西藏江达县仁达铜(铁)矿床地质特征  

Geological characteristics of the Renda copper(iron) deposit in Jiangda County, Tibet,China

作　　者：蒋勇 龙训荣[1] JIANG Yong;LONG Xun-rong(College Of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学地球科学学院

出　　处：《世界有色金属》2019年第13期120-120,122,共2页World Nonferrous Metals

摘　　要：西藏江达县仁达铜(铁)矿床位于三江地区,大地构造上属于羌塘—三江构造区中的次级构造单元即江达—德钦岩浆弧构造单元。该区域成矿条件优越,矿产资源丰富。矿区出露地层为上三叠统洞卡组,赋矿位置为上三叠统洞卡组二段的灰岩与晚三叠世侵入的花岗岩的外接触带上。通过对研究区的矿区、矿床地质特征进行分析,并进一步总结归纳矿区地质特征、控矿因素以及找矿标志,认为仁达铜(铁)矿床属于接触交代型(矽卡岩型)铜(铁)矿床。The Renda copper(iron)deposit in Jiangda County,Tibet is located in the Sanjiang area.The geotectonic structure belongs to the secondary tectonic unit in the Qiangtang-Sanjiang structural area,namely the Jiangda-Deqin magmatic arc structural unit.The area has excellent ore-forming conditions and rich mineral resources.The exposed strata in the mining area are the Upper Triassic Dongka Formation,and the ore-bearing location is the limestone of the second member of the Upper Triassic Dongka Formation and the outer contact zone of the Late Triassic intrusive granite.Through the analysis of the geological characteristics of the mining area and deposits in the study area,and further summarizing the geological characteristics,ore-controlling factors and prospecting indicators of the mining area,it is considered that the Renda copper(iron)deposit belongs to the contact metasomatic(skarn type)copper(iron).)Mineral deposits.

关 键 词：仁达铜(铁)矿床 构造单元 洞卡组 地质特征 接触交代型 

分 类 号：P618.2[天文地球—矿床学]