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Diversity of Mineralization and Spectrum of the Gejiu Superlarge Tin-Copper Polymetallic Deposit,Yunnan,China 被引量:10
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作者 张寿庭 夏庆霖 +1 位作者 赵鹏大 高阳 《Journal of China University of Geosciences》 SCIE CSCD 2008年第4期363-370,共8页
The Gejiu (个旧) deposit is a superlarge tin-copper polymetallic ore-forming concentration area characterized by excellent metallogenic geological settings and advantageous ore-controlling factors. The deposit displ... The Gejiu (个旧) deposit is a superlarge tin-copper polymetallic ore-forming concentration area characterized by excellent metallogenic geological settings and advantageous ore-controlling factors. The deposit displays diverse mineralization properties due to different minerals and mineral deposit types. Based on the principal metallogenic factors, metallogenic mechanisms, mineralized components, and occurrence of mineral deposits or ore bodies, the Gejiu mineral district can be divided into 2 combinations of metallogenic series, 4 metallogenic series, 8 subseries, and 27 mineral deposit types. Spatial zonality is evident. The distribution regularity of the elements in both plane and section is Be-W, Sn (Cu, Mo, Bi, Be)-Sn, Pb, Ag-Pb, Zn around a granitic intrusion. The metallogenic epoch is mainly concentrated in the late Yanshanian. During this period, large-scale metallogenic processes related to movement caused by tectonics and magmatism occurred, and a series of magmatic hydrothermal deposits formed. The ore-forming processes can be divided into 4 stages: the silicate stage, the oxide stage, the sulphide stage, and the carbonate stage. Based on the orderliness and diversity (in terms of time, space, and genesis) of the mineralization, the authors have developed a comprehensive spectrum of ore deposits in the Gejiu area. This newly proposed diversity of mineralization and the spectrum developed in this work are useful not only for interpreting the genesis of the Gejiu deposit but also for improving mineral exploration in the area, and in particular, for finding large deposits. 展开更多
关键词 tin-copper polymetallic deposit mineralization diversity spectrum of ore deposit Gejiu
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个旧老卡岩体凹陷带岩矿特征与成矿机理分析 被引量:3
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作者 欧阳恒 彭省临 +2 位作者 谷湘平 杨斌 邵拥军 《矿产与地质》 2014年第1期88-92,共5页
对云南个旧矿田的典型控矿地带——老卡岩体凹陷带内的矿化特征、岩相学及矿相学特征和流体包裹体进行分析,进一步研究花岗岩凹陷带的成矿机理。研究认为变玄武岩中普遍发育的金云母化是导致变玄武岩型矿床中锡矿化与金属硫化物伴生的... 对云南个旧矿田的典型控矿地带——老卡岩体凹陷带内的矿化特征、岩相学及矿相学特征和流体包裹体进行分析,进一步研究花岗岩凹陷带的成矿机理。研究认为变玄武岩中普遍发育的金云母化是导致变玄武岩型矿床中锡矿化与金属硫化物伴生的原因之一,凹陷带内带所见的金云母化和绢云母化都与成矿有着密切的关系。花岗岩凹陷带的成矿作用经历了花岗岩侵位、花岗岩叠加改造玄武岩内的"矿胚"、花岗岩蚀变、矿化沉淀这四个过程。 展开更多
关键词 老卡岩体凹陷带岩 金云母 绢云母 锡-铜矿床 个旧
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