常规激电测深高密度二维反演效果对比研究  

A Comparative Study on High-density Two-dimensional Inversion of Conventional IP Sounding

作　　者：姜鸿 孟子龙 张超 李陇锋 路瀚 JIANG Hong;MENG Zilong;ZHANG Chao;LI Longfeng;LU Han(Shaanxi Geology,Mineral and Earth Exploration Energy Technology Co.,Ltd..Xi’an,Shanxi 710054,China;Shanxi Hanzhong Brigade of Geology and Mineral Resources,Hanzhong,Shanxi 723000,China;The Second Geological and Mineral Exploration Institute of Gansu Bureau of Geology and Mineral Resources,Lanzhou,Gansu 730020,China;Xi’an Spark Geophysical Exploration Remote Sensing Technology Co.,Ltd.,Xi’an,Shanxi 710000,China)

机构地区：[1]陕西地矿大地探测能源科技有限公司,陕西西安710054 [2]陕西地矿汉中地质大队有限公司,陕西汉中723000 [3]甘肃省地矿局第二地质矿产勘查院,甘肃兰州730020 [4]西安星火地探遥感科技有限公司,陕西西安710000

出　　处：《中国锰业》2023年第2期18-24,共7页China Manganese Industry

基　　金：陕西省地质勘查基金项目(编号:61201304156)。

摘　　要：在金属矿产勘查中,直流激电法得到了广泛的应用。直流激电法数据处理中大多以经验公式进行深度换算,给出拟断面图进行异常分析与解释,但是这种把纵坐标以AB/n进行深度转换的方式,也只是地质体视电阻率和视极化率的模糊反映,无法反映地电模型真实的本征电阻率和本征极化率,异常也常常受地形影响。研究主要关于Res2dinv和ZondRes2D两款二维电法反演软件及其应用,将常规激电测深数据转换为可利用的数据格式后,通过两款软件实现常规对称四极测深剖面的二维反演并就应用效果对比分析,结合地质成果进行解释评价。IP method is widely used in non-ferrous metal exploration.In the data processing of the IP method,most of them are applied in empirical formulas for depth conversion.It gives pseudo-section diagrams for abnormal analysis and interpretation.However,using AB/n to express the depth can only obtain a vague reflection of the geological body.It cannot truly and clearly reflect intrinsic resistivity and intrinsic polarizability of the geological body.Anomalies are often affected by the topography.The research is about introducing two kinds of two-dimensional electrical inversion software,Res2dinv and ZondRes2D.After necessary conversion of conventional IP sounding data,two-dimensional inversion can be realized.The effect is analyzed and combined with geological knowledge for evaluation.

关 键 词：激电测深 二维反演 Res2dinv ZondRes2D 铜矿 

分 类 号：P631.3[天文地球—地质矿产勘探]