Delineation of Aquifer Potential and Lithology from Geo-Electric Sounding in Idheze, Isoko North LGA of Delta State

J. C. Egbai, C. O. Aigbogun, R. E. Iserhien-Emekeme, Efeya Pius

Abstract


A geophysical survey was carried out using Vertical Electrical Sounding (VES) adopting Schlumberger configuration in Idheze community Isoko North LGA, of Delta State. Seven Vertical Electrical Sounding were carried out with a view to study the lithology and aquifer characterization of the area. The model parameters for the whole locations show four or five distinct geoelectric layers with VES 1, 3, and 5 having four geoelectric layers while VES 2, 4 ,6 and 7 have five geo-electric layers. The four geoelectric layers have the aquiferous positions in the third layer while the five layers earth have the aquiferous positions in the fourth layer. The lithology is made of lateritic top soil, clay, sandy clay, fine sand, smooth medium sand and coarse sand. The study further shows that the seven locations have good aquifer transmissivity and Boreholes could be constructed in any of the VES locations. Location 3 has be mapped as having the best aquifer transmissivity of 251m2/day while VES 6 has the least with aquifer transmissivity of 161.0m2/day.

 


Keywords


Transmissivity, Resistivity, Idheze, Geo-electric Sounding, lithology, aquifer parameters

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References


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