| 甘肃芨岭铀矿床空、地物探异常特征分析 |
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| 引用本文： | 孔志召,张正阳,赵璐.甘肃芨岭铀矿床空、地物探异常特征分析[J].铀矿地质,2021(2):244-252. |
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| 作者姓名： | 孔志召 张正阳 赵璐 |
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| 作者单位： | 核工业航测遥感中心 |
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| 基金项目： | 中国核工业地质局物探专项“甘肃省龙首山成矿带中东段物探测量”项目(编号:201544)资助。 |
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| 摘 要： | 铀矿体作为物性特征较为特殊的金属矿体,难以实现深部直接找矿,而研究典型铀矿体的物探异常特征,探索深部铀矿体的识别技术,可以为下一步铀矿找矿指明方向。芨岭矿床是龙首山成矿带较为典型的碱交代岩型铀矿床,文章以芨岭矿床29号勘探线为例,综合分析了航空、地面磁测、电磁法及钻孔揭露结果,总结了芨岭铀矿床空、地综合物探资料异常特征。研究结果表明:铀矿体在航空物探异常上表现为直立低阻、弱磁性特征;在地面物探异常中表现为团块状低阻,维度上具有明显的三维片状特征,在反演电阻率剖面上呈团块状低阻特征,并根据该特征预测了深部铀成矿远景区,为下一步铀矿找矿工作提供了方法参考。
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| 关 键 词： | 芨岭铀矿床 航空物探异常 地面物探异常 成矿预测 |
Airborne and Ground Geophysical Anomaly Analysis of Jiling Uranium Deposit,Gansu |
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| KONG Zhizhao,ZHANG Zhengyang,ZHAO Lu.Airborne and Ground Geophysical Anomaly Analysis of Jiling Uranium Deposit,Gansu[J].Uranium Geology,2021(2):244-252. |
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| Authors: | KONG Zhizhao ZHANG Zhengyang ZHAO Lu |
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| Institution: | (Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang,Hebei 050002,China) |
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| Abstract: | Jiling deposit is a typical alkaline metasomatic uranium deposit in the Longshoushan metallogenic belt.The airborne and ground radioactivity,magnetic,electromagnetic and borehole log data of the exploration line No.29 were used to comprehensively analyze and summarize the anomalous characteristics of the Jiling uranium deposit.The research results showed that above the uranium ore bodies there occur upright low resistance and weak magnetic anomalies of airborne survey;massive low resistance anomalies of ground measurement,which appear obvious sheet in three-dimensional dimensions and low-resistance characteristic of agglomerates in section.The above airborne and ground geophysical features were used to predicted the uranium metallogenic prospects and provided a reference for the next exploration work. |
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| Keywords: | Jiling uranium deposit airborne geophysical anomaly ground geophysical anomaly metallogenic prediction |
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