综合物探在崤山东部浅覆盖区勘查银多金属矿床中的应用  

The application of geophysical exploration to prospecting for silver-lead-zinc deposits in shallow cover areas of eastern Xiaoshan

作　　者：毕炳坤 常云真 施强 申随水 BI Bing-Kun;CHANG Yun-Zhen;SHI Qiang;SHEN Sui-shui(The First Institute of Geological and Mineral Resources Survey,Henan Bureau of Geology and Mineral Exploration and Development,Luoyang 471023,China;KeyLaboratory of Gold and Silver PolymetallicOre-forming Series and Deep Prediction of Henan Province,Luoyang 471023,China)

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,河南洛阳471023 [2]河南省金银多金属成矿系列与深部预测重点实验室,河南洛阳471023

出　　处：《物探与化探》2019年第5期976-985,共10页Geophysical and Geochemical Exploration

基　　金：河南省地质勘查基金项目(豫国土资发[2016]46号-03,豫国土资发[2018]22号-01);河南省财政地质科研项目(豫国土资发[2018]98号-02、03)联合资助

摘　　要：根据勘查目标地质体(含银多金属矿构造蚀变带及花岗斑岩体)与围岩的物性差异,在崤山东部浅覆盖区运用高精度磁测、激电中梯、激电测深等综合物探方法勘查隐伏型银多金属矿床。采用高精度磁测划分有利找矿靶区,通过激电中梯圈定矿化蚀变成矿有利地段,选用激电测深优化钻孔布设,提高钻孔见矿率,找矿取得重大突破。According to the physical character difference between the exploration object geological body (silver polymetal-bearing structural alteration zone and granite porphyry mass) and the wall rock,the authors employed such integrated geophysical exploration methods as high-precision magnetic survey,IP intermediate gradient and IP sounding to prospecting for concealed silver polymetallic deposits in the shallow cover area of eastern Xiaoshan.High-precision magnetic survey was used to divide favorable prospecting targets,IP intermediate gradient method was utilized to delineate favorable ore-forming sectors of mineralization and alteration,and IP sounding was used to optimize drill hole layout.In this way,the ore-intersecting rate was increased,and important breakthrough was made in ore prospecting.

关 键 词：崤山东部 银多金属矿 高精度磁测 激电中梯 激电测深 

分 类 号：P631[天文地球—地质矿产勘探]