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

Jianping BAO,Cuishan ZHU,Zhifeng WANG

Fig. 7. Distributions of sterane series in four crude oil samples (m/z 217). (a) Well TZ11, 4 301-4 307 m, S; (b) Well TZ30, 4 997-5 026 m, O; (c) Well YM101, 5 912.5-5 917.0 m, O; (d) Well YM201, 5 844-5 888 m, O.