河南省破山银矿地质特征与成因探讨  

Discussion on geological characteristics and genesis of the broken mountain silver deposit in Henan Province

作　　者：胡伟 徐刚 李俊锋 魏鸿 杨贺杰 方荣 HU Wei;XU Gang;LI Jun-feng;WEI Hong;YANG He-jie;FANG Rong(Henan Provincial Non-ferrous Metals Geological and Mineral Resources Bureau No.3 Geological Team,Zhengzhou 450016,China)

机构地区：[1]河南省有色金属地质矿产局第三地质大队

出　　处：《世界有色金属》2019年第13期1-4,共4页World Nonferrous Metals

摘　　要：河南省桐柏县破山银矿处于秦岭~大别褶皱系,桐柏围山城金银多金属成矿带的西段.矿床赋存在新元古界歪头山组炭质绢云石英片岩中,矿体产出受地层和褶皱构造双重控制,多呈似层状、脉状和透镜状,围岩蚀变以硅化为主。成矿物质主要来自地壳下部或上地幔的海相火山喷发沉积而成的歪头山组地层。成矿过程经历火山~沉积、区域变质、岩浆活动改造以及次生残余富集几个阶段,矿床属层控火山~沉积~变质热液矿床。The Po-Shan silver deposit in Tongbai County,Henan Province is located in the Qinling-Dabie fold system,the western section of the gold-silver polymetallic metallogenic belt of the Tong bai wei shan cheng.The ore deposit is present in the Carboniferous quartz schist of the Wai toushan formation in the Neoproterozoic.The ore body output is controlled by the stratum and fold structure,mostly like layered,veined and lenticular,and the surrounding rock alteration is silicified the Lord.The ore-forming materials are mainly from the Shantoushan Formation formed by the marine volcanic eruption of the lower crust or upper mantle.The ore-forming process undergoes several stages of volcanic-sedimentation,regional metamorphism,magmatic activity modification and secondary residual enrichment.The deposit is a layer-controlled volcanic-deposition-metamorphic hydrothermal deposit.

关 键 词：破山银矿 矿床特征 矿床成因 河南省 

分 类 号：P619.225[天文地球—矿床学]