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

<div>Selected molecular geochemical chromatograms of oil-seep and crude-oil samples from the northwestern Junggar Basin. TIC: total ion current mass chromatogram; UCM: unresolved complex mixture; T: tricyclic terpane; Te: tetracyclic terpane; NH: nor-hopane; H: hopane; Dia: diasteranes; St: steranes.</div>

Geofluids

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Figure 4

Figure 4: Geochemistry and Genesis of Oil and Gas Seeps in the Junggar Basin, NW China: Implications for Hybrid Petroleum Systems 