EH4音频大地电磁方法在清白山东寻找韧性剪切带型金矿的应用  

Application of EH4 Magnetotelluric Method in Exploring Ductile Shear Zone Type Gold Deposits in QingBaiShanDong Area

作　　者：牛辉 李延清 胡尊平 代俊英 陈实 刘超 夏天 Niu Hui;Li Yanqing;Hu Zunping;Dai Junying;Chen Shi;Liu Chao;Xia Tian(Xinjiang institute of Geological Survey,Urumqi,Xinjiang,830000,China)

机构地区：[1]新疆维吾尔自治区地质调查院,新疆乌鲁木齐830000

出　　处：《新疆地质》2018年第1期128-133,共6页Xinjiang Geology

基　　金：新疆地质勘查基金新疆哈密磁海-黑山梁一带钨多金属矿远景调查项目(T14-2-LQ06)资助

摘　　要：清白山东金矿处于新疆北山裂谷系内,区域上发育多期次韧性剪切作用,其派生的次级构造蚀变带是控矿及容矿的重要构造,为金元素的迁移、富集提供了通道。使用EH4电磁测深方法,采用人工场源辅助天然场源,采集频带范围100 k Hz^10 Hz,对清白山东工区进行测深数据采集和二维反演运算,确定韧性剪切带中心及目标矿体位置,指导钻探工程。结果表明,EH4在寻找构造成矿类型和隐伏矿体具有广阔的应用前景。QingBaiShanDong gold mine is located in Beishan Rift Valley of Xinjiang,Regional fractures developed multi-stage ductile shearing,the derived secondary tectonic alteration zone is the important structure in controlling ore and bearing ore,which provided a channel for migration and enrichment of gold.The EH4 uses natural field source and artificial field source to collect data of frequency ranging from 100 kHz^10 Hz.Then the collected data was processed by 2D inversion operation in order to determine the central location of ductile shear zone and target orebody.The result shows that the application of the EH4 in exploring tectonic mineralization type and concealed orebodies has a broad prospect.

关 键 词：清白山东 EH4 韧性剪切带 金矿 

分 类 号：P631.325[天文地球—地质矿产勘探]