宁蒗地区铜厂河铜矿控矿条件与热液成矿模式探讨  

Minerogenetic condition and hydrothermal mineralization model of Tongchanghe copper deposit in Ninglang area

作　　者：郭文平[1] 胡受权[1] 徐旃章[2] 张寿庭[2] 

机构地区：[1]中山大学地球科学系,广东广州510275 [2]成都理工学院地质学系,四川成都610059

出　　处：《火山地质与矿产》2001年第3期199-205,共7页Volcanology & Mineral Resources

摘　　要：宁蒗地区铜厂河铜矿系喜山期隐伏斑岩体外接触带玄武岩系热液型铜矿床 ,其主要含矿、赋矿层位为上二叠统玄武岩组 (P2 β)与黑泥哨组 (P2h)玄武岩系 ,主干控矿构造为南北向断裂体系。矿区NWW向F1断裂为阻矿构造 ,铜矿化均产于其下盘 (南盘 ) ;NE向F2 、F3 断裂将本区分成三个不同矿化特征的矿段。通过对矿区铜矿的碳、氧、硫等稳定同位素和包裹体分析及成矿热液演化特征探讨 。Tongchanghe copper deposit in Ninglang area belongs to hydrothermal copper deposit,developing in basaltic formation outer contact zone of Himalayan blind porphyry body.The major ore bearing beds are located basaltic formation of P 2β 3 and P 2h in Ninglang area.The orebodies are mainly controlled by NS trending fault system.Copper orebodies resided on lower wall(southern wall) of NWW trending fault F 1 in mining district.The mining district is divided into three different mineralized sections by NE trending fault F 2 and F 3.Minerogenetic model of Tongchanghe hydrothermal copper deposit is established based on studying the features of stable isotopes(including C,O,S,etc.)and enclosures and the characteristics of minerogenetic hydrothermal evolution.

关 键 词：宁蒗地区 控矿条件 成矿热液 成矿模式 铜矿床 稳定同位素 包裹体 

分 类 号：P618.41[天文地球—矿床学]