广域电磁法在黄沙坪铅锌多金属矿田深部探测中的应用  

Application of wide field electromagnetic method in deep exploration of Huangshaping lead-zinc polymetallic ore field

作　　者：孟超 张慧 张婷 邓晓峰 蒋永芳 陈庆 MENG Chao;ZHANG Hui;ZHANG Ting;DENG Xiaofeng;JIANG Yongfang;CHEN Qing(Hunan Geosun Hi-technology Co.,Ltd.,Changsha 410208,Hunan,China;Hunan Province Deep Earth Resources Electromagnetic Exploration Engineering Technology Research Center,Changsha 410208,Hunan,China;Hunan Natural Resources Affairs Center,Changsha 410208,Hunan,China)

机构地区：[1]湖南继善高科技有限公司,湖南长沙410208 [2]湖南省深地资源电磁法勘探工程技术研究中心,湖南长沙410208 [3]湖南省自然资源事务中心,湖南长沙410208

出　　处：《矿产勘查》2024年第9期1607-1616,共10页Mineral Exploration

基　　金：湖南省自然资源厅科研项目(HBZ20240149);湖南省重点研发计划(2024AQ2002)联合资助。

摘　　要：位于南岭成矿带中段北缘的黄沙坪铅锌多金属矿田,是湖南省最大的铅锌矿产地,其开采历史悠久,基础地质研究程度较高。目前矿区面临资源枯竭与接续问题,亟需开展地球物理深部探测,预测及寻找深部隐伏矿体。本文采用广域电磁法探测研究区深部地质构造和隐伏岩体的形态及规模,拓展深部找矿空间。探测结果表明:广域电磁法在本区能较好的识别深部地质信息,矿区深部还存在大范围岩体,在岩体与围岩接触带仍具有较大找矿潜力。The Huangshaping lead-zinc polymetallic ore field in the north margin of the central part of Nanling metallogenic belt is the largest lead-zinc ore producing area in Hunan Province,with a long mining history and a high degree of basic geological research.At present,the mining area is faced with the problem of resource deple⁃tion and continuity.The deep geophysical exploration has certain guiding significance for forecasting and searching deep hidden ore bodies.This time,through the wide field electromagnetic exploration in Huangshaping ore field,the deep geological structure and the form and scale of buried rock mass are detected,and the deep prospecting space is expanded.The results show that the wide field electromagnetic method can identify the deep geological information in this ore field,and there is still a wide range of rock mass in the deep,and there is still a large prospecting potential in the contact zone between rock mass and surrounding rock.

关 键 词：广域电磁法 黄沙坪 深部探测 铅锌矿 隐伏岩体 

分 类 号：P631.325[天文地球—地质矿产勘探]