| 地面高精度磁测在西藏恰功铁矿勘查中的应用效果 |
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| 引用本文： | 李志华,王威,李群生,王建锋,卢显成,张国辉.地面高精度磁测在西藏恰功铁矿勘查中的应用效果[J].西部资源,2014(5):85-89. |
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| 作者姓名： | 李志华 王威 李群生 王建锋 卢显成 张国辉 |
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| 作者单位： | 中国地质大学资源学院;内蒙古自治区矿产实验研究所; |
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| 摘 要： | 恰功铁矿是近几年新发现的矿山,然而矿体的形态、大小、埋深、位置、产状、边界等几何特征还没有被认识清楚。为了弄清这些问题,本文通过欧拉反褶积方法对磁异常化极数据进行了反演,反演矿体深度为0-120m;在C-6异常中心选择了两条剖面进行了2.5维拟合反演,反演矿体厚度为20~30m,欧拉反褶积反演结果和2.5维拟合反演结果与ZK32钻孔验证结果相吻合。最后,通过建立恰功矽卡岩型铁矿地质—地球物理找矿模型,为该地区寻找隐伏夕卡岩型铁矿提供了思路。
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| 关 键 词： | 地面高精度磁法测量 欧拉反褶积方法 二度半磁性体反演 恰功铁矿 |
The Application of High-accuracy Ground Magnetic Survey in Qiagong Iron Deposits,in Tibet |
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| Institution: | LI Zhi-hua, Wang Wei, Li Qun-sheng, Wang Jian-feng, Lu Xian-cheng, Zhang Guo-hui( 1. Faculty of Resources, China University of Geosciences, Wuhan 430074, China ;2. Inner Mongolia Minerals Experiment Research Institute, Huhhot 010031, Inner Mongolia China) |
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| Abstract: | Qiagong iron deposits is a new discovered iron deposits in the recent years, the geometric characterization of shape ,size,positions,buried depth,occurrence and boundary of ore body have not a systematic recognition until now. In order to resolve these problems, this paper based on the inversion result of Euler deconvolution method and 2.5 D fitting inverse of two profiles, the inversion depths 0 to 120 meters is consistent to the drilling resuhs. Last, based on the magnetic anomaly characteristic analysis, establishing a comprehensive geological--geophysical prospecting model of Qiagong iron deposits, it can play a important role in searching for deep-buried iron deposits in this area. |
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| Keywords: | High-accuracy ground magnetic survey Euler deconvolution method 2 5 D inverse Qiagong iron deposits |
| 本文献已被 CNKI 维普 等数据库收录！ |
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