| 湖南清水塘铅锌矿区物化探异常特征 |
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| 引用本文： | 刘莎,艾国梁.湖南清水塘铅锌矿区物化探异常特征[J].地质学刊,2023,47(1):91-99. |
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| 作者姓名： | 刘莎 艾国梁 |
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| 基金项目： | 湖南省探矿权采矿权价款地质勘查项目“湖南省祁东县清水塘矿区边深部铅锌多金属矿普查”（201203059） |
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| 摘 要： | 湖南清水塘铅锌矿位于邵阳—郴州断裂带上，是典型的中低温热液充填脉状铅锌矿床。矿体呈网脉状、脉状、透镜状赋存于硅化破碎带中，赋矿围岩为寒武、奥陶系板岩。在该区开展了地面高精度磁法、激电中梯测量以及土壤地球化学测量等工作，对物化探异常特征进行综合研究，总结物化探找矿标志。结果表明，中高值磁异常结合激电中梯异常特征可有效推断断裂构造位置，铅锌矿体呈低阻高视幅频率的异常特征，Pb、Zn地球化学异常是该区铅锌矿体最主要的找矿标志。经工程查证，在异常区均发现了铅锌矿体，进一步证明物化探方法在清水塘铅锌矿区的应用效果较好，为矿区下一步找矿指明了方向，对于同类型矿床的找矿具有一定的参考价值。
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| 关 键 词： | 脉状铅锌矿 物化探异常 找矿标志 工程验证 湖南清水塘 |
Characteristics of geophysical and geochemical anomalies in Qingshuitang lead-zinc mining area, Hunan Province |
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| Liu Sh,Ai Guoliang.Characteristics of geophysical and geochemical anomalies in Qingshuitang lead-zinc mining area, Hunan Province[J].Jiangsu Geology,2023,47(1):91-99. |
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| Authors: | Liu Sh Ai Guoliang |
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| Abstract: | The Qingshuitang lead-zinc deposit in Hunan is located in the Shaoyang-Chenzhou fault zone, which is a typical medium-low temperature hydrothermal fluid filling vein-like lead-zinc deposit. The ore bodies occur in the silicified fracture zone in the form of net veins, veins and lenses, and the ore-hosting surrounding rocks are Cambrian and Ordovician slate. High precision magnetic method, IP medium ladder and soil geochemical survey have been carried out in this area. Through the comprehensive study and analysis of the above geophysical and geochemical anomaly characteristics, the geophysical and geochemical prospecting indicators were summarized. The results have shown that the fault location can be inferred effectively by combining the characteristics of medium and high value magnetic anomalies and IP medium ladder anomalies, and the lead-zinc ore body presents the abnormal characteristics of low resistance and high apparent amplitude and frequency. Geochemical Pb-Zn anomaly is the main prospecting indicator for Pb-Zn ore bodies in this area. The engineering verification shows that lead zinc ore bodies were found in the abnormal area, which further proves the practicability of the geophysical and geochemical exploration method in the Qingshuitang lead-zinc ore area, and offers the direction for its future prospecting, and reference for the prospecting of the same type of ore deposits. |
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| Keywords: | veined lead-zinc deposit geophysical and geochemical anomalies prospecting indicator engineering verification Qingshuitang Hunan |
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