综合物探方法在黔西北某铅锌矿勘查中的应用  

The application of comprehensive geophysical prospecting method to exploring a certain zinc and lead deposit in northwest Guizhou Province

作　　者：闫维华 刘永锋[1] 游连强[1] 

机构地区：[1]贵州省地质矿产勘查开发局一〇四地质大队,贵州都匀558000

出　　处：《物探与化探》2016年第4期688-694,共7页Geophysical and Geochemical Exploration

基　　金：中国地质调查局地质矿产综合调查项目(12120113052700)

摘　　要：黔西北某铅锌矿区位于乌蒙山区中部,结合其成矿背景,根据区内100~800 m不同深度铅锌矿的矿体特征,选择激电中梯扫面、激电三极测深以及使用两种不同探测深度的设备（EH-4与V8）进行音频大地电磁测深等不同的物探方法组合,推测了物探异常,指导地质施工了10个钻孔,均见到了工业矿体,扩大了矿区铅锌矿资源量。根据本次综合物探方法的应用效果,提出了针对本区不同类型的铅锌矿勘查所对应的综合物探方法,对下一步找矿突破起到了一定的作用。A certain mining area is located in the middle of Wumeng Mountain area in northwestern Guizhou Province,which belongs to a contiguous special poverty-stricken area. In combination with the lead-zinc metallogenic background as well as the orebody characteristics in different depths（ 100 ~ 800 m）,the authors chose the combination of such geophysical techniques as IP ladder sweeping,IP three pole sounding and audio-frequency magnetotellurics（ utilizing two detecting devices for different depths,EH-4 and V8）,deduced geophysical anomalies and guided the deployment of 10 drill holes,which all intersected industrial orebodies,thus expanding the lead-zinc reserves in the mining area. According to the application effect of the comprehensive geophysical prospecting method,the authors put forward some comprehensive geophysical prospecting methods which can tackle corresponding types of lead-zinc deposits in this area,thus providing guidance for further geological prospecting breakthrough.

关 键 词：铅锌矿 激发极化法 音频大地电磁测深 EH-4 V8多功能电法仪 

分 类 号：P631[天文地球—地质矿产勘探]