CSAMT法在相山铀铅锌矿找矿远景区划分中的试验应用  

Experimental application of CSAMT method in the delineation of uranium-lead-zinc prospecting area in Xiangshan

作　　者：杨志成 张辉 张丽 YANG Zhicheng;ZHANG Hui;ZHANG Li(Geological Exploration Technology Institute of Anhui Province,Energy Exploration Center,Hefei 230041,Anhui,China)

机构地区：[1]安徽省勘查技术院(安徽省地质矿产勘查局能源勘查中心),安徽合肥230041

出　　处：《资源信息与工程》2024年第4期22-28,共7页Resource Information and Engineering

基　　金：中央地质基金项目“综合地球物理技术在深部地质调查与三维地质填图中的应用研究”(1212011220258)。

摘　　要：通过“相山铀铅锌矿找矿远景区CSAMT有效性试验”项目成果的分析,结合已有地质资料,先后完成了不同施工参数比对、不同预处理方法比对、不同反演软件效果对比、相同软件不同处理模型比对、CSAMT法和AMT法反演结果对比,以及与已知地质剖面的符合性对比,总结了针对试验区有效的试验施工参数选择以及资料预处理和反演最优方案。试验结果表明,CSAMT法在相山地区划分组间界面、基底界面、断裂构造等方面有明显效果,铀矿床和多金属矿床均有明显的电阻率异常特征,可以把总结的电性特征作为该区找矿远景区划分的重要依据之一。本试验项目的结果可以为相同或类似地区的勘查工作提供参考。Through the analysis of the results of the"CSAMT effectiveness test for the Xiangshan uranium lead zinc ore prospecting prospect"project,combined with known geological data,different construction parameters were compared,different preprocessing methods were compared,different inversion software effects were compared,the same software was compared with different processing models,the CSAMT method and AMT method inversion results were compared,and the consistency with known geological profiles was compared.The authors summarized the effective selection of experimental construction parameters,as well as the optimal plan for data preprocessing and inversion for the experimental area.The experimental results indicated that the CSAMT method had significant effects in delineating inter group interfaces,basement interfaces,fault structures,and other aspects in the Xiangshan area.Uranium and polymetallic deposits had obvious electrical resistivity anomalies,and the summarized electrical characteristics can be used as an important basis for delineation of the prospecting area.The results of this experimental project also can provide reference for exploration in same or similar areas.

关 键 词：CSAMT 找矿远景区 电性结构 铀铅锌矿 

分 类 号：P618[天文地球—矿床学] P631[天文地球—地质学]