SIGNAL CONTRIBUTION SECTIONS AND THEIR USE IN RESISTIVITY STUDIES

被引:60
作者
BARKER, RD
机构
[1] Applied Geophysics Research unit, Department of Geological Sciences, Birmingham University, Birmingham
来源
GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 1979年 / 59卷 / 01期
关键词
D O I
10.1111/j.1365-246X.1979.tb02555.x
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Summary. The electrostatic analogue to direct current resistivity prospecting is employed to construct vertical sections through lines of four electrodes. These show the relative contributions made by individual volume elements of earth to the total potential difference measured between the two potential electrodes. Signal contribution sections enable a comparison of the response of various electrode configurations to subsurface conditions and help to explain, for example, why the dipole—dipole configuration is so suited to horizontal profiling and the Wenner and Schlumberger configurations to vertical sounding. The spurious response of apparent resistivity curves to near surface lateral resistivity variations is also explained with particular attention being given to the Wenner tripotential configurations. Copyright © 1979, Wiley Blackwell. All rights reserved
引用
收藏
页码:123 / 129
页数:7
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