Reservoir geological modeling and significance of Cambrian Xiaoerblak Formation in Keping outcrop area, Tarim Basin, NW China

ZHENG Jianfeng,PAN Wenqing,SHEN Anjiang,YUAN Wenfang,HUANG Lili,NI Xinfeng,ZHU Yongjin

Table 2 Strontium isotopic data of Xiaoerblak Formation dolostone samples.

Lithology Layer 87Sr/86Sr Standard deviation/10-6 Lithology Layer 87Sr/86Sr Standard deviation/10-6 LMD Lower Xiaoerblak 0.709 821 7 GD Middle Xiaoerblak-3 0.709 324 8 LMD Lower Xiaoerblak 0.709 374 3 GD Middle Xiaoerblak-3 0.709 412 6 LMD Lower Xiaoerblak 0.708 945 9 GD Middle Xiaoerblak-3 0.709 113 17 LMD Lower Xiaoerblak 0.708 992 8 FSD Middle Xiaoerblak-3 0.709 105 6 Bedded TD Middle Xiaoerblak-1 0.709 811 5 CD Middle Xiaoerblak-3 0.709 122 8 Bedded TD Middle Xiaoerblak-1 0.709 289 13 SD Upper Xiaoerblak 0.709 787 5 Bedded TD Middle Xiaoerblak-1 0.708 843 6 AD Upper Xiaoerblak 0.713 343 11 Frame-shaped TD Middle Xiaoerblak-2 0.709 257 4 GD Upper Xiaoerblak 0.713 218 2 Frame-shaped TD Middle Xiaoerblak-2 0.709 089 4 MD Upper Xiaoerblak 0.708 946 8