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American Journal of Innovative Research & Applied Sciences
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  | ARTICLES | Am. J. innov. res. appl. sci. Volume 6,  Issue 1, Pages 58-66 (January 2018)
Research Article
 
American Journal of innovative
Research & Applied Sciences 
ISSN  2429-5396 (Online)
OCLC Number: 920041286
|
| JANUARY | VOLUME 6 | N° 1  | 2018 |
Authors Contact

*Correspondant author and authors Copyright © 2018:

| Uti Ikitsombika Markus 1* | Udensi Emmanuel Emeka 1 | Mufutau Owolabi Jimoh 2 | and |  Mannir Muhammad 1 |
Affiliation.

1. Federal University of Technology | Department of Physics | Minna | Nigeria |
2. Federal University of Technology | Department of Geology | Minna | Nigeria |

This article is made freely available as part of this journal's Open Access: ID | Markus-ManuscriptRef.1-ajira100118 |
ABSTRACT

Background: Potable water supply has become a real challenge in Rafin-Yashi, Minna, Nigeria due to the basement complex rocks underlying the area, the massive infrastructural development which has led to a corresponding population growth. Potable water supply has been grossly inadequate to meet the ever increasing demand for this essential resource by inhabitants of the area and this has led to the dependence on groundwater from hand-dug wells or boreholes by individuals as their main source of potable supply since public water supply from government has proven over the years to be grossly inadequate and for the most part, non-existent. Objectives: Consequently, this study employs the Geoelectric method to investigate the groundwater potential at part of Rafin-Yashi, Minna, North Central Nigeria to outline the suitable aquifers for groundwater development. Methods: The methods used for this study was Electrical Resistivity Profiling (ERP) and Vertical Electrical Sounding (VES) of the Electrical Resistivity (ER) method. A total of two hundred (200) Electrical Resistivity Profiling points along ten (10) profiles A-J with inter profile and inter grid separation distance of 50 m were investigated using the Werner array configuration at electrode spacing of 30 m. Twenty (20) of the promising points from the Electrical Resistivity Profiling contour map were selected and investigated using the Vertical Electrical Sounding (VES) technique employing the Schlumberger array configuration. The data acquired were analyzed using partial curve matching and computer iteration technique using WinResist software and the data were interpreted to disclose different geoelectric layers that constitute the area. Results: The results revealed about 95% H- type curve and 5% K- type curve with three distinct geoelectric layers namely: the top soil, weathered/fractured basement and the fresh basement. The apparent resistivity of the first layer ranged between 18.5 Ωm - 706.6 Ωm with a corresponding thickness of 1.1 m - 4.8 m, second layer has apparent resistivity values of 16.8 Ωm - 591.6 Ωm with corresponding thickness of 4.8 m - 15.3 m and the third layer has apparent resistivity values of 19.2 Ωm - 7299.1 Ωm with an infinite thickness. Conclusions: VES stations B6, B9, C6, C7, D6, E6, E7, F6, F9, G9, H8, H9, I9, J8 and J9 with relatively high overburden thicknesses of 11.4 m, 12.7 m, 14.7 m, 18.0 m, 11.8 m, 11.2 m, 10.1 m, 13.1 m, 17.2 m, 12.1 m, 10.0 m, 10.6 m, 10.8 m, 18.5 m, 11.2 m and 11.5 m respectively having a corresponding very low to low resistivity values ranging between 50 - 250 Ωm at depth 45 m have been established to have high groundwater potential and thus, have been chosen as priority locations suitable for groundwater development.
Keywords: Geoelctric method, Electrical Resistivity profiling, Vertical Electrical Sounding, Wenner array, Schlumberger array, aquifer.
GEOELECTRIC INVESTIGATION OF GROUNDWATER POTENTIAL OF PART OF RAFIN-YASHI, MINNA, NORTH CENTRAL, NIGERIA
  
     | Uti Ikitsombika Markus 1* | Udensi Emmanuel Emeka 1 | Mufutau Owolabi Jimoh 2 | and | Mannir Muhammad 1 | Am. J. innov. res. appl. sci. 2018; 6(1):58-66.

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| Received | 07 January 2018 |          | Accepted | 01 February 2018 |         | Published 7 February 2018 |