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2013 (Vol. 6, Issue: 18)
Article Information:

Vertical Electrical Sounding Investigation for Delineation of Geoelectric Layers and Evaluation of Groundwater Potential in Ajagba, Asa and Ikonifin Localities of Ola Oluwa Local Government Area of Osun State, South Western Nigeria

M. Onimisi, A. Daniel and M.S. Kolawole
Corresponding Author:  M. Onimisi 

Key words:  Basement, geoelectric layers, groundwater, layer thickness, resistivity, survey,
Vol. 6 , (18): 3324-3331
Submitted Accepted Published
July 20, 2012 November 29, 2012 October 10, 2013
Abstract:

Vertical Electrical Sounding (VES) surveys were carried out at Ajagba, Asa and Ikonifin communities in the north of Ola Oluwa local government area of Osun state, Nigeria in order to delineate the geoelectric layers in the area as well as evaluate the groundwater potential. The area is in the basement complex terrain of Nigeria where the occurrence of groundwater is highly unpredictable and hence requires the use of hydrologic, geophysical and geologic surveys to achieve success in groundwater development programs. The survey delineated a maximum of four geoelectric layers which may be interpreted to correspond to four geologic layers viz the topsoil, weathered basement, partly weathered/fractured basement and the fresh basement. The weathered basement and the partly weathered/fractured basement layers constitute the aquifer units. The partly weathered/fractured layer is significant in enhancing the ground water potential in this area because of its relatively low resistivity resulting from its high fracture frequency. The ground water potential in the area varies from medium to high. Groundwater development is therefore feasible in these communities.
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  Cite this Reference:
M. Onimisi, A. Daniel and M.S. Kolawole, 2013. Vertical Electrical Sounding Investigation for Delineation of Geoelectric Layers and Evaluation of Groundwater Potential in Ajagba, Asa and Ikonifin Localities of Ola Oluwa Local Government Area of Osun State, South Western Nigeria.  Research Journal of Applied Sciences, Engineering and Technology, 6(18): 3324-3331.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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