Polygenetic Mineralization of the Early ProterozoicTongkuangyu Metaporphyry Copper Deposit inthe Zhongtiao Mountains, Shanxi Province |
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| Authors: | CHEN Wenming ZHANG Chengxin LU Jiren DANG Zef |
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| Institution: | CHEN Wenming,ZHANG Chengxin,LU Jiren,DANG Zef,Institute of Mineral Deposits,Chinese Academy of Geological Sciences,Baiwanzhang,Beijing LI Shuping,CUI Wenbin,NING Yuan,and CAO Yongjun Shanxi Institute of Geology and Mineral Resources,Taiyuan,Shanxi |
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| Abstract: | The Tongkuangyu metaporphyry copper deposit formed in the Early Proterozoic is tectonically located in the northern part of the Zhongtiao X -type palaeorift depression, on the southern margin of the North China platform. The genesis of the deposit has long been a hot subject of research of geologists working on mineral deposits. By means of the protolith reconstruction and fluid inclusion and isotope studies of host rocks of the deposits, the authors hold that this deposit is the product of combined exogenic, endogenic and metamorphic processes. Its formation mainly involved the following four stages: (1) the stage of formation of Mg- and Fe-rich tuffaceous variegated cupriferous sand-shale and K-rich biomodal volcanic rocks; (2) the early stage of formation of the metaporphyry copper deposit; (3) the stage of formation of the metaporphyry copper deposit; and (4) the stage of reworking of the metaporphyry copper deposit. |
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| Keywords: | Tongkuangyu metaporphyry copper deposit polygenetic mineralization |
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