Deep-Buried Triassic Oil-Source Correlation in the Central Junggar Basin, NW China

Figure 5

Correlation of key biomarkers that distinguish the Permian, Jurassic, and Triassic mudstone source rocks and Triassic oil-source correlation in the central Junggar Basin. (a) Pr/n-C₁₇ versus Ph/n-C₁₈; (b) Pr/Ph versus β-carotane/n-alkane main peak; (c) C₂₀/C₂₁TT versus C₂₁/C₂₃TT; (d) regular sterane αααC₂₇20R/C₂₈20R versus αααC₂₈20R/C₂₉20R; (e) Ts/Tm versus gammacerane/C₃₀ hopane; (f) TT main peak/PT main peak versus C₂₄TeT/C₂₆TT. TT: tricyclic terpane. TeT: tetracyclic terpane. PT: pentacyclic terpane.

(a)

(b)

(c)

(d)

(e)

(f)