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南羌塘侏罗系烃源岩氯仿沥青“A”组分碳同位素特征

陈文彬, 伊海生, 谭富文, 廖忠礼, 付修根, 杜佰伟, 冯兴雷

陈文彬, 伊海生, 谭富文, 廖忠礼, 付修根, 杜佰伟, 冯兴雷. 南羌塘侏罗系烃源岩氯仿沥青“A”组分碳同位素特征[J]. 中国地质, 2010, 37(6): 1740-1746.
引用本文: 陈文彬, 伊海生, 谭富文, 廖忠礼, 付修根, 杜佰伟, 冯兴雷. 南羌塘侏罗系烃源岩氯仿沥青“A”组分碳同位素特征[J]. 中国地质, 2010, 37(6): 1740-1746.
CHEN Wen-bin, YI Hai-sheng, TAN Fu-wen, LIAO Zhong-li, FU Xiu-gen, DU Bai-wei, FENG Xin-lei. 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-bin, YI Hai-sheng, TAN Fu-wen, LIAO Zhong-li, FU Xiu-gen, DU Bai-wei, FENG Xin-lei. 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.

南羌塘侏罗系烃源岩氯仿沥青“A”组分碳同位素特征

Carbon isotope characteristics of the components of chloroform bitumen "A" of Jurassic hydrocarbon source rocks in south Qiangtang basin

  • 摘要: 提要:对南羌塘侏罗系布曲组和夏里组烃源岩氯仿沥青“A”组分碳同位素分析表明,碳同位素主要受有机母质及沉积环境影响,夏里组烃源岩氯仿沥青“A”组分的碳同位素较重,而布曲组烃源岩氯仿沥青“A”中族组分的碳同位素组成相对较轻。并且它们普遍存在碳同位素逆转现象,夏里组烃源岩氯仿沥青“A”组分的碳同位素逆转表现为:δ13C饱和烃<δ13C非烃<δ13C芳烃<δ13C沥青质,主要受有机质母源控制;布曲组烃源岩氯仿沥青“A”组分的碳同位素逆转表现为:δ13C非烃>δ13C沥青质>δ13C饱和烃>δ13C芳烃,主要与生物降解作用有关。
    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 < non-hydrocarbons < aromatics < asphaltenes, mainly controlled by organic matters, whereas the reversal of δ13C in Biqu Formation source rocks finds expression in the sequence of non-hydrocarbon>asphaltenes> saturated hydrocarbons> aromatic hydrocarbons, mainly related to biological degradation.
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  • 刊出日期:  2010-12-24

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