大功率激电在东天山大白地一带矿产普查中的应用  

Application of high power induced polarization in mineral survey in Dabaidi area of East Tianshan Mountain

作　　者：郭伟立[1,2] 冀显坤 白运[1] GUO Wei-li;JI Xian-kun;BAI Yun(Xi’an Center of China Geological Survey,Xi’an 710054,China;China-SCO Geosciences Cooperation Research Center,Xi’an 710054,China)

机构地区：[1]中国地质调查局西安地质调查中心,陕西西安710054 [2]中国-上海合作组织地学合作研究中心,陕西西安710054

出　　处：《世界有色金属》2022年第20期199-201,共3页World Nonferrous Metals

基　　金：中国地质调查局地质调查项目(DD20221804)、(12120114077601)。

摘　　要：东天山地区是新疆重要的矿产资源基地,但地质工作程度依然较低,有较大的找矿突破空间。前期通过利用大功率激电中梯进行普查扫面,查明研究区内电场特征,综合解译区内地质构造特征及岩体分布规律,最后优选一处物探异常组合特征明显、成矿部位有利地段进行综合评价。在该研究重点区开展大比例尺激电中梯和双边三极测深工作。通过大功率激电中梯工作圈定出三处高极化率异常,在激电异常中心位置布设了一条双边三极激电测深剖面,进一步揭示激电异常的空间展布特征,为钻孔布设提供参考依据。The East Tianshan Mountai region is an important base of mineral resources in Xinjiang, but the degree of geological work is still low. The geological structure characteristics and rock mass distribution in the area were comprehensively interpreted by induced polarization. The induced polarization and two side pole-dipole sounding were carried out in the key research area. Three high polarizability anomalies are delineated by means of high power induced polarization, and the two-side pole-dipole sounding profile is arranged at the center of IP anomaly, which further reveals the spatial distribution characteristics of IP anomaly, it can provide reference for drilling hole layout.

关 键 词：大功率激电 接地电阻 矿产勘查 双边三极测深 

分 类 号：P631.3[天文地球—地质矿产勘探]