电偶源频率电磁测深中的静位移现象及视电阻率曲线的畸变  

THE STATIC DISPLACEMENT AND THE DISTORTION OF APPARENT RESISTIVITY CURVES BY FEMS

作　　者：王书明[1] 林长佑[1] 杨长福[1] 陈军营[1] 罗东山[2] 吕福林[2] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]中国煤田地质总局甘肃综合普查队,甘肃天水741002

出　　处：《西北地震学报》2000年第1期40-46,共7页Northwestern Seismological Journal

摘　　要：以电偶源频率电磁测深 (FEMS)二维数字模拟为例 ,从理论上简略讨论了波区定义的 5种视电阻率的变化特征及静位移现象 ,定性分析了表面局部水平非均匀体对视电阻率曲线畸变的影响 .Based on two dimensional digital simulation of the frequency electromagnetic sounding with electric dipole supply,the variation characters and static displacement of five kinds of apparent resistivity in wave area are theoretically studied,and the effects of surface local lateral inhomogeneities on distortion of apparent resistivity curves are qualitatively analysed.

关 键 词：电磁测深 视电阻率 静位移 畸变效应 电偶源频率 

分 类 号：P631.325[天文地球—地质矿产勘探] P631.322[天文地球—地质学]