Authors : Timothy Terngu Bem; Yemi S. Onifade; E. O. Agbalagba; V. B. Olaseni

Volume/Issue : Volume 11 - 2026, Issue 5 - May

Google Scholar : https://tinyurl.com/sjsaasvn

Scribd : https://tinyurl.com/decn5c2h

DOI : https://doi.org/10.38124/ijisrt/26May1888

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Abstract : A two-dimensional (2D) electrical resistivity survey and radiometric assessment of soil lithology were conducted in Forest Rayfield to investigate subsurface conditions, groundwater potential, and possible groundwater vulnerability associated with geological formations and mining activities. The electrical resistivity survey was carried out along a single profile using hybrid schlumberger-wenner array configuration. Apparent resistivity data gotten from the field were iteratively converted using RES2DINV to produce 2D resistivity sections for subsurface interpretation. The interpreted resistivity model identified Zone E1 extending from the surface to a depth of approximately 12 m, with resistivity values ranging from 254 to 578 Ωm. Zone E1 therefore represents a transition zone between the weathered layer and fresh basement granite that is suitable for groundwater flow and storage. The most suitable location for groundwater development was identified at a lateral distance of 30–38 m along the profile and at depths greater than 40 m.

Keywords : Radiometric Analysis; Groundwater Potential; ERT; Basement Complex; Contamination Assessment.

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