湘西沃溪钨锑金矿床成矿的独特性  

MINEROGENIC PARTICULARITY OF WOXI W-Sb-Au DEPOSIT IN WEST HUNAN

作　　者：陈明辉 杨洪超 娄亚利 包正相 鲍珏敏 

机构地区：[1]湖南省有色地质勘查局245队,湖南吉首416007 [2]湘西州矿产资源综合研究发展中心,湖南吉首416000

出　　处：《地质找矿论丛》2008年第1期32-35,42,共5页Contributions to Geology and Mineral Resources Research

摘　　要：沃溪钨锑金矿床位于NE向雪峰弧形构造带向北西凸出的转折部位东段,赋存于新元古界板溪群马底驿组紫红色板岩中,产在沃溪近EW向低角度拆离断层下盘沿层发育的层间剪切断裂系统,以层间石英脉型矿体为主,矿化作用在时间上和空间上具有一定的分带性和规律性。矿体沿倾向延深大于走向延长数倍至10余倍,并普遍存在侧伏延伸的规律。杂多酸络合物作为W,Sb,Au成矿组合的共同载体,使它们共同进入热液地球化学迁移,并生成钨锑金共生组合的金矿床,成为重要的成矿地球化学机制。Woxi W-Sb-Au deposit is situated at the bossy part of the NE Xuefeng arc where the arc turns to NW and hosted by purple slate of Proterozoic Banxi group occuring as quartz veins in the interlayer shearing system at lower plate of a gentle detachment fault. Mineralization is zoned timely and spatially and distributed regularly. Ore bodies extend along dip as several times even about 10 times as along strike, and they extend in the plunging direction. W-Sb-Au was mobiled geochemically, in multi complexes with hydrothermal fluid.

关 键 词：沃溪钨锑金矿 地质特征 成矿独特性 湘西 

分 类 号：P611[天文地球—矿床学] P618.51[天文地球—地质学]