综合物探方法在大兴多金属矿勘查中的应用  

Application of integrated geophysical exploration method to the prospecting for the Daxing polymetallic mine

作　　者：曲鹏志 潘月栋 杨京勋 刘明辉[1] 金哲洙 QU Peng-zhi;PAN Yue-dong;YANG Jing-xun;LIU Ming-hui;JIN Zhe-zhu(The Sixth Geological Survey of Jilin Province,Yanji 133001,Jilin,China)

机构地区：[1]吉林省第六地质调查所,吉林延吉133001

出　　处：《吉林地质》2021年第1期39-44,55,共7页Jilin Geology

摘　　要：大兴多金属矿勘查区外围覆盖大面积碱长花岗岩与花岗闪长岩,勘查区内五道沟岩群发育,有较好的成矿条件。首先使用高精度磁测确定岩性界线与构造,大致圈定异常范围;然后在磁法初步确定的异常范围内开展激电中梯工作,验证异常的电性特征,缩小异常靶区;最后采用激电测深工作对上述结果在纵深断面上进行查证,获取最佳的异常靶区和信息。根据物探方法不同的适用性,合理采用不同方法应用于解决不同的问题,综合解译推断,可获得较好的勘查效果。The periphery of the Daxing polymetallic mine exploration area is covered with a large area of alkali feldspar granite and granite diorite,and Wudaogou rock group is well developed in the exploration area,which has good ore-forming conditions.Firstly,the lithologic boundary and structure were determined by high-precision magnetic survey,and the anomaly scope was delineated roughly.Then the IP intermediate gradient was carried out within the initial abnormal range determined by magnetic method to verify the electrical characteristics of the abnormal and reduce the abnormal target area.Finally,IP sounding was used to verify the above results on the section to obtain the best abnormal target area and information.According to the applicability of different geophysical exploration methods,reasonable application of different methods to solve different problems,comprehensive interpretation and inference,can obtain better exploration results.

关 键 词：综合物探 高精度磁测 激电中梯 激电测深 

分 类 号：P631[天文地球—地质矿产勘探]