物探方法寻找隐伏岩浆岩型铜镍矿床  

Exploration of Hidden Magmatic Type Cu-Ni Deposits by Geophysical Methods

作　　者：杨庆华[1] 张小路[1] 王钟[1] 柯国秋[1] 邹仁辉[1] 

机构地区：[1]桂林理工大学地球科学学院,广西桂林541004

出　　处：《桂林理工大学学报》2010年第2期208-216,共9页Journal of Guilin University of Technology

基　　金：国家"十一五"科技支撑计划项目(2006BAB01B08)

摘　　要：岩浆岩型铜镍矿床与超基性岩体密切相关,采用高精度磁测法及大功率TEM法,对金川Ⅰ、Ⅱ矿区已知矿深边部及下盘进行了探测,并对隐伏超基性岩体及含矿性作出了评价。在矿区南延普查区,对地表基性-超基性岩地质地球化学异常区,采用高精度磁测圈出了可能存在的中深隐伏超基性岩体异常带。在异常带上选择M-2-4异常段,进行大功率TEM探测,发现了深部低阻异常地段,为南延区深部找矿前景的评价提供了依据。Cu-Ni magmatic deposit is related to ultrabasic rock mass.The method of high-power TEM and high-precision magnetic measurement is used in the deep part and lower wall of known mine in Jinchuan Ⅰ and Ⅱ ore area.The hidden ultrabasic rock mass and their ore potentiality are evaluated.Some abnormal belts of mid-deep ultrabasic rock mass are found by high-precision magnetic measurement in the geological and geochemical anomaly region of mafic-ultramafic rock,in the south exploration area.Deep abnormal zone low resistivity is discovered by high-power TEM prospecting in M-2-4 magnetic anomaly belt.

关 键 词：铜镍矿 大功率瞬变电磁法(TEM) 高精度磁测 找矿模式 

分 类 号：P631.325[天文地球—地质矿产勘探]