Research Article
Geochemical Characteristics and Origins of the Crude Oil of Triassic Yanchang Formation in Southwestern Yishan Slope, Ordos Basin
Figure 8
Cross plots of (C19 tricyclic Terpanes + C20 tricyclic Terpanes)/C23 tricyclic Terpanes versus C25 tricyclic Terpanes/C26 tricyclic Terpanes (a) and gammacerane/αβ-C30 Hopanes versus ∑ > C30 Hopanes ratios (b) of the study crude oil and source rock samples in Southwestern of Yishan Slope.
(a) |
(b) |