| Study of the Factors Affecting the Abundance of Organic Matter in Jurassic Carbonate Rocks in Qiangtang Basin, Tibet |
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| 作者姓名： | 文志刚 胡明毅 龚文平 肖传桃 |
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| 作者单位： | ResearchCenterofOrganicGeochemistry,JianghanPetroleumUniversity,Jingzhou434023,China |
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| 基金项目： | ThisworkissupportedbytheChinaPetroleumandNaturalGasCo .(No .QT96YD 0 7) . |
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| 摘 要： | Field and laboratory analyses of carbonate rock samples from the Qiangtang Basin,Tibet, indicate that carbonate source rocks are mainly developed in the Middle Jurassic Xiali Formation and Upper Jurassic Suowa Formation. Comprehensive studies showed that the Suowa Formation carbonate source rocks have a favorable hydrocarbon-generating potential. The abundance of organic matter in the carbonate rocks is controlled mainly by sedimentary environment and inorganic compounds in the rocks, which is higher in the restricted platform facies than in the open platform facies. Organic carbon contents decrease with increasing CaO contents in the source rocks.
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| 关 键 词： | 侏罗纪 碳酸盐岩 岩石成因 有机物 氧化钙 |
| 收稿时间： | 19 December 2002 |
Study of the factors affecting the abundance of organic matter in Jurassic carbonate rocks in Qiangtang Basin,Tibet |
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| Wen?Zhigang,Hu?Mingyi,Gong?Wenping,Xiao?Chuantao.Study of the Factors Affecting the Abundance of Organic Matter in Jurassic Carbonate Rocks in Qiangtang Basin, Tibet[J].Chinese Journal of Geochemistry,2004,23(1):52-56. |
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| Authors: | Wen Zhigang Hu Mingyi Gong Wenping Xiao Chuantao |
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| Institution: | (1) Research Center of Organic Geochemistry, Jianghan Petroleum University, 434023 Jingzhou, China |
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| Abstract: | Field and laboratory analyses of carbonate rock samples from the Qiangtang Basin,Tibet, indicate that carbonate source rocks are mainly developed in the Middle Jurassic Xiali Formation and Upper Jurassic Suowa Formation. Comprehensive studies showed that the Suowa Formation carbonate source rocks have a favorable hydrocarbon-generating potential. The abundance of organic matter in the carbonate rocks is controlled mainly by sedimentary environment and inorganic compounds in the rocks, which is higher in the restricted platform facies than in the open platform facies. Organic carbon contents decrease with increasing CaO contents in the source rocks. |
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| Keywords: | Qiangtang Basin Jurassic carbonate rock organic - carbon content sedi-mentary environment inorganic compound |
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