个旧锡矿阿西寨矿区矽卡岩型硫化矿特征及找矿标志  

THE SKARN SULFIDE DEPOSIT FEATURE AND PROSPECTING CRITERIA OF AXIZHAI OREFIELD OF GEJIU SN DEPOSIT

作　　者：罗健 谭敏 LUO Jian;TAN Min(Honghe Resource Development Company(Ltd),Yunnan Sn Mining,Gejiu 661000)

机构地区：[1]云锡红河资源开发有限责任公司,云南个旧661000

出　　处：《云南地质》2019年第1期87-91,共5页Yunnan Geology

摘　　要：云南个旧锡矿阿西寨矿区矽卡岩型硫化矿为地下隐伏的铜、锡矿床,其矿体呈似层状、透镜状沿燕山期隐伏花岗岩体与三叠系中统个旧组(T_2g)之接触带分布。属花岗岩接触带的矽卡岩型硫化矿床;花岗岩体的侵入形成大量的矽卡岩,同时为区内多金属矿床的形成提供了热源及矿物质来源。岩体围岩蚀变矽卡岩化、云英岩化、硫化物化是主要的找矿标志。It is an underground buried Cu-Sn deposit.The orebody is stratoid,lenticular in the contact between Yanshanian Buried granite body and Middle Triassic Gejiu Formation(T2g),belonging to the skarn sulfide deposit in granite contact.The granite intrusion forms a lot of skarn and provide the heat and material sources for the multimetallic deposit in this area.The main prospecting criteria are the wall rock alteration skarnization,greisenization and sulfidization.

关 键 词：花岗岩 接触带 矽卡岩型矿床 云南个旧 阿西寨 

分 类 号：P618.44[天文地球—矿床学]