西藏多龙矿集区发现浅成低温热液型铜(金银)矿床  

Discovery of the Epithermal Deposit of Cu(Au-Ag) in the Duolong Ore Concentrating Area,Tibet

作　　者：唐菊兴[1] 孙兴国 丁帅[3] 王勤[3] 王艺云[3] 杨超[1] 陈红旗 李彦波 李玉彬 卫鲁杰 张志[3] 宋俊龙[3] 杨欢欢[3] 段吉琳[5] 高轲[3] 方向[3] 谭江云 

机构地区：[1]中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点实验室,北京100037 [2]西藏金龙矿业股份有限公司,西藏拉萨850000 [3]成都理工大学,四川成都610059 [4]西藏自治区地质矿产勘查开发局第五地质大队,青海格尔木816000 [5]中国地质大学(北京),北京100083 [6]西藏自治区地质矿产勘查开发局第六地质大队,西藏拉萨851400

出　　处：《地球学报》2014年第1期6-10,共5页Acta Geoscientica Sinica

基　　金：国家自然科学基金项目(编号:41172077);国家973项目(编号:2011CB403103);中国地质调查局青藏高原专项项目(编号:12120113037400);中铝资源西藏金龙矿业股份有限公司项目(编号:XZJL-2013-JS03)联合资助

摘　　要：根据2013年最新勘查成果、详细的地质编录，对西藏多龙铜金矿集区铁格龙南（荣那）铜（金银）矿床地质特征、矿床类型进行了初步研究，认为该矿床是斑岩．浅成低温热液成矿系统的产物，是典型的高硫型浅成低温热液矿床。矿床规模巨大，矿石中发育条带状、层纹状、皮壳状、致密块状明矾石、地开石，深部发育黄铁绢英岩化，黄铁矿的含量为3％～35％，矿石矿物由铜蓝、蓝辉铜矿、硫砷铜矿、斯硫铜矿、雅硫铜矿、久辉铜矿、斜方蓝辉铜矿、斑铜矿、黝铜矿、黄铜矿等组成。综合研究表明，推断浅部或外围发育独立的高硫型浅成低温热液型金矿，深部存在斑岩型铜（金银）矿体。该矿体的发现结束了西藏至今没有发现典型浅成低温热液矿床的历史，对区域找矿具有极其重要的指导意义。According to the latest survey results and detailed geological records in 2013, as well as some preliminary study about geological features and deposit type of south Tiegelong （Rongna） copper （gold-silver） deposit which located in Duolong copper （gold） ore concentration area, we believe that it is a porphyry related epithermal deposit. It is a typical high sulfidation epithermal deposit. Rongna is a huge Cu（Au-Ag） deposit. Here exist various attitudes of alunite and dickite, that is, typical banded, layered, crusty or massive ones and etc. Phyllic exists in the deep. The content of pyrite is 3% to 35%. Ore minerals consist of covellite, digenite, enargite, spionkopite, yarrowit, djurleite, anilite, bornite, tetrahedrite, chalcopyrite and other components. Comprehensive study has shown that there is an inferred high sulfidation epithermal deposit in the superficial or peripheral, and a porphyry copper （gold and silver） orebody in the deep. The discovery of south Tiegelong is brilliant which actually is an epithermal deposit. It has brought us a new chapter to find epithermal deposit in Tibet which is never an imaginable type here ever. This is quite significant for regional prospecting because it can give extremely meaningful implications for surveies.

关 键 词：浅成低温热液矿床 斑岩型 高硫型 西藏铁格龙南 

分 类 号：P618.41[天文地球—矿床学] P611.13[天文地球—地质学]