Geochemical significances of 8,14-secohopanes in marine crude oils from the Tazhong area in the Tarim Basin, NW China
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Geochemical significances of 8,14-secohopanes in marine crude oils from the Tazhong area in the Tarim Basin, NW China |
| BAO Jianping,YANG Xi,ZHU Cuishan |
| Fig. 3. Distribution of terpanes (m/z 191) and steranes (m/z 217) in the typical crude oil samples from the Tazhong uplift (C21T, C23T and C29T and C30T refer to C21, C23, C29 and C30 tricyclic terpanes; C21-22 refers to short side chain steranes, C29H-C35H represent hopanes; Ts and Tm refer to 18α(H) and 17α(H)-22,29,30-trisnorhopanes; C27R, C28R and C29R refer to C27-29 5α(H), 14α(H), 17α(H)-20R steranes; G refers to gammacerane). (a) TZ11, S, 4301.00-4307.00 m; (b) TZ113, S, 4525.35-4671.42 m; (c) TZ 74, O, 4683.40-4699.05 m; (d) TZ 122, O, 4631.88-4733.92 m. |
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