Lithostratigraphic Characterization of the Subsurface in Ologbo Community using Wenner-Schlumberger Electrode Configuration of Electrical Resistivity Method
Keywords:Wenner-Schlumberger, Geoelectric, lithology, Lateritic clay
Wenner-Schlumberger electrode configuration of the electrical resistivity method of geophysical investigation was carried out in Ologbo Community Edo State Nigeria in order to characterize the subsurface geology in this location. The Petrozenith earth resistivity meter was used to measure the resistance offered by the subsurface in two different locations in this geophysical investigation. Sixty (60) Wenner-Schlumberger soundings were carried out in each of the areas. Data were collected and processed using Res2dinv software which produced an inverse model resistivity section which is the true resistivity of the subsurface and this was used to deduce the geological characteristics of the surveyed depth range. Interpretation of the inverse model resistivity section using knowledge of the geology of the study area and standard electrical resistivity of earth materials available in the literature indicates the presence of clayey sand, lateritic clay, laterite, sand and sandstone as the make-up of the subsurface geology of the study area.
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