黄金科学技术 ›› 2021, Vol. 29 ›› Issue (5): 637-646.doi: 10.11872/j.issn.1005-2518.2021.05.032
俞炳1,2,3(),邱海成4,于昌明1,2(),曾庆栋1,2,3,杜琴1,2,叶杰1,2,李建平4,陈海涛4
Bing YU1,2,3(),Haicheng QIU4,Changming YU1,2(),Qingdong ZENG1,2,3,Qin DU1,2,Jie YE1,2,Jian-ping LI4,Haitao CHEN4
摘要:
五龙金矿是辽东金矿集区最大的石英脉型金矿床,已累计探明金资源量大于80 t,作为一个开采多年的老矿山,当前面临着矿山资源储量严重不足的问题,亟需寻找深部隐伏资源。通过应用EH4音频大地电磁方法,在五龙金矿的东西两侧分别布设了100线、1000线和1050线3条EH4测量线,采用标量TM模式对原始测量数据进行收集并复核,经计算机处理后绘制出EH4二维反演剖面图。在EH4二维反演剖面图上成功识别出了分别位于矿区东西两侧的100#断裂和鸡心沟断裂,其垂向延深均超过1 000 m。经过地质观察和坑道钻孔工程揭露,断裂带地表和浅部均存在着明显的金矿化,表明这些断裂在五龙金矿成矿过程中起着重要作用。将EH4音频大地电磁方法应用于五龙金矿控矿构造及成矿预测研究中,取得了良好的效果,矿区东、西部和深部均具有良好的找矿潜力,为矿区下一步地质找矿指明了方向。
中图分类号:
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