大功率激电法在辽宁新宾南杂木金矿床勘查中的应用效果  

Application of high⁃power induced polarization method in the exploration of the Nanzamu Gold Deposit,Xinbin,Liaoning

作　　者：高忠晖 袁昆 Gao Zhonghui;Yuan Kun(Liaoning Geology and Mineral Resources Institute Co.,Ltd.)

机构地区：[1]辽宁省地质矿产研究院有限责任公司

出　　处：《黄金》2025年第2期83-88,共6页Gold

基　　金：中国地质调查局项目(1212011121004)。

摘　　要：南杂木金矿床地处辽东的抚顺—清原金铜成矿带内,其内矿产资源丰富,金矿床(点)密布,地质找矿前景良好,但受森林覆盖率高的限制,找矿突破难度大。鉴于此,以南杂木金矿床为研究对象,基于矿体与围岩的激电特性差异,采用大功率激电面积测量和激电测深工作圈定矿致异常。基于激电测量工作成果,在矿区内圈定激电异常5处,并在DJ-2号激电异常处探获矿体1条,该矿体控制长200 m,中部水平厚度最大,为3.1 m,平均金品位2.39 g/t。研究成果表明,大功率激电法在南杂木金矿床勘查中找矿效果较好,可为进一步找矿工作提供理论基础和实践依据。The Nanzamu Gold Deposit is located within the Fushun-Qingyuan Au-Cu metallogenic belt in Eastern Liaoning,an area rich in mineral resources and densely distributed with gold deposits(spots),offering excellent pros⁃pecting potential.However,the high forest coverage poses challenges for significant breakthroughs in exploration.To address this,the study focused on the Nanzamu Gold Deposit,employing high⁃power induced polarization(IP)area measurement and IP sounding techniques to delineate ore⁃induced anomalies based on the IP property differ⁃ences between the orebody and surrounding rocks.From the results of the IP survey,5 anomalies were identified within the mining area.Among them,a single orebody was discovered in the DJ-2 IP anomaly zone.The orebody spans 200 m in length,with a maximum horizontal thickness of 3.1 m in the central part and an average gold grade of 2.39 g/t.The findings indicate that the high⁃power IP method achieves promising results in the exploration of the Nanzamu Gold Deposit,providing both theoretical and practical support for future prospecting efforts.

关 键 词：辽东 南杂木金矿床 大功率激电 激电测深 隐伏矿体 激电异常 找矿效果 

分 类 号：TD11[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]