瞬变电磁法探测德尔尼钴铜矿的模拟与试验  

THE APPLICATION OF THE TRANSIENT ELECTROMAGNETIC METHOD TO NUMERICAL CALCULATON AND FIELD TEST OF THE DE'ERNI COBALT-COPPER ORE DEPOSIT

作　　者：王凯[1] 吕学成 赵金明 陈博[1] 陈向阳[1] 

机构地区：[1]西安地质矿产研究所,陕西西安710054 [2]西北有色地质勘查局物化探总队,陕西西安710068 [3]西北有色地质勘查局717总队,陕西宝鸡721004

出　　处：《物探与化探》2008年第4期366-369,共4页Geophysical and Geochemical Exploration

摘　　要：通过设计地电模型,进行模拟计算,分析用瞬变电磁法探测矿体的有效性。在已知矿区进行的瞬变电磁剖面试验,发现在致密块状含铜黄铁矿体上获得异常强度大,反演计算断面低电阻率特征明显,试验方法效果好,可以用于进一步外围找矿。The De＇erni copper and cobalt ore deposit was found in the 1950＇s and has been explored since then. Nevertheless, no breakthrough has been achieved near the main ore body. It is hence necessary to find some effective geophysical methods to solve the difficulty. By means of numerical calculation and field test, this paper deals with the availability of TEM in detecting underground ore bodies. Tests with TEM show that strong anomalies appear over massive copper-bearing pyrite ore bodies, and low resistivity is obvious on the cross section through inversion. Based on these achievements, the authors consider that TEM is a useful method in search for ore bodies in the vicinity of known ore deposits.

关 键 词：钴铜矿 瞬变电磁法 地电模型 外围找矿 

分 类 号：P631.3[天文地球—地质矿产勘探]