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. 1. Total ion current of GC-MS of the saturated hydrocarbon fractions in the typical crude oil samples from the Tazhong uplift. (a) TZ 11, Silurian, 4301.00-4307.00 m; (b) TZ 113, Silurian, 4525.35-4671.42 m; (c) TZ 74, Ordovician, 4683.40-4699.05 m; (d) TZ 122, Ordovician, 4631.88-4733.92 m.