西藏谢通门县雄村铜(金)矿蚀变特征及成因探讨  

A discussion on the alteration features and genesis of the Xiongcun Cu(Au) deposit in Xietongmen County,Tibet,China

作　　者：陈渊[1] 唐菊兴[2] 孙传敏[1] 郎兴海 黄勇[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]中国地质科学院矿产资源研究所,北京100037 [3]西藏天圆矿业资源开发有限公司,西藏日喀则857000

出　　处：《成都理工大学学报（自然科学版）》2008年第3期303-308,共6页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：加拿大HDI风险勘查项目(2006-089);中国地质调查局综合研究项目(1212010535804);国家科技支撑计划项目(2006BAB01A01)

摘　　要：西藏谢通门县雄村铜(金)矿是新发现的位于冈底斯中段的大型铜(金)矿床。其矿化围绕含眼球状石英斑晶的角闪石石英闪长玢岩及其环带状蚀变带分布。薄片研究表明:矿体由内至外主要发育钾硅酸盐化、强烈硅化、绢云母红柱石次生石英岩化和黄铁绢英岩化蚀变,形成了大范围的矿化。雄村铜(金)矿与矿区北西向构造带上多处矿体的特征相似,为一由角闪石石英闪长玢岩杂岩体侵入而形成的斑岩型铜(金)矿床。The Xiongcun Cu-Au deposit is a newly discovered large Cu-Au deposit which lies in the middle of the Gandise belt. The mineralization and the alteration types are clearly distributed around the hornblende quartz diorite porphyry intrusion. According to the study of thin sections, from the interior to the edge of the orebody, there are mainly K-silicate alteration, andalusite secondary quartzitization and beresitization, forming large areas of mineralization. Similar to the other orebodies lying along the northwest tectonic belt, the Xiongcun orebody is a porphyry Cu （Au） deposit consisting of a hornblende quartz diorite complex.

关 键 词：西藏 谢通门 雄村 蚀变特征 斑岩铜矿 

分 类 号：P618.41[天文地球—矿床学]