| 汪来,焦智伟,牛禹,刘姗姗.综合物探方法在四川505地区铀矿勘查中的应用[J].矿产勘查,2017,8(1):132-138 |
| 综合物探方法在四川505地区铀矿勘查中的应用 |
| Application of integrated geophysical methods in exploration of Uranium deposit in 505 area, Sichuan |
| 投稿时间：2016-05-04 |
| DOI： |
| 中文关键词: 505地区 混合岩 控矿构造 音频大地电磁法 地面高精度磁测 四川 |
| 英文关键词: 505 area, migmatite, ore-controlling fault, audio magnetotelluric method, high-precision magnetic survey, Sichuan |
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| 摘要点击次数: 1995 |
| 全文下载次数: 947 |
| 中文摘要: |
| 地区位于康滇地轴中南段,为混合岩型铀矿化分布区。采用音频大地电磁法(AMT)和地面高精度磁测相结合的综合物探方法,探测了505地区控矿构造深部地质特征。探测结果表明,混合岩地区电性面貌主要为高阻特征；混合岩化不均匀在电性剖面上表现为高阻区域中夹杂团块状低阻,且电性不均一；断裂构造在电性断面中表现为向深部延伸的舌状、囊状低阻体,在ΔT等值线平面图中反映为正负磁场分界线、串珠状正磁异常。 |
| 英文摘要: |
| The 505 area located in the central-southern section of Kangdian geological axis, is an important migmatite type uranium mineralization area. Integrated geophysical method of AMT and ground high-precision magnetic survey is applied to detect deep geological characteristics of the ore-controlling fault in 505 area.The detection results show that the migmatitearea has characteristics of high resistivity. As a result of non-uniform migmatization, high resistance area is mixed up with crumbly low resistivity body on the contour map of inversion resistivity and the electrical property is non-uniform. The fault structure showed up as ligulate, cystic and low resistivity body on the contour map of inversion resistivity,but showed up as dividing line of positive-negative magnetic fields or beaded, positive aeromagnetic anomalies on the ΔT contour map of high-precision magnetic survey. |
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