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Abstract
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Article Information:
Geoelectric Investigation of Groundwater Resources in Parts of Bayelsa State, Nigeria
K.S. Okiongbo and G. Ogobiri
Corresponding Author: Kenneth S. Okiongbo
Submitted: 2011 March, 22
Accepted: 2011 May, 13
Published: 2011 November, 10 |
Abstract:
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Ten Schlumberger Vertical Electrical Soundings (VES) were carried out in parts of Bayelsa State,
Nigeria to investigate the subsurface layering with the aim of determining the configuration of the aquifer in
the area and thus provide a systematic scientific basis for the sitting of prolific abstraction water boreholes using
a maximum current electrode separation of about 400-500 m. The data obtained was interpreted by computer
iterative modeling using Interpex 1D U.S.A. The most prominent type curve is the H making up the type curve
combinations. The results of the study show a laterally and vertically varying succession of high and low
resistive geoelectric layers through out the whole area. This indicates sandy formation with intercalations of
clay bodies which is typical of the complex depositional environment of the area. Four to five geoelectric layers
were identified and layer four is the aquiferous horizon with resistivity values ranging between 12.7-2747 Ωm.
The thickness of this layer ranges between 4.5-113.9 m and consists of fine to medium grained sand. Aquifers
occur at different depths and they all have a rather irregular distribution and thickness. A value of 9.07 m/day
was obtained as a mean hydraulic conductance for the area.
Key words: Geoelectric, resistivity, schlumberger configuration, vertical electric sounding, , ,
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Abstract
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Cite this Reference:
K.S. Okiongbo and G. Ogobiri, . Geoelectric Investigation of Groundwater Resources in Parts of Bayelsa State, Nigeria. Research Journal of Environmental and Earth Sciences, (6): 620-624.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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