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Groundwater potential assessment in a sedimentary terrain, southwestern Nigeria

  • Ahzegbobor P. Aizebeokhai
  • Kehinde D. Oyeyemi
  • Emmanuel S. Joel
Original Paper

Abstract

Geoelectrical resistivity techniques are increasingly being applied in addressing a wide range of hydrological, environmental, and geotechnical problems. This is due to their effectiveness in near-surface characterization. In the present study, a suite of vertical electrical soundings (VESs) was integrated with 2D geoelectrical resistivity and time-domain induced polarization (IP) imaging to characterize the near-surface and delineate the underlying aquifer in a sedimentary terrain. The geophysical survey was conducted as part of preliminary studies to evaluate the potential of groundwater resource in Iyana-Iyesi and Canaan Land area of Ota, southwestern Nigeria. A high-yield confined sandy aquifer overlain by a low-yield aquitard was delineated; overlying the aquitard is a very resistive and thick layer that is predominantly composed of kaolinitic swelling clay intercalated with phosphate mineral.

Keywords

Groundwater investigation Resistivity and IP imaging Near-surface geophysics Subsurface characterization 

Notes

Acknowledgments

The authors wish to thank Covenant University Management for providing the resources to conduct this study. Our profound appreciation goes to following undergraduate students who helped with the field data collection: Nelson-Atuonwu Cherish, Liadi Esther, Shotuyo Yewade, Lesinwa Fortune, Ijioma Nanna, Utor Joy, Tucker Miata, Uye Perpetual, and Ukabam Chukwuemeka.

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Copyright information

© Saudi Society for Geosciences 2016

Authors and Affiliations

  • Ahzegbobor P. Aizebeokhai
    • 1
  • Kehinde D. Oyeyemi
    • 1
  • Emmanuel S. Joel
    • 1
  1. 1.Physics Department, College of Science and TechnologyCovenant UniversityOtaNigeria

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