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DETECTION OF LATERAL VARIATIONS IN GEOLOGICAL STRUCTURES USING ELECTRICAL RESISTIVITY GRADIENT PROFILING 1
Author(s) -
SHETTIGARA V. K.,
ADAMS W. M.
Publication year - 1989
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1989.tb02208.x
Subject(s) - electrical resistivity and conductivity , hydrogeology , geology , volcano , igneous petrology , electrical resistivity tomography , dike , geophysics , economic geology , mineralogy , petrology , volcanism , telmatology , engineering geology , seismology , geotechnical engineering , tectonics , physics , quantum mechanics
Hydrogeological problems which involve the determination of lateral variations in structures or physical properties may be solved with electrical resistivity gradient profiling if there are significant variations in electrical resistivity, spatially or temporally. The method is explained, evaluated for sensitivity, compared with other methods, and applied to the location of volcanic dike zones that are impounding an anomalous water body near Schofield, Oahu, Hawaii. From the electrical soundings and other independent data, the lateral positions of the boundaries have been refined and their nature estimated.