物探综合方法在临江市迎门岔找矿中的应用  

Application of the synthetic geophysical prospecting method in search for minerals,Yingmencha mining area,Linjiang City

作　　者：王信[1] 张辉[1] 张维山[1] 戴洪建 

机构地区：[1]吉林省地质调查院,吉林长春130061

出　　处：《吉林地质》2007年第3期40-47,共8页Jilin Geology

摘　　要：在临江市迎门岔矿区进行的1∶2万土壤化探发现了花岗斑岩体周边有以铜为主的化探异常,为评价该异常,投入了以地面高精度磁测和时间域激电两种物探方法。根据物探异常大体圈定了花岗斑岩体、闪长岩及周边矿化蚀变带的分布范围,并推断了矿化蚀变带在深部的产状。在随后的槽探和钻探工作中,花岗斑岩体周边发现了铜矿体,取得了较好的找矿效果。The anomaly （mainly Cu） around the granite--porphyry body is discovered in 1 ： 20 000 soil geophysical prospecting, Yingmencha mining area, I.injiang City. The ground high--precision magnetic measurement method and time--domain electromagnetic method are used for appraising this anomaly. The distributive range of granite--porphyry body, diorite and its surrounding mineralized alteration zone are roughly pin pointed on the basis of geophysical prospecting anomaly and inferring the occurrence of mineralized alteration zone in the deep. In the trenching and drilling afterwards, the Cu body around the granite--porphyry body is discovered, and obtaining a satisfied prospecting result.

关 键 词：珍珠门组 黄铁矿化 磁黄铁矿化 磁异常 激电异常 铜矿(化)体 

分 类 号：P632[天文地球—地质矿产勘探]