Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China

Jianping BAO,Cuishan ZHU,Zhifeng WANG

Fig. 10. Distributions of triaromatic steroids in different marine crude oil samples (m/z 231). (a) Well TZ11, 4 301-4 307 m, S; (b) Well TD2, 4 561.93-5 040.00 m, ?C; (c) Well YM101, 5912.5- 5917.0 m, O; (d) Well YM201, 5844-5888 m, O.