| Diagenetic and Catagenetic Transference of Noble Metal Elements in Lower Cambrian Black Rock Series, Southwest China |
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| 作者姓名： | Li Shengrong Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology China University of Geosciences Ministry of Education Beijing China Gao Zhenmin Institute of Geochemistry Chinese Academy of Sciences Guiyang China Shen Junfeng Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology China University of Geosciences Ministry of Education Beijing China |
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| 作者单位： | Li Shengrong Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology，China University of Geosciences，Ministry of Education，Beijing 100083，China Gao Zhenmin Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China Shen Junfeng Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology，China University of Geosciences，Ministry of Education，Beijing 100083，China |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划)，China Geological Survey |
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| 摘 要： | INTRODUCTIONPlatinum group element (PGE)oredepositsofmag maticliquationoriginwereidentifiedtobethemaintype ,oreventheonlytypeofPGEoredeposits .Theorebodiesoc curdirectlyintheultramafic maficigneousrocksorthecon tactzonebetweentheigneousrocksandtheirwall rocks .Theformingtemperatureofthedepositswasabout 4 0 0 - 5 0 0℃orevenhigher.Foralongtime ,therefore ,ithadbeenconsideredthattheenrichment,mineralizationandtransfer enceofPGEcouldonlyoccurinultramafic maficigneousrocksathightemperature…
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| 关 键 词： | 寒武纪 白金 银 贵州 |
Diagenetic and Catagenetic Transference of Noble Metal Elements in Lower Cambrian Black Rock Series, Southwest China |
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| Li Shengrong Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology,China University of Geosciences,Ministry of Education,Beijing ,China Gao Zhenmin Institute of Geochemistry,Chinese Academy of Sciences,Guiyang ,China Shen Junfeng Key Laboratory of Lithospheric Tectonics and Lithoprobing Technology,China University of Geosciences,Ministry of Education,Beijing ,China.Diagenetic and Catagenetic Transference of Noble Metal Elements in Lower Cambrian Black Rock Series, Southwest China[J].Journal of China University of Geosciences,2004,15(1):84-90. |
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| Authors: | Li Shengrong Gao Zhenmin Shen Junfeng |
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| Abstract: | Some extraditional types-black rock series types of platinum group element (PGE), gold and silver mineralization occurrences were found in the Lower Cambrian in Guizhou and Hunan provinces of southwest China where PGE concentration reaches more than 800×10-6. Sea floor hydrothermal fluid eruption was suggested to have been the main origin of the ore-forming materials. The whole process from the sedimentation to the redistribution of the ore-forming elements occurred on the conditions of intermediate to weak alkaline, weak reduction to weak oxidation. The temperature for the sedimentation and redistribution of the ore-forming elements was lower than 210 ℃. At such a low temperature, inert elements such as PGE, Au and Ag could quite easily be remobilized. |
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| Keywords: | transference of platinum group elements diagenetic and catagenetic periods black rock series China |
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