激发极化法在寻找铜银钼多金属矿床中的应用  

Application of induced polarization method in exploration of copper silver and molybdenum polymetallic deposits

作　　者：赵伟锋 王瑞鹏 孙冠石 裴明星 李添 王鹏 刘佳彬 ZHAO Weifeng;WANG Ruipeng;SUN Guanshi;PEI Mingxing;LI Tian;WANG Peng;LIU Jiabin(The 8th Geological Brigade of Hebei Bureau of Geology and Mineral Exploration and Development,Qinhuangdao 066000,Hebei,China)

机构地区：[1]河北省地质矿产勘查开发局第八地质大队,河北秦皇岛066000

出　　处：《矿产勘查》2023年第5期776-784,共9页Mineral Exploration

基　　金：河北省地矿局地质勘查项目(冀地[2020]05号)资助。

摘　　要：昌黎县九龙山是重要的铜银钼多金属矿采区,前人通过开展激电中梯面积性测量和化探异常查证工作,发现激电中梯成果与化探异常查证结果套合较好,推测高极化异常区是矿化富集的主要地段,但对深部情况难以预测。为进一步了解激电异常的垂向分布及变化情况,对高极化异常区进行激电测深剖面测量,并结合测深断面图成果和不同深度的Fs平面等值线图,识别下伏矿体空间展布形态并指导钻孔布设。经钻孔验证表明,深部见矿较好区域与高极化异常区吻合良好。综合分析认为,激发极化法对寻找铜银钼多金属矿是行之有效的,为今后在该区域寻找多金属矿提供了技术参考,也为下一步推进该区地质找矿工作有着积极的指导意义。Jiulongshan in Changli is an important copper silver polymetallic deposit area.Previous studies have conducted the measurement of ladder area in overvoltage and geochemical anomaly verification,and found that they match well.It is speculated that the high polarization anomaly area is the main area of mineralization enrichment,but it is difficult to predict the deep situation.In order to further understand the vertical distribution and changes of IP anomalies,IP sounding profiles were measured in high polarization anomaly areas combined with the results of sounding profiles and the Fs plane contour map at different depths,the spatial distribution morphology of underlying ore body was identified and drilling layout was guided.Through drilling verification,it has been shown that the areas with good ore deposits in the deep are in great agreement with the areas with high polarization anomalies.Based on comprehensive analysis,it is believed that the induced polarization method is effective in searching for copper silver molybdenum polymetallic deposits,providing technical reference for the future exploration in the region,and has positive guiding significance for further geological exploration work in the region.

关 键 词：激发极化法 激电测深 高极化 铜银钼多金属矿床 

分 类 号：P631[天文地球—地质矿产勘探]