| 1:5万矿产调查磁测资料对隐伏岩体的推断及意义 |
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| 引用本文： | 金鑫,贾立国,孙中任,高飞.1:5万矿产调查磁测资料对隐伏岩体的推断及意义[J].地质与资源,2008,17(1):65-68. |
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| 作者姓名： | 金鑫 贾立国 孙中任 高飞 |
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| 作者单位： | 沈阳地质矿产研究所, 辽宁 沈阳 110033 |
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| 摘 要： | 目前开展的1：5万矿产调查工作中，广泛使用了地面高精度磁测方法.应充分利用磁测资料提供找矿信息.岩浆活动及构造作用是矿产形成、定位的重要因素，而隐伏岩体和隐伏构造是磁测资料研究的主要对象，对其细致研究对找矿工作有重要指导作用.通过分析对比磁场及异常特征，密切结合地质资料识别异常起因，初步定性解译圈定与合理选择磁性参数建模反演计算相结合，并利用其他方法进行相互验证，能够有效地推断出隐伏岩体的存在及其深部空间形态，在各项条件选择合理情况下，磁性推测也能获得较好效果.隐伏岩体的推测对侵入岩特征研究、总结构造控矿作用、寻找与岩浆热液有关的隐伏矿体具有重要意义.
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| 关 键 词： | 高精度磁测 异常特征 隐伏岩体 定量反演 |
| 文章编号： | 1671-1947(2008)01-0065-04 |
| 收稿时间： | 2007-10-24 |
| 修稿时间： | 2007年10月24 |
INFERENCE OF HIDDEN ROCK BODIES BY MAGNETIC MEASUREMENT DATA IN 1:50000 MINERAL RESOURCES SURVEY |
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| JIN Xin,JIA Li-guo,SUN Zhong-ren,GAO Fei.INFERENCE OF HIDDEN ROCK BODIES BY MAGNETIC MEASUREMENT DATA IN 1:50000 MINERAL RESOURCES SURVEY[J].Geology and Resources,2008,17(1):65-68. |
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| Authors: | JIN Xin JIA Li-guo SUN Zhong-ren GAO Fei |
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| Institution: | Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China |
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| Abstract: | The method of surface high-precision magnetic measurement is broadly applied in the present 1:50000 mineral resources survey. The magnetic measurement data should be fully used to obtain ore-searching information. Magmatic activities and structural movements are key factors for the forming and emplacing of mineral resources. The main objects of the study of magnetic measurement data are just the hidden rock bodies and structures. The occurrences and shapes of hidden rock bodies can be effectively inferred by analysis and comparison of magnetic field and anomaly characters, combined with geologic data to tell the causes of the anomalies and verified by other methods. The inference of hidden rock bodies is significantly important for research of intrusive rocks, ore-controlling structures and hidden ore bodies related to magmatic hydrothermal fluid. |
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