大功率激电在江西省德兴市某铜银多金属矿区的找矿勘查应用  

Application of high power IP in the exploration of a copper-silver polymetallic mining area in Dexing City of Jiangxi

作　　者：黄文清 HUANG Wenqing(Geological Brigade No.6 of Jiangxi Geological Bureau,Yingtan 335000,Jiangxi,China)

机构地区：[1]江西省地质局第六地质大队,江西鹰潭335000

出　　处：《矿产与地质》2022年第5期1011-1017,1040,共8页Mineral Resources and Geology

基　　金：江西省地质勘查基金项目(编号:20180007)资助。

摘　　要：江西省德兴市某铜银多金属矿为赋存于火山角砾岩的破碎带蚀变岩型多金属矿床。通过开展大功率激电中梯扫面工作,圈定了1处条带状高极化异常体,与地表发现的矿(化)体吻合较好,结合激电测深异常断面特征,查明了矿(化)体的赋存位置,明确了找矿范围。经钻探深部验证,发现了隐伏的铜银矿(化)体,与异常部位基本对应,表明激发极化法对本区寻找铜银多金属矿是行之有效的,可为类似矿区开展含硫化物铜银多金属矿勘查提供很好的借鉴。A copper-silver polymetallic deposit in Dexing City, Jiangxi Province is hosted at the volcanic breccia which belongs to the fracture zone altered rock type polymetallic deposit. A strip highly polarized anomaly body is delineated by high-power IP scanning work, which is in a good agreement with the mineralized body found on the surface. Combined with the anomaly characteristics of IP sounding section, the occurrence location of the mineralization body is identified, and the prospecting target area is defined. Through the drilling verification at the deep place in the mining area, the concealed Cu-Ag ore body is found out, which basically corresponds to the geophysical anomaly position. It is shown that the induced polarization method is effective for the exploration of copper-silver polymetallic deposit in this area and it can provide a good reference for similar mining areas to carry out the exploration of copper-silver polymetallic sulfide deposit.

关 键 词：铜银多金属矿 大功率激电 激电测深 极化率 江西省德兴市 

分 类 号：P631.3[天文地球—地质矿产勘探]