keywords: Resistivity, Schlumberger array, iso-resistivity, geo-electric section
The study examined Hydro-geo-electrical/geological conditions of the area with the view of delineating potential areas for groundwater development. The resistivity method was employed and twenty one (21) vertical electrical sounding (VES) were conducted with spread of AB/2 = 100 m using the ABEM-SAS 300C Terrameter. The data obtained were interpreted by a computer iteration process using a software (INTERPEX). The resistivity values for this area range from 14.27 to 8772.82 Ωm while the thickness ranges from 0.137 to 30.0 m. Resistivity values corresponding to AB/2=10 and AB/2=50 m were taken and contoured. The profile of AA¹ and BB¹ were drawn and presented. The finding indicates that the area is generally underlain by three to four lithology units which include top lateritic soil, weathered/fractured basement, and the fresh basement. Based on the result obtained, the fractured /weathered basement makes up the aquiferous zone within the study area; hence the ground water potentials of the area have been inferred from these weak zones. Vertical electrical sounding points 7, 8, 10, 19 and 21 are considered to have the highest water bearing potentials within the study area and are therefore recommended for citing of boreholes.