| Bio-organic Geochemical Characteristics of Gold Deposits in Northwestern Guangxi and Their Metallogenetic Significance |
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| 作者姓名： | Zhang Aiyun Xiao Jianxin Weng Chengmin |
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| 作者单位： | Zhang Aiyun Xiao Jianxin Weng ChengminDepartment of Geology and Energy Resources，China University of Geosciences，Beijing 100083 |
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| 基金项目： | The paper is supported by the National Natural Science Foundation of China |
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| 摘 要： | The gold deposits of Triassic period in the northwestern Guangxi are all located in the marine, fine-grained ,fragmental rock series containing organic matter , i.e. the distribution districts of black rock series . The fine-grained gold deposits occur in organic matter-bearing C, D, E, or D, E divisions of the classical Bouma sequences. The evolution degree of organic matters through oil window stage reached the over-mature degree. Both the bio-sources of the organic matters and the distribution of gold in the organic matters disclose the close association between gold, living beings and organic matters. The thermal evolution of organic matters led to the gold to be activized , migrated and enriched , and finally formed gold deposits in the fault belt and crushed zone of black rock series.
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Bio-organic Geochemical Characteristics of Gold Deposits in Northwestern Guangxi and Their Metallogenetic Significance |
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| Zhang Aiyun,Xiao Jianxin,Weng Chengmin.Bio-organic Geochemical Characteristics of Gold Deposits in Northwestern Guangxi and Their Metallogenetic Significance[J].Journal of China University of Geosciences,1995(2). |
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| Authors: | Zhang Aiyun Xiao Jianxin Weng Chengmin |
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| Institution: | Zhang Aiyun Xiao Jianxin Weng ChengminDepartment of Geology and Energy Resources,China University of Geosciences,Beijing 100083 |
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| Abstract: | The gold deposits of Triassic period in the northwestern Guangxi are all located in the marine, fine -grained ,fragmental rock series containing organic matter ,i.e .the distribution districts of black rock series . The fine-grained gold deposits occur in organic matter -bearing C, D,E,or D,E divisions of the classical Bouma sequences. The evolution degree of organic matters through oil window stage reached the over -mature degree. Both the bio-sources of the organic matters and the distribution of gold in the organic matters disclose the close association between gold , living beings and organic matters . The thermal evolution of organic matters led to the gold to be activized . migrated and enriched , and finally formed gold deposits in the fault belt and crushed zone of black rock series . |
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| Keywords: | fine-grained disseminated gold deposit bio- organic geochemistry metallogenetic significance northwestern Guangxi |
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