综合物探在云南邦东尖山铜铅矿区的应用研究  

Application study of integrated geophysical prospecting methods in Bangdong-Jianshan copper-lead mining area of Yunnan

作　　者：杨锁[1] 魏海民 李星 高明山[1] YANG Suo;WEI Haimin;LI Xing;GAO Mingshan(Nuclear Industry No.247 Brigade,Tianjin North China Geological Exploration Bureau,Tianjin 301800,China;Yunnan Metallurgical Resources Co.,Ltd.,Kunming 655000,Yunnan,China)

机构地区：[1]天津华北地质勘查局核工业二四七大队,天津301800 [2]云南冶金资源股份有限公司,云南昆明655000

出　　处：《矿产与地质》2020年第2期309-316,共8页Mineral Resources and Geology

摘　　要：为更好地在云南邦东尖山铜铅矿区开展找矿工作,为钻探施工提供依据,在该矿区开展了双频激电法(DFIP)和音频大地电磁法(AMT)。根据激电扫面的结果,圈定了有利找矿靶区,在此基础上,利用AMT测深,结合工作区相关地质资料,初步划定了矿致异常在深部空间内的延伸。通过双频激电法推测出有利找矿靶区3个,在这3个靶区进行AMT测深验证,推断出与控矿构造有关且具有较好容矿条件的3个异常。研究表明:综合物探推断成果与地质钻探揭示信息吻合度较高,在本矿区应用综合物探方法效果良好。通过总结该区综合物探方法找矿经验,对邦东地区利用物探寻找同类型矿床具有指导意义。In order to better carry out the prospecting work in copper-lead deposit in Bangdong-Jianshan area,Yunnan province,and to provide the basis for the drilling project,the dual-frequency induced polarization method(DFIP)and audio magnetotelluric method(AMT)are carried out in the mining area.Based on the result of DFIP survey,the favorable prospecting target areas were delineated.On this basis,the extension of mineralized anomaly in the deep space was preliminarily determined by using AMT sounding method and relevant geological data in the working area.Three favorable ore-prospecting target areas were inferred by DFIP,and three anomalies related to ore-controlling structures and favorable ore-bearing condition were inferred to be circled out through AMT sounding verification method in these three target areas.The research shows that the comprehensive geophysical inference results are in a good agreement with the information revealed by the geological prospecting and drilling holes.The comprehensive application of geophysical methods is effective in the mining area.The summary of the application experience of several geophysical methods in this mine might have a guiding significance to explore for the same type deposit with the geophysical methods in Bangdong area.

关 键 词：铜铅矿区 双频激电法 音频大地电磁法 有利找矿靶区 云南 

分 类 号：P631[天文地球—地质矿产勘探] P618.41[天文地球—地质学]