| 综合物探在石城崮铁矿采空区勘查中的应用 |
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| 引用本文： | 李希乐.综合物探在石城崮铁矿采空区勘查中的应用[J].吉林地质,2020,39(2):88-91,99. |
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| 作者姓名： | 李希乐 |
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| 作者单位： | 山东省地质测绘院,山东济南250002 |
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| 摘 要： | 该文阐述了在石城崮铁矿采空区的勘查中,采用高精度磁测及瞬变电磁法两种物探方法,根据本测区岩矿石及采空区的物性差异,分析采空区磁异常特征、视电阻率特征,对铁矿采空区的位置、深度、产状进行了初步推断并设计钻孔,经验证取得良好的勘探效果。利用高精度磁测可圈定目标磁异常的地表投影,利用瞬变电磁可圈定目标体的深度及倾向等。通过以上综合物探手段为本区的地质灾害防治设计及治理提供了科学的依据。
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| 关 键 词： | 采空区 综合物探 瞬变电磁 高精度磁测 |
Application of comprehensive geophysical prospecting in goaf exploration of Shichenggu iron mine |
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| LI Xi-le.Application of comprehensive geophysical prospecting in goaf exploration of Shichenggu iron mine[J].Jilin Geology,2020,39(2):88-91,99. |
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| Authors: | LI Xi-le |
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| Institution: | (Shandong GEO-Surveying and Mapping Institute,Jinan 250002,Shandong,China) |
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| Abstract: | In this paper,two geophysical prospecting method,high-precision magnetic survey and transient electromagnetic method,are used in the exploration of goaf in Shichenggu iron mine. According to the difference of physical properties of rocks,ores and goaf in this survey area,the characteristics of magnetic anomaly and apparent resistivity in goaf are analyzed. The location,depth and occurrence of goaf in iron mine are preliminarily inferred,and boreholes are designed. Good exploration results are obtained through verification. The surface projection of the target magnetic anomaly can be delineated by using high-precision magnetic survey,and the depth and tendency of the target body can be delineated by using transient electromagnetic. The above comprehensive geophysical exploration methods provide scientific basis for the design and control of geological disasters in this area. |
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| Keywords: | Goaf comprehensive geophysical exploration transient electromagnetic high-precision magnetic survey |
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