Evaluation of Aquifer Hydraulics using Electrical Resistivit | 16759
International Research Journals

International Research Journal of Geology and Mining

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Evaluation of Aquifer Hydraulics using Electrical Resistivity Method: A case of Nsugbe sandstone, Anambra State, Southeastern Nigeria


Igwebuike G. Ndubuisi, Nwatarali N. Alex, Okonkwo C. Austin, Akinola A. Sunday

The Evaluation of Aquifer Hydraulics of Nsugbe Sandstone within Nsugbe town using the electrical resistivity method had been carried out. A total of Ten (10) Vertical Electrical Sounding (VES) was acquired using the high resolution ABEM Signal Averaging System (SAS 1000) Resistivity meter employing the Schlumberger array configuration. Data processing and interpretation was done using the INTERPEX resistivity software. From the interpreted layer model, five to six layers were delineated. Inferred lithology indicates shale/clay – sandstone subsurface sequences, with a depth of 50meters to water table. Computed transverse resistance and longitudinal conductance were utilized in the evaluation of aquifer hydraulics. Various contour maps were constructed in order to show the variation of the aquifer parameters computed. The computed aquifer parameters compared with the available pump-test data show slight similarities proving the authenticity of the technique. This study has shown that the Nsugbe Sandstone is moderately potential.

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