| 郝红蕾,江宁,刘和花,詹少全,张挺,张宝松.铜陵市铜山铜矿深部勘查中的物探方法应用[J].矿产勘查,2026,17(4):660-672 |
| 铜陵市铜山铜矿深部勘查中的物探方法应用 |
| Application of geophysical exploration methods in deep exploration of Tongshan copper mine in Tongling City |
| 投稿时间：2024-07-18 |
| DOI：10.20008/j.kckc.202604008 |
| 中文关键词: 可控源音频大地电磁 高精度磁测 含铜磁铁矿化体 花岗闪长斑岩 铜山铜矿 |
| 英文关键词: CSAMT high-precision magnetic survey copper containing magnetite mineralization body grano diorite porphyry Tongshan copper mine |
| 基金项目: |
| 作者 | 单位 | | 郝红蕾 | 江苏省新能源地质调查大队,江苏南京 210012
江苏省地质局,江苏南京 210018 | | 江宁 | 江苏省新能源地质调查大队,江苏南京 210012
江苏省地质局,江苏南京 210018 | | 刘和花 | 江苏省地质局,江苏南京 210018 | | 詹少全 | 江苏省新能源地质调查大队,江苏南京 210012
江苏省地质局,江苏南京 210018 | | 张挺 | 江苏省新能源地质调查大队,江苏南京 210012
江苏省地质局,江苏南京 210018 | | 张宝松 | 南京地质调查中心,江苏南京 210016 |
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| 中文摘要: |
| 随着中国浅部金属矿产资源的日渐枯竭，深部找矿成为目前矿产勘查的重要方向。本文围绕制约铜山矿集区深部找矿的物探方法技术问题，开展可控源音频大地电磁(CSAMT)和高精度磁测勘探方法，结合勘探区成矿地质条件，查明了区内的构造特征，推测了与铜矿成矿关系密切的磁性花岗闪长斑岩的分布特征，解释结果为后续钻孔位置布设及深度预测提供了依据，经后期钻孔验证，揭露了约 72 m厚的含铜磁铁矿化体。可控源音频大地电磁法(CSAMT)与高精度磁法作为深部物探的核心组合，凭借“电法探深、磁法定体、互补约束、联合定位”的技术优势，在铜山铜矿深部勘查中发挥了不可替代的作用，实现了控矿构造识别、隐伏矿体定位、成矿岩体圈定、钻探靶区优选的关键突破，显著提升了深部找矿成功率与资源评价精度。 |
| 英文摘要: |
| With the gradual depletion of shallow metal mineral resources in China, deep exploration has be.come a major direction for future mineral prospecting. To address the geophysical technical problems restrictingdeep mineral exploration in the Tongshan mining area, we adopted a combined method of controlled-source audio-frequency magnetotellurics (CSAMT) and magnetic survey. In light of the metallogenic geological settings of thestudy area, we delineated the structural features within the exploration scope and inferred the distribution of mag. netic granodiorite porphyry closely associated with copper mineralization. The interpretation results provide a basisfor subsequent drilling positioning and depth prediction. Subsequent drilling verification revealed a copper-bearingmagnetite orebody approximately 72 meters thick. As key deep geophysical exploration techniques, CSAMT andhigh-precision magnetic survey play irreplaceable roles in deep prospectingfor the Tongshan copper deposit. Lever.aging their technical strengths -electrical sounding for depth detection, magnetic survey for orebody delineation,mutual constraint and joint positioning -the two methods have made major breakthroughs in identifying ore-controlling structures, locating concealed orebodies and delineating ore-bearing rock masses, as well as optimizingdrilling targets. This has greatly improved the success rate of deep mineral exploration and the accuracy of resourceassessment. |
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