Geoelectrical Resistivity Approach to Groundwater Potential Mapping: A Case Study of Ginti Community, Ikorodu, Lagos

Authors

  • Semiu Salau
    Lagos State University of Science and Technology
  • Saheed K. Ishola
    University of Lagos
  • Rafiu B. Adegbola
    Lagos State University of Science and Technology
    Lagos State University
  • Adeyemi V. Kuyinu
    Lagos State University of Science and Technology

Keywords:

Groundwater, Inverted Resistivity section, Dazarouk parameters, Aquifer units, Lithology

Abstract

Groundwater potential of Ginti community was investigated using geophysical electrical resistivity method. Both the two dimensional (2D) electrical resistivity measurements and Vertical Electrical Soundings were carried out to delineate and identify fresh water aquifers in the area. In order to achieve these objectives, the 2-D electrical resistivity measurements using the Wenner-Schlumberger array along four traverses, each of length 200 m, and twenty-nine VES using the Schlumberger configuration with maximum (AB/2)in the range of 350 to 500 m, were manually carried out. The results of the 2-D resistivity measurements as inverted resistivity models (IRM) showed that three zones were delineated in terms of resistivity distributions. They were the high resistivity zones, the intermediate and the low resistivity zones represented. The VES results presented as geoelectric sections revealed that between four to six layers were delineated. Interpretation of the results was constrained using available borehole data obtained from the area. The lithology units delineated were topsoil (lateritic), lateritic clayey sand, clayey sand and sand with variations in their resistivity. Two aquifer types were identified; a shallow aquifer units which occurred between depths of about 2 to 45 m with thicknesses ranging from 2 to 44 m throughout the study area, and the second regarded as the deep aquifer units, it occurred between depths of about 53 to 176 m. The DarZarouk parameters computed in order to zone the aquifer characteristics for the groundwater potential suggested that three potential zones namely; the poor, low and moderate groundwater zones were classified.

Dimensions

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Published

2025-09-30

How to Cite

Geoelectrical Resistivity Approach to Groundwater Potential Mapping: A Case Study of Ginti Community, Ikorodu, Lagos. (2025). Nigerian Journal of Applied Physics, 1(1), 125-142. https://doi.org/10.62292/njap-v1i1-2025-24

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Vol. 1 No. 1 (2025): Nigerian Journal of Applied Physics - Vol. 1 No. 1

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How to Cite

Geoelectrical Resistivity Approach to Groundwater Potential Mapping: A Case Study of Ginti Community, Ikorodu, Lagos. (2025). Nigerian Journal of Applied Physics, 1(1), 125-142. https://doi.org/10.62292/njap-v1i1-2025-24

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