Application of Geoelectric and Hydrogeological Methods in Delineation of Aquifer Potential and Protective Capacity in Parts of Asaba Metropolis, Niger Delta Region of Nigeria

Authors

Keywords:

Depth, Resistivity, Thickness, Layer, Curve

Abstract

This study evaluated aquifer potential and protective capacity in parts of Asaba Metropolis, using fifteen Vertical Electrical Soundings (VES) with the Schlumberger array. The ABEM Terrameter SAS 1000 was used and the maximum current electrode spacing (AB/2) was 300 m. Geoelectrical data were interpreted using WINRESIST and integrated with Dar-Zarrouk parameters to estimate hydraulic conductivity (K) and transmissivity (T). The subsurface comprises three to six geoelectric layers. Aquifer resistivity ranges from 156.0 Ωm to 7365.2 Ωm, aquifer thickness from 3.0 m to 33.7 m, and aquifer depth from 4.9 m to 39.8 m. Longitudinal conductance (S) varies from 0.0111 ℧ to 0.1236 ℧, indicating predominantly poor overburden protective capacity and high vulnerability to surface contamination. Hydraulic conductivity ranges from 0.095 m/day to 3.477 m/day, while transmissivity varies from 0.602 m²/day to 53.353 m²/day, with the highest values occurring in the southwestern sector, indicating the most productive aquifers. High transverse resistance, anisotropy and fracture porosity further delineate favourable groundwater-bearing zones. This study concludes that the integrated geoelectrical approach effectively identified aquifer geometry, groundwater potential and vulnerability, providing a scientific basis for borehole siting, groundwater protection and sustainable water-resource management in parts of Asaba and similar Niger Delta sedimentary terrains.

Author Biographies

Francis Onyemaechi Chukwusa

Physics Department, Faculty of Science, Dennis Osadebay University, Asaba. Lecturer.

Yemi Sikiru Onifade

Physics Department, College of Science, Federal University of Petroleum Resources, Effurun. Professor.

Victor Babasola Olaseni

Physics Department, College of Science, Federal University of Petroleum Resources, Effurun. Senior Lecturer.

Moses Oghenenyoreme Eyankware

Geology Department, Faculty of Science, Dennis Osadebay University, Asaba. Lecturer.

Dimensions

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Published

2026-08-01

How to Cite

Chukwusa, F. O., Onifade, Y. S., Olaseni, V. B., & Eyankware, M. O. (2026). Application of Geoelectric and Hydrogeological Methods in Delineation of Aquifer Potential and Protective Capacity in Parts of Asaba Metropolis, Niger Delta Region of Nigeria. Nigerian Journal of Physics, 35(4), 220-235. https://doi.org/10.62292/njp.v35i4.2026.673

Issue

Vol. 35 No. 4 (2026): Nigerian Journal of Physics - Vol. 35 No. 4

Section

Articles
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Copyright (c) 2026 Francis Onyemaechi Chukwusa, Yemi Sikiru Onifade, Victor Babasola Olaseni, Moses Oghenenyoreme Eyankware

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

Chukwusa, F. O., Onifade, Y. S., Olaseni, V. B., & Eyankware, M. O. (2026). Application of Geoelectric and Hydrogeological Methods in Delineation of Aquifer Potential and Protective Capacity in Parts of Asaba Metropolis, Niger Delta Region of Nigeria. Nigerian Journal of Physics, 35(4), 220-235. https://doi.org/10.62292/njp.v35i4.2026.673