吉林省通化县二密铜矿隐爆角砾岩型矿体特征及找矿意义  

The characteristics and prospecting significance of cryptoexplosive Breccia type ore bodies of Ermi copper deposit in Tonghua County,Jilin Province

作　　者：张大伟[1] 薄继荣 娄雪家 王运珍 ZHANG Dawei;BO Jirong;LOU Xuejia;WANG Yunzhen(Bureau of Non-ferrous Geological Exploration of Jilin Province,Changchun 130021,Jilin,China;Institute of Non-ferrous Geological Exploration of Jilin Province,Changchun 130021,Jilin,China;Geophysical Brigade of Nonferrous Geological Exploration Bureau of Xinjiang Uyghur Autonomous Region,Urumqi 830000,Xinjiang,China)

机构地区：[1]吉林省有色金属地质勘查局,吉林长春130021 [2]吉林省有色金属地质勘查院,吉林长春130021 [3]新疆维吾尔自治区有色地质勘查局地球物理探矿队,新疆乌鲁木齐830000

出　　处：《吉林地质》2023年第1期9-14,共6页Jilin Geology

基　　金：吉林省有色金属地质勘查局专项资金项目(JL-JN2021014)。

摘　　要：通化县二密铜矿是一座开采历史悠久的中型矿山,多家地勘单位及学者普遍认为该矿床为斑岩型—脉状热液充填交代型铜矿,对于216矿体、501矿体只有少数专家提出爆发角砾岩筒成矿、浸染型矿体和柱状矿体。本文通过总结角砾岩中团块状矿体特征,认为其矿化范围整体呈筒状,具有明显的分带性,是典型的隐爆角砾岩型矿体。该类型矿体规模小,不容易被发现,但蕴含资源量大,对该区寻找接替资源具有重要的指导意义。Ermi copper deposit in Tonghua County is a medium-sized mine with a long mining history.Many geological prospecting units and scholars generally believe that the deposit is porphyry-vein hydrothermal filling metasomatic copper deposit.For the No.216 and No.501 ore body,only a few experts put forward the explosive breccia tube mineralization,disseminated ore bodies and columnar ore bodies.Based on the summary of the characteristics of the massive ore body in breccia,the authors believes that its mineralization range is tubular in general,with obvious zoning,and it is a typical cryptoexplosive breccia type orebody.This type of ore body is small in scale and is not easily discovered,but it contains a large amount of resources,which has important guiding significance for finding the superseding resources in this area.

关 键 词：二密铜矿 通化县 筒状矿体 隐爆角砾岩 找矿意义 

分 类 号：P618.41[天文地球—矿床学]