Recognition of Petroleum Origin in the Northern Piedmont Belt of Turpan-Hami Basin and Its Significance

Figure 11

Cross-plot of ααα C₂₉ sterane S/(S+R) and C₂₉sterane ββ/(αα+ββ) in the inclusions, oil, and sandstones of the northern piedmont belt of the Turpan-Hami Basin. Note: K-I: Kekeya-inclusion; K-S: Kekeya-sandstone; K-O: Kekeya-crude oil; S-I: Shanle-inclusions; S-O: Shanle-crude oil; Z-I; Zhaobishan-inclusions; Z-O: Zhaobishan-crude oil; Z-S: Zhaobishan-sandstone; A-O: Aketashi-crude oil; A-S: Aketashi-sandstone; Q-S: Qialekan-sandstone.