音频大地电磁法和频谱激电法在黔西北某铅锌矿探测中的应用研究  

Application of Audio Magnetotelluric Method and Spectrum Induced Polarization Method in the Detection of a Lead-Zinc Mine in Northwest Guizhou

作　　者：韩姚飞 杨炳南[1] 张德全[1] 李树林 HAN Yao-fei;YANG Bing-nan;ZHANG De-quan;LI Shu-lin(The 103 Geological Brigade of Guizhou Bureau of Geology and Mineral Resources Exploration and Development,Tongren Guizhou 554300,China)

机构地区：[1]贵州省地质矿产勘查开发局一○三地质大队,贵州铜仁554300

出　　处：《西部探矿工程》2020年第12期89-94,共6页West-China Exploration Engineering

基　　金：贵州省科学技术厅“贵州省深部锰矿地球物理精细探测新技术研发”(合同编号:黔科合支撑[2019]2868号)资助。

摘　　要：黔西北铅锌成矿区具备寻找中、大型矿床的潜力。根据矿区地质背景和岩矿石电性特征,开展音频大地电磁法和频谱激电法测深,结合地质相关资料,查明该区岩矿体在深部空间上的电性特征,矿体的异常响应特征,划定构造格局,寻找深部隐伏矿体,突破找矿瓶颈。研究结果表明:两种物探方法在该区取得了良好的工作效果,并通过钻孔验证见矿,验证了电磁方法在寻找深部隐伏铅锌矿体中的有效性,该方法可以为同模式铅锌矿攻深找盲提供技术支撑。The lead-zinc deposit in northwestern Guizhou has the potential to find medium and large deposits.According to the geological background of the mining area and the electrical characteristics of the rock and ore,audio frequency magnetotelluric and spectral polarization method soundings were carried out,combined with relevant geological data,to determine the electrical characteristics of the rock and ore body in the deep space and the abnormal response of the ore body Characteristics,delineate the structural pattern,find deep hidden ore bodies,and break through the bottleneck of prospecting.The research results show that the two geophysical methods have achieved good working results in the area,and the mines have been verified by drilling to verify the effectiveness of the electromagnetic method in finding deep hidden leadzinc ore bodies.The method can be the same model of lead Zinc mines provide technical support by finding the blind.

关 键 词：铅锌矿 音频大地电磁法 频谱激电法 黔西北 

分 类 号：P631[天文地球—地质矿产勘探]