2D ERI for Groundwater Exploration in a Crystalline Basement Terrain, Abeokuta, Southwestern Nigeria
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Electrical resistivity imaging (ERI) is widely used for near-surface characterization in geophysical applications for hydrogeological, environmental and engineering investigations. This study involves the application of the two-dimensional (2D) electrical resistivity imaging (ERI) to delineate structures that are suitable for groundwater occurrence in a crystalline basement complex terrain. The dipole-dipole array, which is sensitive to weathered and fractured zones commonly associated with groundwater accumulations in a basement complex, was deployed for the measurements. The survey was conducted to locate possible points for siting productive boreholes in a site at Abeokuta, southwestern Nigeria, as previous boreholes and wells drilled within the study site failed.
KeywordsNear-surface characterization Groundwater investigations Basement aquifers 2D ERI Southwestern Nigeria
The authors appreciate Covenant University management for providing conference support for the presentation of this conference paper.
- 1.Aizebeokhai, A.P., Olayinka, A.I., Singh, V.S.: Application of 2D and 3D geoelectrical resistivity imaging for engineering site investigation in a crystalline basement terrain, southwestern Nigeria. Environ. Earth Sci. 61(7), 1481–1492 (2010)Google Scholar
- 2.Aizebeokhai, A.P., Oyeyemi, K.D.: Geoelectrical characterisation of basement aquifers: the case of Iberekodo, southwestern Nigeria. Hydrogeol. J. 26(2), 651–664 (2018)Google Scholar
- 3.Loke, M.H., Chambers, J.E. Rucker, D.F., Kuras, O. Wilkinson, P.B.: Recent developments in the direct-current geoelectrical imaging method. J. Appl. Geophys. 95, 135–156 (2013)Google Scholar
- 4.Pous, J., Queralt, P., Chavez, R.: Lateral and topographic effects in geo-electric soundings. J. Appl. Geophys. 35, 237–248 (1996)Google Scholar
- 5.Dahlin, T., Zhou, B.: A numerical comparison of 2D resistivity imaging with ten electrode arrays. Geophys. Prospect. 52(5), 379–398 (2004)Google Scholar
- 6.Wiwattanachang, N., Giao, P.H.: Monitoring crack development in fibre concrete beam by using electrical resistivity imaging. J. Appl. Geophys. 75(2), 294–304 (2011)Google Scholar
- 7.Aizebeokhai A.P.: 2D and 3D geoelectrical resistivity imaging: theory and field design. Sci. Res. Essays 5(23), 3592–3605 (2010)Google Scholar
- 8.Loke, M.H., Barker, R.D.: Practical techniques for 3D resistivity surveys and data inversion. Geophys. Prospect. 44, 499–524 (1996)Google Scholar
- 9.Griffiths, D.H., Barker, R.D.: Two dimensional resistivity imaging and modelling in areas of complex geology. J. Appl. Geophys. 29, 211–226 (1993)Google Scholar
- 10.Wright, E.P.: The hydrogeology of crystalline basement aquifers in Africa. In: Wright, E.P., Burgess, W.G. (eds.) Hydrogeology of Crystalline Basement Aquifers in Africa. Geological Society Special Publications 66, 1–27 (1992)Google Scholar