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| 基金项目：中国地质调查局项目“内蒙古喀喇沁旗大西沟一带萤石矿资源调查”（DD20160057-07）、“东部地区硼磷萤石等重要非金属矿产调查”（DD20160057）、“江西赣南—福建浦城地区战略性萤石硼资源调查”（DD20190816） |
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| 摘要： |
| 高密度电法是浅层地球物理勘查的主要方法之一,已广泛应用于工程勘察、矿产资源勘查、工程质量检测、考古、煤炭采空区勘查、水利水电工程和环境等领域。基于内蒙古喀喇沁旗大西沟一带萤石矿调查成果，以毛林坝低温热液裂隙脉状充填萤石矿为例，运用高密度电法对该矿体南西延伸隐伏地区进行了探测。结果表明，在萤石矿控矿断裂南西隐伏延伸部位，高密度电法剖面均显示有低阻异常。经槽探工程揭露，地表浅部矿体达工业规模，大致查明了控矿断裂的延伸情况，为下一步深部钻探工程布置指明了方向，同时为热液裂隙充填型萤石矿床勘查工作提供参考。 |
| 关键词：萤石矿 高密度电法 低阻异常 内蒙古毛林坝 |
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| Abstract: |
| High density electrical method is one of the main methods of shallow geophysical exploration, whose application fields mainly include engineering exploration, mineral resources exploration, engineering quality detection, archaeology, coal goaf exploration, water conservancy and hydropower engineering and environment. Based on the survey results of fluorite ore in Daxigou area of Karaqin Banner, Inner Mongolia, taking the fluorite ore filled with low-temperature hydrothermal fracture vein in Maolinba as an example, the high-density electrical method was used to detect the southwest extension concealed area of the fluorite ore body in Maolinba. The high-density electrical profile shows low resistivity anomaly in the southwest concealed extension of Maolinba fluorite deposit. It is revealed by the trenching project that the shallow ore body on the surface reaches the industrial scale, and the extension of ore controlling faults is roughly identified, which indicates the direction for the next deep drilling project layout, and provides theoretical and practical basis for the exploration of hydrothermal fracture-filled fluorite deposit. |
| Keywords:fluorite high density electrical method low resistivity anomaly Maolinba, Inner Mongolia |
| 金涛.高密度电法在内蒙古喀喇沁旗毛林坝萤石矿找矿中的应用[J].地质学刊,2021,45(3):311-315 |
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