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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1474

Title: Detection of sinkholes using 2D electrical resistivity imaging
Authors: Van Schoor, M
Keywords: Cavities
Geoelectric imaging
Resistivity tomographies
Issue Date: Jul-2002
Publisher: Elsevier Science BV
Citation: Van Schoor, M. 2002. Detection of sinkholes using 2D electrical resistivity imaging. Journal of applied geophysics, vol 50(4), pp 393-399
Abstract: Sinkholes in dolomitic areas are notoriously difficult geophysical targets, and selecting an appropriate geophysical solution is not straightforward. Electrical resistivity imaging or tomography (RESTOM) is well suited to mapping sinkholes because of the ability of the technique for detecting resistive features and discriminating subtle resistivity variations. RESTOM surveys were conducted at two sinkhole sites near Pretoria, South Africa. The survey areas are located in the dolomites of the Lyttelton Formation, which forms part of the Malamani Subgroup and Chuniespoort Group of the Transvaal Super group. The survey results suggest that RESTOM is an ideal geophysical tool to aid in the detection and monitoring of sinkholes and other subsurface cavities.
URI: http://hdl.handle.net/10204/1474
ISSN: 0926-9851
Appears in Collections:Mining and geoscience
General science, engineering & technology

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