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    陕西省凤县大湾里金矿物化探综合研究及找矿预测

    Comprehensive study of geophysical and geochemical exploration and mineral prediction of the Dawanli gold deposit in Feng County, Shaanxi Province

    • 摘要: 陕西省凤县大湾里金矿处于南秦岭成矿带(Ⅲ级)凤县-太白成矿亚带(Ⅳ级)庞家河-白石铺成矿远景区(Ⅴ级)。区内初步圈定2条金矿体,金矿赋存于石炭系四峡口组地层中,矿体受NNE向挤压断裂构造控制;磁法测量ΔT正异常很好指示了控矿构造的分布特征;通过地球化学岩石剖面分析提取了区内Au、Cu、Co元素含量变化特征,显示了金、铜、钴成矿与岩性、蚀变(组合)的关系;根据研究成果圈定了金、铜-钴矿找矿预测靶区,为区内进一步找矿突破提供了有力的技术支撑。

       

      Abstract: The Dabwanli Gold Mine in Feng County, Shaanxi Province, is located in the South Qinling metallogenic belt (Ⅲ), the Fengxian-Taibai metallogenic sub-belt (IV level), and the Pangjiahe-Baishipu metallogenic prospective area (V level). Two gold ore bodies have been preliminarily delineated in the area, which are located in the Carboniferous Sixiakou Formation and bodies are controlled by NNE-trending compressional fault. The ΔT positive magnetic anomalies effectively indicate the distribution characteristics of the ore-controlling structures. Through geochemical rock profile analysis, the variation characteristics of average contents of Au, Cu, and Co were extracted, showing the relationship between gold, copper, and cobalt ore formation and lithology as well as alteration. Based on the research results, the predicted target areas for gold, copper cobalt mineral exploration have been delineated, providing strong technical support for further breakthroughs in mineral exploration in the region.

       

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