Geophysical Investigation of Ground Water Potential in Basement Terrain, Okene North Central, Nigeria

This study was carried out to investigate the ground water potential in some selected locations in Ageva,
Okene district of Nigeria. A total of 8 vertical electrical sounding was conducted using the Abem Terrameter
(SAS 1000).The data obtained were subjected to interpretation by partial curve matching and then by
computer iteration and the result correlated with records from existing wells. A total of 4 geoelectric layers
namely: top soil, weathered layer, sandy clay Fresh basement was delineated in this study. The depth to
aquifer was obtained between 5.0 to 18.0 m from the surface. While the resistivity of the aquifer ranged
between 33.0 to 273 Ωm. The area is a high ground water potential especially since there is thick overburden
and highly fractured basement in the subsurface.