Geochemistry and Genesis of Oil and Gas Seeps in the Junggar Basin, NW China: Implications for Hybrid Petroleum Systems

Figure 12

Plots of δ¹³C₂ (ethane) vs. δ¹³C₁ (methane) for gas seeps in the Junggar Basin. Note: the dataset SW-x is from Sun et al. [77] and represents subsurface reservoir samples. The boundary lines for different genetic and maturation groups are modified after Dai [78] and Tao et al. [34]. Please see Tao et al. [34] for the discussion and definition of the boundaries for detail.