Pakistan Journal of Geology (PJG)

Journal: Pakistan Journal of Geology (PJG)
Author: Adedokun Damilola Rukayat, Ishola K.S., Ilugbo Stephen Olubusola, Alli Adnan Karram, Ibitomi Michael Adewale

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/pjg.01.2024.44.56

Groundwater Investigation was carried out using Electrical Resistivity Method at Sanngo Elere, Eruwa. There are many hand-dug wells in the study area but there is no evidence that groundwater exploration has been carried out in the area. Vertical Electrical Sounding (VES) was carried out in the area with the aim of determining viable aquiferous zone. Twenty (20) VES were carried out using Schlumberger electrode array configuration. The VES data generated were processed and interpreted using partial curve matching method and computer iterative modelling software called win resist. The interpreted data revealed three to five geoelectric sections consisting of the topsoil with resistivity ranging from 149 to 1407Ωm. Weathered/party weathered layer with resistivity and thickness values ranging from 131 to 2082Ωm and 1.0 to 14.2m respectively. A partly weathered/fresh basement rock with resistivity and thickness values that ranges from 45 to 3297Ωm and 2.6 to 21.6m. also a fresh basement rock with resistivity values that range from 1020 – 8744Ωm. On the bases of the resistivity and thickness of fracture zone, twelve out of 20 VES points are promising location for prolific borehole. The values of computed reflection coefficient were further used to confirm water bearing fractures. Electrical Resistivity Survey has been successfully utilized for groundwater exploration in the study area.