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Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS)


Article Title: Hydrogeophysical Evaluation of the Groundwater Potential of Afe Babalola University Ado-Ekiti, Southwestern Nigeria
by Oladimeji L. Ademilua and Akin B. Eluwole

Afe Babalola University Ado-Ekiti (ABUAD) was investigated using the electrical resistivity method of geophysical prospecting with a view to evaluating the groundwater potential of the University. The purpose of the research is to assist the university in locating optimum areas where it could focus for the siting of productive groundwater schemes in finding solution to the problem of water supply which it is experiencing as a result of its ever increasing population and infrastructures. Seventy-one (71) Vertical Electrical Sounding (VES) stations were occupied within the campus using the Schlumberger electrode array, with half-current electrode spacing (AB/2) varying from 1100 m. Depth sounding curves were obtained from quantitative interpretations involving partial curve-matching and computer assisted 1-D forward modeling. The characteristic curves observed within the area were the 3-layer, 4-layer and 5-layer types, with percentage occurrence of 34, 56 and 10 respectively. Layer thicknesses and resistivities presented on the curves showed that the weathered basement and fractured basement constitute the main aquifer types that exist within the study area. Maps were prepared for the weathered/fractured layer resistivities, thicknesses, overburden thickness and the bedrock topography. These maps were synthesized and integrated for the production of the groundwater potential map which was eventually used for the groundwater potential classification of the study area into good, moderate and poor groundwater potential zones.
Keywords: electrical resistivity, curves, aquifer, fractured, basement.
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ISSN: 2141-7016

Editor in Chief.

Prof. Gui Yun Tian
Professor of Sensor Technologies
School of Electrical, Electronic and Computer Engineering
University of Newcastle
United Kingdom



Copyright © Journal of Emerging Trends in Engineering and Applied Sciences 2010