Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China

Jianping BAO,Cuishan ZHU,Zhifeng WANG

Fig. 2. Relative compositions of polycyclic aromatic hydrocarbon in 3-6 rings and their methyl homologues in the aromatic hydrocarbon fraction of crude oil from Well TD2 (peak signs for P, AN, MP, BAN, CH, FL, PY, BFL, B(e)PY, B(a)PY, PE and BPE refer to those in Fig. 1; BNTH=benzonaphthylthiophene; M=methyl).