近场源法在非洲旱季金矿普查中的应用  

Application of near field source method in the general survey of gold deposits in dry season in Africa

作　　者：周耀质 盛威 刘冬勤 谢玉福 李辉 ZHOU Yao-zhi;SHENG Wei;LIU Dong-qin;XIE Yu-fu;LI Hui(No.1 Geological Brigade of Hubei Provincial Geological Bureau,Daye 435100,China)

机构地区：[1]湖北省地质局第一地质大队,湖北大冶435100

出　　处：《世界有色金属》2023年第13期211-213,共3页World Nonferrous Metals

摘　　要：本文介绍了在非洲旱季时接地条件不利、供电困难、一次场随距离衰减快,应用时间域激电中间梯度装置扫面困难情况下,选择使用近场源法的可行性;并在金矿普查项目中与地质填图相配合快速查明区内岩层及构造的分布,取得了良好的应用效果。This paper introduces the feasibility of using the near-field source method when the African dry season is unfavorable for grounding conditions,difficult for power supply,fast attenuation of the primary field with distance,and difficult to scan the surface with the time domain IP intermediate gradient device;In addition,the distribution of rock strata and structures in the area has been quickly identified in combination with geological mapping in the gold prospecting project,and good application results have been achieved.

关 键 词：近场源法 旱季 接地电阻 石英脉 金矿 

分 类 号：P618.51[天文地球—矿床学]