西昆仑东段阿羌火山岩成矿类型及成矿潜力分析  

Metallogenic Types and Prospecting Potential of the Aqiang Volcanic Rocks in the Eastern Part of West Kunlun

作　　者：刘铭涛[1] 陈向平 王居松 曹锦元[1] 冯宝山[1] LIU Ming-tao;CHEN Xiang-ping;WANG Ju-song;CAO Jin-yuan;FENG Bao-shan(Tianjin North China Geological Exploration Bureau,Tianjin 300170,China)

机构地区：[1]天津华北地质勘查局,天津300170

出　　处：《有色矿冶》2020年第4期9-12,46,共5页Non-Ferrous Mining and Metallurgy

基　　金：天津市规划和自然资源局科研基金资助"西昆仑东段找矿潜力评价及找矿方法研究"项目,编号:TGPC-2014-D-0239.

摘　　要：阿羌火山岩分布于昆北晚古生代岩浆弧带内,成岩于二叠纪,来源于地幔,形成于裂谷环境,主要为一套基性-中酸性海相火山岩,具双峰式火山岩特征。后经历了绿片岩相变质、强烈韧性剪切变形。在阿羌火山岩内已发现同生顺层产出的塔木其铜锌矿,为火山成因块状硫化物型矿床;多期成矿的苦阿铁金矿,铁矿体是同生矿体,为火山沉积成因,金矿体为后期构造热液活动叠加形成。综合分析阿羌火山岩中可寻找火山成因块状硫化物矿床、火山沉积成因铁矿、蚀变岩型金矿和热液型金铜矿。Aqiang volcanic rocks are distributed in the Late Paleozoic Era magmatic arc belt,which are located in North Kunlun,formed in the Permian rift environment,originating from the mantle,and mainly consisting of a set of basic-acid marine volcanic rocks,with features of bimodal volcanic rocks.Later the rocks underwent greenschist facies metamorphism,intense ductile shearing deformation.Tamuqi copperzinc ore has been found in Aqiang volcano rocks,as the volcano massive sulfide deposit;Kua Iron-Gold deposit is multi-stage mineralization,The iron ore body is syngenetic ore body,and caused the volcanic sediment.The gold mineralization is the superposition of late tectonic hydrothermal activities.Generally,volcanic massive sulfide deposits,volcanic sedimentary iron deposits,altered rock type gold deposits and hydrothermal type gold and copper deposits can be found in Aqiang volcanic rocks.

关 键 词：阿羌火山岩 塔木其铜锌矿 块状硫化物矿床 苦阿铁金矿 后期热液 

分 类 号：P612[天文地球—矿床学]