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Geological significance of nickeliferous minerals in the Fule Pb–Zn deposit, Yunnan Province, China

查看全文 作　　者：Zhenli [1,2]Li;Lin [1]Ye;Yusi [1,2]Hu;Zhilong [1]Huang 高影响力作者 机构地区：[1]State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences,Guiyang 550002, China;[2]University of Chinese Academy of Sciences, Beijing 100049,China高影响力机构 出　　处：《Acta Geochimica》索引2018年第37卷第5期,共7页高影响力期刊 基　　金：supported by the National ‘973 Project’(No.2014CB440900);the State Key Program of National Natural Science Foundation of China(No.41430315);the National Natural Science Foundation of China(Grant No.41173063) 摘　　要：The Fule Pb–Zn deposit is located in the Sichuan–Yunnan–Guizhou Province, and it is an important and giant low temperature metallogenic domain in China.In our research area, the Pb–Zn deposits are mainly hosted in the Permian Yangxin Formation and are composed of dolostone and limestone. The distance between the ore bodies and the Permian Emeishan basalt ranged from 50 to160 m. In this study, the nickel rich minerals, including vaesite, polydymite and millerite, were reported for the first time in the Fule deposit. These minerals occurred as xenomorphic mineral aggregate and were sporadically distributed in the sphalerite–galena–calcite vein, which is the main ore type in the deposit. Our study indicated that the paragenetic sequence of minerals in the Fule deposit is the following order: polydymite → vaesite→ millerite → sphalerite → galena → tetrahedrite(tennantite).The geological occurrence characteristics of those nickeliferous minerals suggested that the Permian Emeishan basalt is a possible barrier layer of Pb–Zn ore-forming fluid, and it is an important source for the Ni and part of the Cu in the deposit. The Sichuan–Yunnan–Guizhou Pb–Zn mineralization province is a world-class production base of Pb and Zn, in which the Permian Emeishan basalt and Pb–Zn deposits have uniformly spatial distribution, but the relationship of mineralization between them is still under debate. This report provides new evidence forunderstanding the relationship between Pb–Zn mineralization and Permian Emeishan basalt in the Sichuan–Yunnan–Guizhou Pb–Zn mineralization province. 关 键 词：沉积物 矿物质 云南省 ZN 地质 中国 矿石类型 矿化作用
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