id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
geosites-100	Shapiro, Russell; Dehler, Carol	Geobiology of "Snowball Earth" deposits of Antelope Island	2022	8	.pdf	application/pdf	5577	271	56	Utah Geosites 2019 Utah Geological Association Publication 48 M. Milligan, R.F. Biek, P. Inkenbrandt, and P. Nielsen, editors Russell Shapiro1 and Carol Dehler2 1 Department of Geological and Environmental Sciences, California State University-Chico, CA 95929, rsshapiro@csuchico.edu 2 Department of Geology, Utah State University, Logan, UT 84322 Geobiology of “Snowball Earth” Deposits of Antelope Island Cover Image: View of the outcrops of the lower dolostone of the Kelley Canyon Formation at the geosite. 4 M. Milligan, R.F. Biek, P. Inkenbrandt, and P. Nielsen, editors 2019 Utah Geological Association Publication 48 Finally, in the Neoproterozoic, there is a small resurgence of iron formation, suggesting low oxygen or high iron input conditions that is also likely related to the decoupling of the ocean from the atmosphere by ice sheets and the continued input of reduced forms of elements such as iron from sea floor spreading, subaque- ous mantle input, and sedimentation (Cox and others, 2013).	cache/geosites-100.pdf	txt/geosites-100.txt