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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 21, No. 4, 2017, pp. 682-690
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Bioline Code: ja17073
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 21, No. 4, 2017, pp. 682-690
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Geoelectric Investigation for Groundwater Prospects in Ejeme-Aniogor and Environs, Aniocha- South Local Government Area, Delta State, Nigeria
CHINYEM, FI
Abstract
Geoelectric investigation for groundwater prospects in Ejeme-Aniogor and
environs, Aniocha- South Local Government Area of Delta State, Nigeria was carried out with a
view to determining the near subsurface lithologies and depths; as well as thickness of the
various aquiferous zones/units in the study area. Fourteen vertical electrical soundings (VES)
technique, employing the Schlumberger configuration were used in investigating the
groundwater prospects, with maximum current electrode spacing of 500m. The acquired field
data were interpreted quantitatively by partial curve matching and computer iteration. The result
showed six to eight geoelectric layers with resistivities ranging from 120 to 1700 Ωm for the
topmost layer and 276 to 163000 Ωm for the bottommost layer. The result also revealed that the
depths to the various aquiferous zones ranged from 28.5 to 162 m while the thickness of the
aquiferous zones ranged from 20.3 to 58.7 m. The aquiferous units in the study area were mostly
confined and the results obtained from the study were found to be consistent with the lithologic
logs obtained from borehole drilled in the study area. A generalized depth to the water table
(acquiferous zones) cannot be deduced for the study area because it varied from one locality to
another. However, the result showed that the area has good prospects for groundwater
development.
Keywords
Geoelectric investigation; groundwater prospects; Ejeme – Aniogor; aquiferous zones; groundwater development.
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