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Groundwater potential assessment in a sedimentary terrain, southwestern Nigeria

Aizebeokhai, A. P. and Oyeyemi , Kehinde D. and Joel, E. S. (2016) Groundwater potential assessment in a sedimentary terrain, southwestern Nigeria. Saudi Society for Geosciences. p. 495.

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Geoelectrical resistivity techniques are increasingly being applied in addressing a wide range of hydrological, environmental, and geotechnical problems. This is due to their effectiveness in near-surface characterization. In the present study, a suite of vertical electrical soundings (VESs) was integrated with 2D geoelectrical resistivity and time-domain induced polarization (IP) imaging to characterize the nearsurface and delineate the underlying aquifer in a sedimentary terrain. The geophysical survey was conducted as part of preliminary studies to evaluate the potential of groundwater resource in Iyana-Iyesi and Canaan Land area of Ota, southwestern Nigeria. A high-yield confined sandy aquifer overlain by a low-yield aquitard was delineated; overlying the aquitard is a very resistive and thick layer that is predominantly composed of kaolinitic swelling clay intercalated with phosphate mineral.

Item Type: Article
Uncontrolled Keywords: Groundwater investigation . Resistivity and IP imaging . Near-surface geophysics . Subsurface characterization
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 16 Aug 2016 15:12
Last Modified: 28 Sep 2016 10:36

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