刘灵,杨仪锦,李永刚,王朝宗,林泽渊.贵州从江南加地区钨铜多金属矿的成矿规律及成矿模式初[J].贵州地质,2016,33(4):265-271
贵州从江南加地区钨铜多金属矿的成矿规律及成矿模式初
Metallogenic Regularity and Pattern of the Nanjia Tungsten-copper Polymetallic Deposits,Congjiang area,Guizhou Province
  
DOI:
中文关键词:  钨铜多金属矿  成矿规律  成矿模式  贵州从江
英文关键词:Tungsten-copper polymetallic ore  Metallogenic Regularity  Metallogenic pattern  Congjiang
基金项目:2015年度公益性基础性项目(编号:GZ2015-1)。
作者单位
刘灵 贵州省地矿局101地质大队贵州凯里556000 
杨仪锦 贵州省地矿局101地质大队贵州凯里556000 
李永刚 贵州省地矿局101地质大队贵州凯里556000 
王朝宗 贵州省地矿局101地质大队贵州凯里556000 
林泽渊 贵州省地矿局101地质大队贵州凯里556000 
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中文摘要:
      本文通过野外观察和室内研究,分析了贵州从江南加地区钨铜多金属矿的成矿规律,初步建立了成矿模式。南加地区钨矿的形成时代大致相当于雪峰期,铜矿主成矿期可能属于印支—燕山期。钨矿主要是该区雪峰期花岗岩和四堡群鱼西组地层提供成矿物质,而铜矿成矿物质可能来源于围岩花岗岩及深源。该区钨矿床主要分布在花岗岩体与四堡群变质岩的外接触带,受鱼西组中层间破碎带控制,形成部位主要是花岗岩凹陷部位,铜矿床主要分布在花岗岩体内部EW、NW和NNE向断层破碎带中,形成部位主要是花岗岩体顶部凸起部位。
英文摘要:
      Based on observations in the field and studies indoors, the metallogenic regularities of the Nanjia tungsten-copper polymetallic deposits in the Congjiang area are analyzed, and the metallogenic patterns were established initially. The tungsten deposit in the Nanjia area formed in Xufeng Period, whereas the copper deposits may formed in the lndosinan-Yanshanian stage. The granite formed in the Xufeng Period and the Yuxi formation provided the metallogenetic matters for the tungsten deposit, whereas the metallogenetic matters of copper deposits came from surrounding granites and deep focus. In addition, the tungsten deposit in the area formed in the outer contact zones between granite and Sibu Group, and controlled by the interformational fracture zones of Yuxi strata, and located in the sunken region of granite intrusion. In contrast, the copper deposits mainly formed in inner part of granite and located in the convex part of granite intrusion, and distributed in EW、NW and NNE striking fault fracture zones.
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