CSAMT法在东岗铜、铁矿勘查中的应用  

The application of CSAMT to the prospecting for Cu-Fe orebodies in the Donggang ore district

作　　者：王振亮[1] 林天亮[1] 蔡永文[1] 鲁瑞君[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所矿产资源室,河北廊坊065000

出　　处：《物探与化探》2015年第2期268-272,共5页Geophysical and Geochemical Exploration

基　　金：中国地质调查局技术攻关研究项目(1212010916029)

摘　　要：以CSAMT法在东岗铜、铁矿勘查为例,结合地质及物性资料,圈定了岩体的分布情况,为下一步地质工作及钻孔布置提供了可靠的物探依据。经过钻孔及重力资料的验证,确定了研究区的铜、铁矿主要产于角砾岩中,铁矿一般位于低电阻率中心地带,电阻率在20Ω·m以下,而铜矿位于相对低电阻率地带,电阻率在20~80Ω·m之间。Taking the CSAMT method in the exploration of Cu-Fe ore deposits in Donggang area as an example and combined with geological and physical conditions,the authors delineated the distribution of rock body and provided the reliable basis for further geological work and layout of drill holes. Drilling and gravity validation reveals that Cu-Fe orebodies are mainly produced in breccia,Fe orebodies are generally located in the core of the low resistivity zone with the resistivity below 20 Ω·m,and Cu orebodies are located in the relatively low resistivity zone with the resistivity from 20 Ω·m to 80 Ω·m.

关 键 词：CSAMT 二维反演 铜/铁矿 东岗矿区 资源勘察 

分 类 号：P631[天文地球—地质矿产勘探]