CHEN Wen-bin1,2, YI Hai-sheng1, TAN Fu-wen2, LIAO Zhong-li2, FU Xiu-gen2, DU Bai-wei2, FENG Xin-lei2. Carbon isotope characteristics of the components of chloroform bitumen 'A' of Jurassic hydrocarbon source rocks in south Qiangtang basin[J]. Geology in China, 2010, 37(6): 1740-1746.
Citation: |
CHEN Wen-bin1,2, YI Hai-sheng1, TAN Fu-wen2, LIAO Zhong-li2, FU Xiu-gen2, DU Bai-wei2, FENG Xin-lei2. Carbon isotope characteristics of the components of chloroform bitumen "A" of Jurassic hydrocarbon source rocks in south Qiangtang basin[J]. Geology in China, 2010, 37(6): 1740-1746.
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Carbon isotope characteristics of the components of chloroform bitumen "A" of Jurassic hydrocarbon source rocks in south Qiangtang basin
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1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, Sichuan, China; 2. Chengdu Institute of Geology and Mineral Resources, Chengdu 610081, Sichuan, China
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Abstract
Abstract:Studies show that the carbon isotopic characteristics of the components of chloroform bitumen “A” in Jurassic hydrocarbon source rocks were mainly affected by parent materials and sedimentary environments in Jurassic in south Qiangtang basin. For the components of chloroform bitumen “A” in Xiali Formation hydrocarbon source rocks, the carbon isotopic compositions are usually relatively heavy, while for the components of chloroform bitumen “A” in Buqu Formation hydrocarbon source rocks, the carbon isotopic compositions are usually comparatively light. In addition, the carbon isotopes commonly show reverse phenomenon, and the reversal of δ13C in Xiali Formation source rocks finds expression in the sequence of saturated hydrocarbons asphaltenes> saturated hydrocarbons> aromatic hydrocarbons, mainly related to biological degradation.
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