| 综合物探测量在大兴安岭南段炒米房地区铀矿勘查中的应用北大核心CSCD |
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| 引用本文： | 于,兵.综合物探测量在大兴安岭南段炒米房地区铀矿勘查中的应用北大核心CSCD[J].地质与勘探,2022,58(5):1070-1081. |
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| 作者姓名： | 于 兵 |
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| 作者单位： | 核工业二四三大队,内蒙古赤峰 |
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| 基金项目： | 中国核工业地质局铀矿资源调查评价项目（编号：202001）资助 |
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| 摘 要： | 炒米房地区位于大兴安岭南段、沽源-红山子铀成矿带北部,区内成矿地质条件较为优越。近年来在托河盆地炒米房地区开展铀矿勘查工作,限于地表玄武岩及第四系覆盖物较厚的原因,找矿难度较大。为实现铀矿找矿突破,本次研究采用地面伽玛能谱测量、瞬时氡气测量大致确定地表放射性特征;可控源音频大地电磁测深大致查明花岗岩与花岗闪长岩的深部发育特征,确定构造深部信息;同时应用地面高精度磁测,提高了可控源音频大地电磁测深推断构造的可靠性。本文通过多种方法组合和异常综合分析、解译,圈定多处铀成矿有利部位,在铀成矿有利部位进行钻探查证,揭露到较好的工业铀矿体。总结出一套适用于较厚覆盖地区铀矿勘查的物探综合方法,为今后铀矿找矿工作提供有效技术手段。
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| 关 键 词： | 伽玛能谱 氡气测量 可控源音频大地电磁测量 地面高精度磁测 铀矿勘查 炒米房地区 大兴安岭南段 |
| 收稿时间： | 2021/7/2 0:00:00 |
| 修稿时间： | 2022/4/18 0:00:00 |
Application of complex detection quantity in uranium prospecting in Chaomifang area in the southern section of Daxing 'an Mountains |
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| Yu Bing.Application of complex detection quantity in uranium prospecting in Chaomifang area in the southern section of Daxing 'an Mountains[J].Geology and Prospecting,2022,58(5):1070-1081. |
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| Authors: | Yu Bing |
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| Institution: | Geological Party No.243, CNNC, Chifeng, Inner Mongolia |
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| Abstract: | The Chaomifang area is located in the southern section of the Daxing''an Mountains and the northern part of the Guyuan-Hongshanzi uranium metallogenic belt. The metallogenic geological conditions are relatively superior. In recent years, the uranium exploration work has been carried out in the Chaomifang area of the Tuohe Basin. The reason for the thick covering of the four series makes prospecting difficult. In order to achieve a breakthrough in uranium prospecting, the surface radioactivity characteristics are roughly determined by surface Gamma spectrum measurement and instantaneous radon gas measurement. The deep development characteristics of granites and granodiorites are roughly identified by controlled-source audio magnetotelluric sounding, and the deep structural information is determined. At the same time, high precision magnetic survey is applied to improve the reliability of inferring fault structure. at the same time, apply the ground high-precision magnetic survey to improve the reliability of the above methods to infer the fault structure. This article uses a combination of methods and comprehensive analysis and interpretation of anomalies to delineate multiple favorable locations for uranium metallogenesis, conduct drilling and verification at the favorable locations for uranium metallogenesis, and expose good industrial uranium ore bodies. A set of comprehensive geophysical prospecting methods suitable for uranium prospecting in thicker areas is summarized, which will provide effective technical means for future uranium prospecting work. |
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| Keywords: | Gamma energy spectrum radon gas measurement controlled-source audio magnetotelluric measurement ground high precision magnetic measurement uranium exploration Chaomifang area |
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