| 张德实,何帅,杨炳南,沈小庆,韩姚飞.高频大地电磁法在黔北某铝土矿勘查中的应用[J].贵州地质,2022,39(2):115-121 |
| 高频大地电磁法在黔北某铝土矿勘查中的应用 |
| Application of High Frequency Magnetotelluric Method in a Bauxite Ore Exploration in Northern Guizhou |
| 投稿时间：2022-01-13 |
| DOI： |
| 中文关键词: 电磁法 铝土矿 断裂 岩溶 正反演 贵州北部 |
| 英文关键词:Electromagnetic method Bauxite Fracture Karst Forward and inversion Northern Guizhou |
| 基金项目:黔科中引地[2021]4027、黔科合平台人才[2018]5618、黔科合支撑[2019]2868联合资助。 |
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| 中文摘要: |
| 为研究高频大地电磁法在黔北铝土矿山勘查中的应用效果，笔者从区内岩矿石物性特征分析入手，结合已有地质资料建立含矿岩系模型进行正反演，选出一维TM+二维TE反演模式，用于区内实测剖面的数据处理，最后与钻孔约束的地质勘探剖面对比分析，结果表明高频大地电磁法既能圈定岩溶、识别断裂等构造，又能较清晰地划分出区内主要地层电性界面，间接配合地质找矿。说明高频大地电磁法在黔北隐伏铝土矿勘查和服务于生产矿山防治水等领域具有较好应用前景。 |
| 英文摘要: |
| In order to study the application effect of high-frequency magnetotelluric method in the exploration of bauxite mines in northern Guizhou，it starts from the analysis of the physical properties of rocks and minerals in the area，and combines the existing geological data to establish a model of ore-bearing rock series for forward and inversionThe inversion model is used for data processing of the measured section in the area，and finally compared with the geological exploration section constrained by the boreholeThe results show that the high frequency magnetotelluric method can not only delineate karst，identify faults and other structures，but also can clearly demarcated the main strata electrical interface in the area，which indirectly cooperates with geological prospectingIt means that the high-frequency magnetotelluric method has good application prospects in the fields of buried bauxite exploration in northern Guizhou and serving the production of mine water control |
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