id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
esrj-21115	A., Akinmosin; O.O., Osinowo; M. A., Oladunjoye	RADIOGENIC COMPONENTS OF THE NIGERIAN TAR SAND DEPOSITS	2009	10	.pdf	application/pdf	4145	224	64	Ac (Th) Ac228 (Bqkg-1) Absorbed Dose Rate (nGyhr-1) Dose Equivalents (mSvyr-1) S1 Tar sand 35.80 ± 6.92 14.22 ± 0.7 24.69 0.216 S6 Tar sand 20.48 ± 1.30 11.13 ±0.56 16.11 0.141 S8 Tar sand 88.4. ± 3.27 25.11 ± 0.9 54.64 0.473 S9 Slightly impregnated bituminous sand ND 2.23 ±0.28 1.48 0.013 S4 Tar sand 148.07±9.81 86.81 ± 2.6 121.33 1.06 S10 Tar sand 30.8 ± 1.16 17.76 ±0.52 24.63 0.20 S11 Tar sand ND 15.19 ±6.08 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 ± 0.45Bqkg-1 and 1003.91 ± 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 ± 0.33Bqkg-1 and 193.01 ± 19.94Bqkg-1; 226Ra activity values range between 6.10 ± 0.84BgKg-1 and 148.07 ± 9.81BgKg-1 ; 228Ac activity values range between 2.14 ± 0.60Bqkg-1 and 53.66 ± 4.44Bqkg-1 ; 208TI values range between 1.09 ± 0.38Bqkg-1 and 86.81 ± 2.6Bqkg-1.	cache/esrj-21115.pdf	txt/esrj-21115.txt