| 三江中段侵入岩航磁异常特征及找矿作用 |
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| 引用本文： | 郑广如,张永军,眭素文,于长春.三江中段侵入岩航磁异常特征及找矿作用[J].物探与化探,2007,31(6):535-539,545. |
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| 作者姓名： | 郑广如 张永军 眭素文 于长春 |
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| 作者单位： | 中国国土资源航空物探遥感中心,北京,100083 |
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| 基金项目： | 国土资源部国土资源大调查项目 |
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| 摘 要： | 根据西南三江中段维西-宁蒗地区1:20万高精度航磁勘查结果,对比已知中酸性侵入岩体的磁异常特征,发现多处磁异常与已知中酸性岩体相对应,结合物性及地质、重力、化探等资料新圈定数十处近地表或隐伏的中酸性侵入岩.通过对这些岩体与已知矿产的关系分析认为,中酸性侵入岩与金、银、铜、铅、锌多金属矿产关系密切,因此,这些侵入岩体是间接寻找上述矿产的有利地带.
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| 关 键 词： | 高精度航磁 中酸性侵入岩 找矿作用 |
| 文章编号： | 1000-8918(2007)06-0535-05 |
| 收稿时间： | 2007-09-01 |
| 修稿时间： | 2007年9月1日 |
AEROMAGNETIC ANOMALY CHARACTERISTICS OF THE CENTRAL PART OF SANJIANG AREA AND THEIR ROLES IN ORE-PROSPECTING WORK |
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| ZHENG Guang-ru,ZHANG Yong-jun,SUI Su-wen,YU Chang-chun.AEROMAGNETIC ANOMALY CHARACTERISTICS OF THE CENTRAL PART OF SANJIANG AREA AND THEIR ROLES IN ORE-PROSPECTING WORK[J].Geophysical and Geochemical Exploration,2007,31(6):535-539,545. |
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| Authors: | ZHENG Guang-ru ZHANG Yong-jun SUI Su-wen YU Chang-chun |
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| Institution: | China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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| Abstract: | Based on 1:200 000 high-precision aeromagnetic survey in Weixi-Ninglang area along the central part of the Sanjiang region and a comparison with the magnetic anomaly characteristics of the known intermediate-acid intrusive bodies,the authors have found that quite a few magnetic anomalies are consistent with the known intermediate-acid intrusive bodies.In combination with physical characters and geological,gravity and geochemical data,tens of shallow or concealed intermediate-acid intrusive bodies were delineated.An analysis of the relationship between these rock bodies and known ore resources reveals the close relationship between the intermediate-acid intrusive bodies and Au,Ag,Cu,Pb,Zn polymetallic ore resources.It is thus concluded that these intrusive bodies serve as favorable areas in search for these ore resources. |
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| Keywords: | high-precision aeromagnetic survey intermediate-acid intrusive rock ore-prospecting |
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