area of the ecological environment, ci indicates the area of ecological environment restoration; Jis the value of degrading pollutants, miindicates the treatment cost per unit of pollutant, bi is the amount of pollutants degraded in the surrounding area after the restoration of the ecological environment.", "mime": "application/pdf"}, {"id": "esrj-92417", "words": "10577", "extension": ".pdf", "flesch": "56", "author": "Dursun, Felat; Zorlu, Kemal; G\u00fcl, Murat", "title": "Using satellite imagery to assess the changes in land use and land cover in Diyarbak\u0131r city (SE Turkey)", "date": "2022", "keywords": "activities; area; changes; city; class; diyarbak\u0131r; et al; figure; increase; land; land cover; land use; locations; lulc; percent; sensing; study; turkey; years", "summary": "Spatiotemporal analysis of land use land cover changes and built-up expansion projection in predominantly dystric nitosol of Ebonyi state, Southeastern, Nige- ria. Change analysis in land use land cover due to surface mining in Jharia coalfield through Landsat time se- ries data.", "mime": "application/pdf"}, {"id": "esrj-92419", "words": "4228", "extension": ".pdf", "flesch": "55", "author": "Naranjo Sierra, Edwin", "title": "Ore-controlling structures and geostatistical determination of ore-shoots in shear zone hosted lode gold type deposits, El Bagre-Antioquia, Colombia", "date": "2022", "keywords": "bagre; colombia; deposits; figure; gold; lode; mineralization; naranjo; ore; orebodies; shoots", "summary": "This study evidences the use of a simple and effective tool for lode gold deposits exploration. Distribution, character, and genesis of gold deposits in meta- morphic terranes.", "mime": "application/pdf"}, {"id": "esrj-92490", "words": "7199", "extension": ".pdf", "flesch": "56", "author": "Erdogan, H.; Oktar, O.; Gezgin, Cemil; Poyraz, F.; Arslan, N.; Yilmazturk, F.", "title": "Investigating the effects of groundwater level changes on GNSS observations in the Konya Closed Basin", "date": "2022", "keywords": "analysis; basin; changes; closed; gnss; groundwater; konya; level; linear; movements; northeast; series; stations; time; time series; wells; year", "summary": "This negative variation is considered to affect the movement of GNSS stations in the vertical direction. Methodology Time Series Analysis The behaviors of continuously operating GNSS stations under different effects described above can be explained by the analysis of time series.", "mime": "application/pdf"}, {"id": "esrj-93184", "words": "6965", "extension": ".pdf", "flesch": "52", "author": "Wang, Shuilin ; Liu, SongYong ; Meng, Fanping ", "title": "Fault diagnosis mechanism of gears and bearings for coal mining equipment in a complex geological environment", "date": "2021", "keywords": "area; bearing; calculation; coal; data; diagnosis; equipment; f f; fault; figure; formula; gear; method; mining; value", "summary": "According to the yield strength value, the critical value of functional failure of gear bearing capacity is confirmed. In the formula, \uf07an represents n shape values, \uf06b, i and j are the result statistics values of formula (2-7), so as to realize the extraction of gear and bearing fault feature data in coal mining equipment in a complex geological environment (Sayers et al., 2019).", "mime": "application/pdf"}, {"id": "esrj-93320", "words": "6220", "extension": ".pdf", "flesch": "54", "author": "Wang, Zhongjie ; Lin, Min", "title": "Finite Element Analysis Method of Slope Stability based on Fuzzy Statistics", "date": "2021", "keywords": "analysis; calculation; displacement; element; finite; method; model; rock; rock slope; rock soil; slope structure; soil slope; stability; stress; structure; value", "summary": "According to the American api code, the friction force f EI d= / of soft clay to the unit area of rock soil slope is not greater than the undrained shear strength cu of soft clay; the maximum end resistance stress (soil reaction at the bottom of slope) is 9cu. Finite element analysis of the stability of rock soil slope The key factor to determine the stability of rock soil slope is the embedment of foundation soil.", "mime": "application/pdf"}, {"id": "esrj-93700", "words": "5958", "extension": ".pdf", "flesch": "38", "author": "Xiong, Yiying ", "title": "Correlation analysis between multifractal characteristics of regional geomorphology and development of geological disasters", "date": "2021", "keywords": "analysis; characteristics; correlation; development; disasters; geomorphology; multifractal; number; regional; relationship", "summary": "Combined with the above-mentioned spatial relationship of geological disaster development and the multifractal characteristic data of regional landforms, the correlation coefficient between the two is calculated to complete the correlation analysis between the multifractal characteristics of regional geomorphology and the development of geological disasters. Analysis of spatial relationship of geological disaster development Before analyzing the spatial relationship of geological hazard development, 12 geological points are selected first, and then the geological hazard is divided into landslide, collapse and debris flow by using the fractal characteristic parameters of landform and the spatial distribution characteristic parameters of geological point landslide hazard.", "mime": "application/pdf"}, {"id": "esrj-93725", "words": "7069", "extension": ".pdf", "flesch": "46", "author": "Lv, Yan ; Lu, Laijun ; Cao, Mengxue ", "title": "Tracing method of Rare Earth Elements in surrounding rock of geological formation based on three-dimensional positioning algorithm", "date": "2021", "keywords": "determination; earth; earth elements; elements; heating; interference; mass; matrix; method; microwave; rock; sample; solution; standard; table; time; value", "summary": "In this paper, the interference of mass spectrometry and non mass spectrometry in rare earth element tracing is analyzed, and the three- dimensional positioning algorithm is used to trace rare earth elements in the surrounding rock of geological strata, which has better tracking effect. v25n1.93725 Because of the interference of mass spectrum and non-mass spectrum, the tracing accuracy of rare earth elements in the surrounding rock of geological formation is low.", "mime": "application/pdf"}, {"id": "esrj-93869", "words": "7770", "extension": ".pdf", "flesch": "49", "author": "Li, Maolin ", "title": "Dynamic monitoring algorithm of natural resources in scenic spots based on MODIS Remote Sensing technology", "date": "2021", "keywords": "area; change; data; forest; forest resources; image; information; land; libo; method; model; monitoring; research; resources; scale; segmentation; sensing; spot; value; water", "summary": "(3) Image information enhancement For the pseudo color image of TM4.5.3 after synthesis, in order to highlight the information of remote sensing image and distinguish different land type features, the multi-stage gray stretch transform is adopted, which can stretch all the ground objects linearly in the range of 0-255 of national radiance level, or stretch different targets in a certain gray range, and compress other non-target ground objects processing to achieve the purpose of extracting and enhancing the target features (Pahlevan et al., 2017). Multiscale segmentation of remote sensing image Because the multi-scale segmentation considers the multi-level of the field pattern of the earth\u2019s surface and overcomes the fixed size of the data source, it can make full use of all kinds of information and select the most appropriate segmentation scale to segment-specific terrain types, so this segmentation adopts the multi-scale segmentation method.", "mime": "application/pdf"}, {"id": "esrj-93896", "words": "6386", "extension": ".pdf", "flesch": "43", "author": "Guo, Lin; Zhang, Xiaocun ; Chen, Yao ; Liu, Jun ", "title": "Remediation of High Concentration Chromium Contaminated Soil by Enhanced Electrodynamic Method", "date": "2021", "keywords": "chromium; concentration; electrokinetic; iii; oxidation; permanganate; potassium; potassium permanganate; prb; reaction; remediation; residue; soil", "summary": "After investigation, the pollution characteristics of excessive chromium in soil are as follows: from the analysis of valence state, the content of Cr (III) in soil chromium pollution is significantly higher than that of Cr (VI), the content of Cr (VI) in chromium residue site is only more than ten percent of Cr (III); from the analysis of morphology, the proportion of residual chromium is the largest. The traditional electrokinetic remediation technology only migrates and concentrates the mobile target pollutants into the electrolytic cell, and the removal efficiency of most of the difficult to migrate Cr (III) in the chromium residue contaminated soil is low.", "mime": "application/pdf"}, {"id": "esrj-93925", "words": "6842", "extension": ".pdf", "flesch": "46", "author": "Zhang, Yannan ; Liang, Chuan ", "title": "Application of remote sensing technology in the analysis of periodic precipitation change in China\u2019s Northern semi-arid area", "date": "2021", "keywords": "50a; arid; changchun; change; china; figure; harbin; oscillation; period; precipitation; precipitation change; term; time; wavelet; years", "summary": "Among them, the maximum peak corresponds to the time scale of 50a, indicating that the cycle oscillation of about 50a is the strongest, which is the first main cycle of precipitation change in four areas; The 20a time scale corresponds to the second peak, which is the second main cycle of annual precipitation change; The third peak corresponds to the time scale of 14a, which is the third main cycle; The fourth peak corresponds to the time scale of 37a, which is the fourth main cycle; The fifth peak corresponds to the time scale of 6a, which is the fifth main period. Lan Yongchao et al. studied the impact of climate change on the water resources system in the upper reaches of the Yellow River; Xu Yueqing et al. studied the law of precipitation change in Hebei Plain based on wavelet analysis; Lin Zhenyao et al. studied the temporal and spatial characteristics of temperature and precipitation change in the Qinghai Tibet Plateau; Dai Xingang et al. studied the multi-scale characteristics of precipitation in flood season and the inter-generational decay characteristics of summer monsoon in North China Levy.", "mime": "application/pdf"}, {"id": "esrj-93927", "words": "4328", "extension": ".pdf", "flesch": "55", "author": "Pinz\u00f3n, Luis A.; Hidalgo-Leiva, Diego A.; Moya-Fern\u00e1ndez , Aar\u00f3n; Schmidt-D\u00edaz, Victor; Pujades, Luis G.", "title": "Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period", "date": "2022", "keywords": "classification; costa; motion; period; site; soil; stations; vs30", "summary": "Seismic site classification of the Costa Rican Strong- Motion Network based on V S30 measurements and site fundamental period. Measured Vs30 values at the station of the Costa Rican Strong-Motion Network plotted against site fundamental period values obtained from HVSR.", "mime": "application/pdf"}, {"id": "esrj-94076", "words": "7508", "extension": ".pdf", "flesch": "52", "author": "Wang, Xuli", "title": "Fractal characteristics of geomorphological heterogeneity in Xisha Islands waters under Multiple Linear Regression", "date": "2021", "keywords": "characteristics; dimension; fractal; landforms; las; method; projection; research; scale; shidao water; surface; water; water area; xisha islands", "summary": "Fractal dimension calculation results of Xisha Islands water area based on projection coverage method Measuring order The correlation coefficient (r2) Fractal characteristics of geomorphological heterogeneity in Xisha Islands waters under Multiple Linear Regression.", "mime": "application/pdf"}, {"id": "esrj-94162", "words": "2745", "extension": ".pdf", "flesch": "48", "author": "Chen, Rong ", "title": "Application of UAV-Low Altitude Remote Sensing System in Sea Area Supervision", "date": "2021", "keywords": "area; figure; gps; image; method; sea; sensing; study; uav", "summary": "As can be seen from Figure 4, the sandy shoreline extracted from UAV remote sensing images is quite different from that based on radar point cloud data. As can be seen from Figure 5, the difference between the two methods based on UAV remote sensing image and radar point cloud data is small, whether it is the coordinates of artificial shoreline feature points or bedrock shoreline feature points.", "mime": "application/pdf"}, {"id": "esrj-94403", "words": "4256", "extension": ".pdf", "flesch": "45", "author": "Fateh, Hamid; Toube, Ahmad ; Gholipuri, Abdul Qayum ", "title": "Wheat physiological traits response in standard and ecological agricultural systems", "date": "2021", "keywords": "effect; input; photosynthesis; priming; seed; system; water; wheat; year", "summary": "Higher soil capacity to retain moisture in ecological agricultural systems, especially biological systems, has been discussed in several sources (Lotter et al., 2003; Hole et al., 2005). However, unlike photosynthesis, transpiration rate was the lowest in ecological agricultural system (Fig. 5).", "mime": "application/pdf"}, {"id": "esrj-94720", "words": "9099", "extension": ".pdf", "flesch": "48", "author": "Pandey, Vijendra; Sharma, Milap Chand", "title": "Sedimentological characteristics and their relationship with landsliding in the Bhilangana Basin, Garhwal Himalaya, India", "date": "2023", "keywords": "analysis; clay; composition; debris; e78; fall; garhwal; grain; himalaya; india; landslide; material; minerals; n30; quartzite; relationship; rock; sediment; size; slope; strength; study; surface", "summary": "Each type of landslide has a varying composition of grain size composition and texture, hence these results are. Analysis of the failed slope material shows a definite pattern of grain size composition associated with the type of landslide as well as lithology.", "mime": "application/pdf"}, {"id": "esrj-94786", "words": "8348", "extension": ".pdf", "flesch": "59", "author": "Top\u00e7u, Emre", "title": "Drought Monitoring Using MOWCATL Data Mining Algorithm in Aras Basin, Turkey ", "date": "2022", "keywords": "algorithm; antecedent; aras; basin; conditions; consequent; data; drought; index; mining; mowcatl; precipitation; rules; spi12(4; spi3(4; study; table; time", "summary": "The study results revealed that the antecedent parameters were ineffective in detecting arid conditions in Ardahan and Do\u011fubeyaz\u0131t stations, and they were influential on drought conditions, especially in a-SPI-3 and a-SPI-12 month periods at other stations. Meteorological drought is the primary type, which is the impetus behind other droughts, bringing about a decrease in the normal long term precipitation.", "mime": "application/pdf"}, {"id": "esrj-95060", "words": "5516", "extension": ".pdf", "flesch": "51", "author": "Ilci, Veli; Sisman, Yasemin", "title": "A Modelling Study by Factorial Design on GNSS Positioning", "date": "2022", "keywords": "cors; data; design; effects; errors; factorial; factors; gnss; gps; horizontal; levels; positioning; study; vertical", "summary": "The main results of the study can be summurazed as follows; \u2022 R2 values were satisfactory (98.56% for CORS horizontal, 92.91% for CORS vertical positioning errors). \u2022 Season (X1) and Season*DOP (X1*X3) effects of factors were insignificant on CORS vertical positioning errors at the 5% level.", "mime": "application/pdf"}, {"id": "esrj-95289", "words": "6415", "extension": ".pdf", "flesch": "48", "author": "Velasquez Ruiz, Felipe; Mart\u00ednez, Juan Camilo; Tob\u00f3n Acevedo, Alejandra ; Yepes Metaute, Alejandra; Zapata, Ang\u00e9lica Mar\u00eda; Cata\u00f1o Salas, Diana Paulina", "title": "Modeling of the large Miocene epithermal and porphyry gold deposits of Colombia using Monte Carlo simulations", "date": "2022", "keywords": "carlo; cauca; cmb; colombia; crust; deposits; endowments; et al; gold; km3; magma; miocene; monte; porphyry", "summary": "Modeling of the large Miocene epithermal and porphyry gold deposits of the Cauca Metallogenic Belt of Colombia using Monte Carlo simulations Felipe Vel\u00e1squez Ruiz1,2*, Juan Camilo Mart\u00ednez3, Alejandra Tob\u00f3n Acevedo4, Alejandra Yepes Metaute5, Ang\u00e9lica Mar\u00eda Zapata6, Diana Paulina Cata\u00f1o Salas4 1Department of Geology, FCFM, University of Chile, Plaza Ercilla 803, Santiago, Chile 2Millennium Nucleus for Metal Tracing Along Subduction, FCFM, University of Chile, Chile 3School of Civil and Environmental Engineering, Vanderbilt University, TN, USA 4School of Geosciences and Environment, Universidad Nacional de Colombia, Sede Medell\u00edn, Colombia 5Group Digital, FLSmidth, PA, USA 6Instituto de Geoci\u00eancias, Universidade de Bras\u00edlia, Brazil *Corresponding author: fevelasquezru@unal.edu.co Keywords: Modeling; Monte Carlo simulations; Northern Andes; Miocene magmatism; Cauca Metallogenic Belt. In contrast, the hypothetical reservoirs for the lower and middle crust of the CMB, through a basaltic calc-alkaline magma flux between 0.0007 and 0.0011 km3/year, the efficiency of ~0.7%, and pressures below 5 kbar, showed sufficient available content of exsolvable H2O and gold to feed the reservoirs in the upper crust of the CMB or to generate gold deposits from them, but in longer time intervals (>1 Ma).", "mime": "application/pdf"}, {"id": "esrj-95321", "words": "6724", "extension": ".pdf", "flesch": "53", "author": "Calero Mosquera, Daniela; Hoyos Villada, Fanny ; Torres Prieto, Enrique A.", "title": "Runoff Curve Number (CN model) Evaluation Under Tropical Conditions ", "date": "2022", "keywords": "antecedent; cn model; cnq; curve; data; et al; events; hawkins; micro; model; moisture; rainfall; runoff; scs; soil; watershed", "summary": "Therefore, the \u201cStandard asymptotic adjustment method\u201d was used, obtaining the following adjustment =0.95): In Equation 12, a CN\u221e of 44.62 was defined for high rainfall events and it describes the CNQ trend in the case of rainfall events of significant magnitude, however it is a much lower CN value than those analyzed in the set of data presented in Figure 8 (Hawkins, 1993). In addition, rainfall events where found the SCS-CN model assume runoff as (zero), while the observed data reported runoff.", "mime": "application/pdf"}, {"id": "esrj-95405", "words": "11979", "extension": ".pdf", "flesch": "51", "author": "Vega Guti\u00e9rrez, Johnny Alexander; Palomino-\u00c1ngel, Sebasti\u00e1n; Anaya, Jes\u00fas", "title": "Structural attributes estimation in a natural tropical forest fragment using very high-resolution imagery from unmanned aircraft systems", "date": "2022", "keywords": "accuracy; area; camera; canopy; chm; crown; data; delineation; et al; forest; height; imagery; images; model; point; resolution; segmentation; sensing; tree; tropical; uas", "summary": "Mapping forest successional stages in the Bra- zilian Amazon using forest heights derived from TanDEM-X SAR in- terferometry. Tree height accuracy using LiDAR is close to 1 m (Mielcarek et al., 2018) which is better than the 4 m found with our methods.", "mime": "application/pdf"}, {"id": "esrj-95748", "words": "7771", "extension": ".pdf", "flesch": "48", "author": "Valipour, Mahdieh; Mohseni, Neda; Hosseinzadeh, Seyed Reza ", "title": "Factors affecting topographic thresholds in gully erosion occurrence and its management using predictive machine learning models", "date": "2022", "keywords": "algorithm; distance; erosion; erosion susceptibility; et al; factors; gully; gully erosion; land; learning; machine; models; soil; study; susceptibility; svm; variables", "summary": "J. Vol. 25, No. 4 (December, 2021): 423-432 G EO LO G Y Record Manuscript received: 13/05/2021 Accepted for publication: 03/11/2021 ABSTRACT Soil degradation induced by gully erosion represents a worldwide problem in the many arid and semi-arid countries, such as Iran. This study assessed: (1) the importance of variables that control gully erosion using the Boruta algorithm, (2) the relationship among causative variables and gullied locations using the evidential belief function model (EBF), and (3) gully erosion development using the algorithms of boosted regression tree (BRT) and support vector machine (SVM).", "mime": "application/pdf"}, {"id": "esrj-95782", "words": "6037", "extension": ".pdf", "flesch": "51", "author": "Solano Fino, Juan Manuel; Caneva, Alexander; Vargas Jim\u00e9nez, Carlos Alberto; Ochoa, Luis Hern\u00e1n", "title": "Electrical and magnetic data time series\u2019 observations as an approach to identify the seismic activity of non-anthropic origin", "date": "2021", "keywords": "anomalies; colombia; data; days; earthquakes; events; field; figure; group; magnetic; ses; signals; station; tunj; usme; vcio", "summary": "Another method consists of the identification of Seismic Electric Signals (SES), and more recently, the natural time analysis, based on the correlation between the occurrence of seismic events and the SES with the Varotsos-Alexopoulos-Nomicos (VAN) method, which has shown partial success in short and medium-term forecasts (Varotsos et al., 2019; 2006; 1993) and analyzes after the occurrence of large seismic events (Sarlis et al., 2021; 2015). v25n3.95782 In this study, the authors worked on identifying a possible relationship between electromagnetic signals (EM) and seismic events in the lithospheric system in the central region of Colombia.", "mime": "application/pdf"}, {"id": "esrj-95993", "words": "14569", "extension": ".pdf", "flesch": "53", "author": "Cano, N\u00e9stor Alfredo ; Molano, Juan Carlos; Sep\u00falveda, Janeth", "title": "Petrogenetic constraints of the La Quinta Formation igneous rocks, Serrani\u0301a del Perija\u0301, northern Colombian Andes", "date": "2022", "keywords": "andes; colombia; del; et al; figure; formation; garc\u00eda; ilmenite; jim\u00e9nez; jurassic; la quinta; magnetite; perij\u00e1; plagioclase; quinta; quinta formation; rocks; rodr\u00edguez; samples; serran\u00eda; south; tap; volcanic", "summary": "These rocks display a wide compositional range in the sub-alkaline spectrum (basalt/gabbro to rhyolite/granite) (Rodr\u00edguez et al., 2018; Correa-Mart\u00ednez et al., 2019; L\u00f3pez- Isaza & Zuluaga, 2020; Rodr\u00edguez-Garc\u00eda & Obando, 2020). Additionally, they show consistent evidence of arc-related magmatism resulting from the subduction of the Farallon plate beneath the western margin of disassembling Pangea (Maze, 1984; Mojica & Kammer, 1995; Bustamante et al., 2010; Leal- Mej\u00eda, 2011;", "mime": "application/pdf"}, {"id": "esrj-96209", "words": "15253", "extension": ".pdf", "flesch": "46", "author": "Verma, Omkar; Prashanth, M; Greco, Roberto; Khosla, Ashu; Singh, Kulwant", "title": "Geological education scenario in India and role of open educational resources in the light of COVID-19 pandemic", "date": "2022", "keywords": "country; covid-19; data; degree; development; earth; education; field; geology; geoscience; india; learners; learning; master; oer; online; open; origin; pandemic; programs; research; resources; science; teaching; tlr; university; use; verma", "summary": "Development of Indian higher geological education The study of geological phenomena in India had been recorded from time immemorial when Indians started to observe and record the behavior of Earth\u2019s natural processes. Indian geological education has many strategies for meeting the varied needs of society, addressing the economic growth of the country using natural resources, and refining basic and applied principles of Geology (Sharma, 1998; Radhakrishna, 2005; Sheth, 2007;", "mime": "application/pdf"}, {"id": "esrj-96571", "words": "9206", "extension": ".pdf", "flesch": "55", "author": "Demir, Sinan; Alaboz, Pelin; Dengiz, Orhan; \u015eenol, H\u00fcseyin; Yilmaz, Kamil; Ba\u015fkan, O\u011fuz", "title": "Physico-chemical and mineralogical changes of lithic xerorthent soils on volcanic rocks under semi-arid ecological conditions", "date": "2023", "keywords": "area; bedrock; chemical; clay; conditions; index; minerals; pii; piii; profile; properties; rocks; sanidine; soils; study; trachyandesite; trachybasalt; tuff; weathering", "summary": "Illuminating pathways of forest nutrient pro- vision: relative release from soil mineral and organic pools. The diversity of volcanic soils: focusing on the function of aluminum\u2013humus complexes.", "mime": "application/pdf"}, {"id": "esrj-96985", "words": "7297", "extension": ".pdf", "flesch": "51", "author": "Ali, Arshad; Shahid, Muhammad S.; Jabeen, Iffat; El-Ghali, Mohamed A.K.", "title": "Life on Mars (LoMars): History, advances, current research, and perspectives", "date": "2022", "keywords": "articles; authors; citations; figure; journal; life; lomars; mars; nasa; number; publications; research; rover; science; space", "summary": "Thus far, the USA has dominated in the number of citations and collaborations related to Mars research, given its facilities equipped with relevant infrastructure and researchers\u2019 capacity to explore the Solar System beyond Earth. With the exciting current and future developments in Mars research and prospects of human habitability on Mars, it is vital to evaluate the history and impact of the research on LoMars using statistical (i.e., bibliometric) methods.", "mime": "application/pdf"}, {"id": "esrj-97305", "words": "6016", "extension": ".pdf", "flesch": "57", "author": "Guerrero, Hern\u00e1n Dar\u00edo; Ochoa, Luis Hern\u00e1n", "title": "Subsoil geophysical evaluation using GPR and free software", "date": "2024", "keywords": "analysis; areas; data; figure; gpr; ground; parking; processing; profiles; radar; radargrams; subsoil; time; trees; wall", "summary": "258 Hern\u00e1n Dar\u00edo Guerrero, Luis Hern\u00e1n Ochoa In this work, we acquired GPR data on profiles covering the entire parking platforms area in that zone, which corresponds to the slab with problems in the surface. Data processing using RPGR Today, many commercial software applications that are dedicated 100% to GPR data are available (Huber and Hans, 2018).", "mime": "application/pdf"}, {"id": "esrj-97735", "words": "10772", "extension": ".pdf", "flesch": "54", "author": "Cibeira Urtiaga, \u00c1ngel; Berrocoso, Manuel ; Rosado, Bel\u00e9n; Pazos, Antonio", "title": "Detection and study of a high magnitude seismic event from GPS data: Case study of the 2011 Tohoku-Oki earthquake", "date": "2022", "keywords": "data; displacement; distance; earthquake; et al; event; geophysical; gps; japan; maximum; oki; research; seismic; series; stations; time; tohoku", "summary": "While traditional methods use seismic data, GNSS data or a combination of both for studying seismic events (Melbourne, T. et al., 2002; Hsu,Y. et al., 2006; Ohta, Y. et al., 2012; Larson, K. M., P. Bodin, and J. Gomberg 2003; Ohta, Y. et al., 2008), we propose to focus on the combination of temporal and displacement values derived only from GPS data to evaluate the propagation of the earthquake instead of the mechanism process (Yakota, Y., et al., 2009). https://doi. org/10.1111/j.1365-246X.2012.05576.x Zumberge, J. F., Heflin, M. B., Jefferson, D. C., Watkins, M. M., & Webb, F. H. (1997).", "mime": "application/pdf"}, {"id": "esrj-98451", "words": "10910", "extension": ".pdf", "flesch": "56", "author": "Oljira, Temesgen; Okunlola , Olugbenga Akindeji ; Olatunji , Akinade Shadrach ; Ayalew, Dereje; Bedada, Bekele Ayele", "title": "Petrogenesis of the Neoproterozoic rocks of Megele area, Asosa, Western Ethiopia", "date": "2022", "keywords": "area; atp; biotite; ethiopia; fig; gneiss; granite; granodiorite; megele; metabasalt; minerals; neoproterozoic; quartz; rocks; schist; shield; tectonic; trace", "summary": "Diagram showing: (a, b) trace and RE element of Megele area intrusive rocks vs. chondrite, normalizing values are from (Nakamura 1974), and (c, d) trace element of Megele area intrusive rocks vs. primitive mantle, normalizing values are from (Sun and McDonough, 1989). The other metamorphic mineral that shows metamorphism of the granitoids of Megele area Neoproterozoic rocks is fibrous actinolite which occurs in association with biotite and other mafic minerals (like hornblende and actinolite).", "mime": "application/pdf"}, {"id": "esrj-98795", "words": "11871", "extension": ".pdf", "flesch": "52", "author": "Babkir, Mohamed Diaeldin Babkir Hassan; Nton, Matthew E.; Eisawi, Ali A. M.", "title": "Depositional environment and hydrocarbon exploration potential based on sedimentary facies and architectural analysis of the Upper Cretaceous Shendi Formation in Musawwarat-Naga area, Shendi-Atbara Basin, Sudan", "date": "2023", "keywords": "area; atbara; basin; channel; cross; deposits; elements; facies; fig; fluvial; formation; iron; miall; quartz; sandstone; sandstone facies; shendi; study; sudan; trough", "summary": "The trough cross-bedded sandstone facies (St) is the predominant facies in the study area, representing more than 70% of the total succession. The second-order surfaces bound co-sets or individual sedimentary bodies that are genetically related such as the co-sets formed by the stacking of individual groups of cross-bed sets in the trough cross-bedded sandstone facies (St) (e.g., Fig.", "mime": "application/pdf"}, {"id": "esrj-99036", "words": "7355", "extension": ".pdf", "flesch": "46", "author": "Llanes C\u00e1rdenas, Omar; Cervantes Arce, Lorenzo; Gonz\u00e1lez Gonz\u00e1lez, Gabriel Eduardo", "title": "Calculation of indicators of maximum extreme temperature in Sinaloa state, northwestern Mexico", "date": "2023", "keywords": "aad; add; climate; dec-1; distribution; et al; functions; indicators; llanes; maximum; met; mmt; probability; sinaloa; temperature; \ufffd \ufffd", "summary": "Desarrollo Integral Regional, Unidad Sinaloa (CIIDIR\u2013IPN\u2013Sinaloa) *Corresponding author: ollanesc@ipn.mx C\u00e1lculo de indicadores de temperatura m\u00e1xima extrema en el estado de Sinaloa, noroeste de M\u00e9xico How to cite item: Llanes-C\u00e1rdenas, O., Cervantes-Arce, L., & Gonz\u00e1lez-Gonz\u00e1lez G.E. (2023). Repercusiones del cambio clim\u00e1tico global en el estado de Sinaloa, M\u00e9xico.", "mime": "application/pdf"}, {"id": "esrj-99194", "words": "6329", "extension": ".pdf", "flesch": "52", "author": "Hern\u00e1ndez-Guzm\u00e1n, Rafael; Onchi-Ramuco, Norma Leticia", "title": "Estimating surface runoff using the curve number method in an ungauged watershed in Jalisco, Mexico evaluating its morphometric parameters", "date": "2023", "keywords": "analysis; area; basin; cover; drainage; land; mexico; number; runoff; soil; study; surface; value; watershed", "summary": "The soils of hydrological group C (19.9%), with high runoff potential, followed in order of importance, while soils with low runoff potential (high infiltration, represented by hydrological group A), occupied the least extent. The channel maintenance constant indicates that the sub-basin is under conditions of few structural disturbances and low runoff.", "mime": "application/pdf"}]