Evaluation of the Groundwater Potential in Pompo Village, Gidan Kwano, Minna Using Vertical Electrical Resistivity Sounding

Abstract

A study of groundwater potential of Pompo Village in the neighborhood of Gidan Kwano campus of Federal University of Technology, Minna, was carried out using Vertical Electrical Resistivity Sounding. A total of 12 Vertical Electrical Soundings (VES) were carried out across the area using the Schlumberger electrode array configuration. The sounding data was processed and interpreted using ZODDY and WINRESIST interpretation software. The underlying geo-electric section comprising topsoil, weathered basement, fractured basement and fresh basement was established. The Vertical Electrical Sounding curves revealed that the area is generally characterized by five geo-electric layers. The top soil layer is a highly resistive layer with thickness ranging from 0.3m to 1.6m. The second geo-electric layer is a resistive dry layer with thickness ranging from 0.9m to 4.3m. The weathered basement layer thickness varies from 0.9m to 9.1m. The fractured basement ranges from 2.1m to 16.4m in thickness, while the depth to basement varies between 4.9m and 25.3m. Out of the 12 VES carried out, 5 VES stations have been chosen as the most viable locations for the development of groundwater resources. Two types of aquifers, which are the weathered basement and fractured basement aquifer, have been delineated in this study. These aquifer units may have significant groundwater potential.

Geophysical investigation of low enthalpy geothermal potential and ground water reservoirs in the Sudano-Sahelian region of Cameroon

“…This method involves the supply of direct current or low-frequency alternating current into the ground through a pair of current electrodes and then to measure the resulting potential through another pair of electrode called potential electrodes (Amadi et al, 2011).…”

Delineation of the Aquifer in the Curin Basin, South of Zahedan City, Iran

“…Postal Code: 6361713198; Tel: +986712236185; Fax: +986714220109; Email: tahmasbi@behbahaniau.ac.ir It measures earth resistivity by passing an electrical current into the ground and measuring the resulting potentials created. This method involves the supply of direct current or low-frequency alternating current into the ground through a pair of electrodes and the measurement of the resulting potential through another pair of electrodes (potential electrodes) [22]. Because the current is known and the potential can be measured an apparent resistivity can be calculated.…”

Groundwater Investigation Using Geophysical Methods- A Case Study of Pydibhimavaram Industrial Area

“…Measurement of resistivity is, in general, a measure of water saturation and pore space connectivity. Resistivity measurements are associated with varying depths relative to the distance between the current and potential electrodes in the survey, and can be interpreted qualitatively and quantitatively in terms of a litho logic and/or geohydrologic model of the subsurface [6].Electrical resistivity method involves the supply of direct current or low-frequency alternating current into the ground through a pair of current electrodes and the measurement of the resulting potential through another pair of electrode called potential electrodes. Rock resistivity depends on a number of factors such as the amount of water present in fractures and features, porosity and the degree of saturation.…”