浅析西藏自治区舍索铜矿床地质特征及成矿过程  

Analysis on geological characteristics and ore-forming processes of copper deposit of Shesuo in Tibet autonomous region

作　　者：孙建东[1] 孙燕[1] 张林[1] 赵涵[1] 程超杰[1] 周丽芹[1] 

机构地区：[1]成都理工大学,四川成都610059

出　　处：《四川有色金属》2011年第2期11-16,共6页Sichuan Nonferrous Metals

摘　　要：舍索铜矿床位于昂龙岗日—班戈退化弧,矿体产于下白垩统郎山组第一岩性段灰岩、大理岩与石英闪长岩、花岗闪长岩接触带及围岩,断续分布于岩体与矽卡岩内外接触带及围岩层间破碎带中,划分为I、Ⅱ、Ⅲ号铜矿体及14个铜矿化体,呈脉状、透镜状、似层状、不规则状展布。据矿物组合及穿插关系分析,将成矿过程划分为两个成矿期五个矿化阶段,其矿床成因类型为矽卡岩型铜矿床,成矿年龄为116Ma[1,2],属燕山晚期产物。Shesuo copper bed is located in the AngLonggang Day-Bangor degradation arc.The orebody is lies among the limestone,marble and quartz flash long rocks and granodiorite contact belt and surrounding rock of the first litho logic section of the lower cretaceous Langshan group,Showing as nervation and lenticular shapes,lay-like structures and irregular exhibition cloth,it is distributed discontinuously in Skarn internal and external contact belt and confining rock fracture zone and is classified as 3 copper bodies of I,Ⅱ,Ⅲ and 14 copper mineralization bodies.According to the mineral composition and interwoven relationship,the ore-forming process is divided into two metallogenic epochs and five mineralization stages,The bed resulted from skarn type copper deposits with an ore-forming age of 116Ma,which belongs to the late Yanshan Period.

关 键 词：西藏 舍索 铜矿床 地质特征 成矿过程 

分 类 号：P618.5[天文地球—矿床学]