Use of four-electrode arrays in three-dimensional electrical resistivity imaging survey

The objective of this paper is to investigate the applicability of four-electrode arrays in 3D electrical resistivity imaging survey. A 3D resistivity imaging survey was carried out along fourteen parallel lines using dipole-dipole, Wenner-Schlumberger, and Wenner arrays with 2 m minimum electrode s...

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Bibliographic Details
Published in:Studia geophysica et geodaetica 2010-04, Vol.54 (2), p.299-311
Main Authors: Neyamadpour, Ahmad, Wan Abdullah, W. A. T., Taib, Samsudin
Format: Article
Language:English
Subjects:
Arrays
Atmospheric Sciences
Earth and Environmental Science
Earth Sciences
Electric currents
Electrical resistivity
Electrodes
Geophysics/Geodesy
Polls & surveys
Structural Geology
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Summary:The objective of this paper is to investigate the applicability of four-electrode arrays in 3D electrical resistivity imaging survey. A 3D resistivity imaging survey was carried out along fourteen parallel lines using dipole-dipole, Wenner-Schlumberger, and Wenner arrays with 2 m minimum electrode spacings. Roll-along measurements using a line spacing of 1 m were carried out covering a grid of 20 × 14 electrodes. The 3D least squares algorithm, based on the robust inversion method, was used in the inversion of the 3D apparent resistivity data sets. The results show that the 3D electrical resistivity imaging survey using the Wenner-Schlumberger and the dipole-dipole arrays, or the Wenner and the dipole-dipole arrays, in combination with an appropriate 3D inversion method, can be highly useful when the site conditions do not allow using the pole-pole or pole-dipole arrays.
ISSN:0039-3169
1573-1626
DOI:10.1007/s11200-010-0016-8