The effects of applying high-power IP and CSAMT sounding to the exploration of deep concealed ore deposits
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摘要: 隐伏矿产勘查是我国现今的主要任务,近几年在内蒙古锡盟地区做了大量的电法测量工作,主要应用大功率激电和可控源音频大地电磁测深方法组合进行找矿,取得了很好的找矿效果。在内蒙古某深部隐伏铅锌矿的勘查中,将大功率激电法用于快速发现和圈定矿区矿化范围及构造展布情况,用可控源音频大地电磁测深法反演电阻率断面图推测地下岩性电性特征、地质结构、构造产状、规模和矿(化)体的赋存空间,为钻探工程提供依据。Abstract: The exploration of deep concealed ore deposits is the main task at present. A lot of electrical measurements have been com-pleted in Xilin Gol League of Inner Mongolia in recent years, which mainly consist of high-power IP and CSAMT or their combinational methods, with good prospecting results achieved. High-power IP measurement was used for discovery and delineation of mineralization limits and distribution of structures in the ore district;Inversion of resistivity of CSAMT section was conducted to deduce underground electrical characteristics of lithology, geological structure, attitude of structure, and size and space of ore ( mineralized) body. The re-sults achieved by the authors provide the basis for the drilling. This paper describes the exploration process of a certain deep concealed lead-zinc deposit in Inner Mongolia and makes interpretation.
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