西藏仁达铜金矿床地质特征及成因初论  

The discussion about geological characteristics and genesis of Ren Da copper and gold deposits in Tibet

作　　者：张勇强[1] 钟康惠[1] 刘珂辛[1] 郑凡石[1] 聂国永[1] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059

出　　处：《四川有色金属》2013年第1期9-12,58,共5页Sichuan Nonferrous Metals

摘　　要：仁达铜金矿床位于三江弧盆系的治多-江达-维西-绿春陆缘弧带内,矿区出露的地层主要为上三叠统地层公也弄组(T3g),岩性主要为结晶灰岩、生物碎屑灰岩;矿区出露的侵入岩主要为晚三叠世的花岗岩和早-中侏罗世的二长花岗岩。该矿床受地层、岩性及构造破碎带的控制,其中公也弄组(T3g)是该矿床的含矿地层,矿体主要产于与岩体接触的破碎带内。本文通过介绍了区域地质背景、矿区地质特征及成矿地质作用,初步讨论了仁达铜金矿的成因,认为该矿床属于矽卡岩型矿床。Ren Da copper and gold deposits located in Three-River area arc basin system, where formed in Zhidoi-Jomda- Weixi-Lvchun Continental margin arc zone. The emergence stratum mainly is Gong Yenong group in Late Triassic （T3g）, and composed of crystalline limestone,bioclastic limestone. The outcropped instrusive rock mainly Late Triassic intrusive granite and early-middle Jurassic monzonitic granite. This deposit formation controlled by strata,lithology and tectonic fracture zone, in the mean time, ore-hosting strata is Gong Yenong group. Ore-body chiefly in fracture zone which contact with rock mass. This paper introduces regional geological background, geological characters and mineralizing processes, author thinks that this belongs to Skarn type deposit.

关 键 词：仁达铜金矿 公也弄组 矽卡岩型 

分 类 号：P618[天文地球—矿床学]