International Journal of
Water Resources and Environmental Engineering

  • Abbreviation: Int. J. Water Res. Environ. Eng.
  • Language: English
  • ISSN: 2141-6613
  • DOI: 10.5897/IJWREE
  • Start Year: 2009
  • Published Articles: 347

Full Length Research Paper

Integration of very low-frequency electromagnetic (VLF-EM) and electrical resistivity methods in mapping subsurface geologic structures favourable to road failures

Ozegin K. O.
  • Ozegin K. O.
  • Department of Physics, Ambrose Alli University, Ekpoma Edo State, Nigeria
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Oseghale A.
  • Oseghale A.
  • Department of Physics, Ambrose Alli University, Ekpoma Edo State, Nigeria
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Okolie E. C.
  • Okolie E. C.
  • Department of Physics, Delta State University, Abraka Delta State, Nigeria
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Ujuanbi O.
  • Ujuanbi O.
  • Department of Physics, Ambrose Alli University, Ekpoma Edo State, Nigeria
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  •  Received: 19 April 2011
  •  Accepted: 29 June 2011
  •  Published: 19 July 2011

Abstract

An integrated geophysical survey involving very low-frequency electromagnetic (VLF–EM) and the dipole-dipole electrical resistivity methods was carried out along the Auchi-Ibillo road in Igarra, Nigeria with a view to examining factors responsible for road failures in the area. Analysis of very low frequency electromagnetic current density sections and dipole-dipole pseudo-sections were made along three traverses. The (VLF–EM) revealed the presence of conductive zones and the dipole-dipole pseudo-sections delineated low resistivity clay enriched, water absorbing sections and a linear fracture zone or joint. The delineated clay section and the fracture zone are the major geologic factors responsible for road failures in the area.

 

Key words: Electromagnetic, resistivity, Igarra, Nigeria, geologic factor, road failure.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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