IJTEEE
International Journal of Technology Enhancements and Emerging Engineering Research (ISSN 2347-4289)
PREVIOUS PUBLICATIONS



IJTEEE >> Volume 2 - Issue 11, December 2014 Edition



International Journal of Technology Enhancements and Emerging Engineering Research  
International Journal of Technology Enhancements and Emerging Engineering Research

Website: http://www.ijteee.org

ISSN 2347-4289



Groundwater Targeting Within The Basement Complex Rocks Of Federal Capital Territory Abuja Using Remotely Sensed And Vertical Electrical Sounding Data

[Full Text]

 

AUTHOR(S)

Y. S. Agunleti, E.A. Arikawe

 

KEYWORDS

KEY WORDS: Layer, VES, Weathered basement, Tectonic, Remote Sensing

 

ABSTRACT

ABSTRACT: Federal Capital Territory, Abuja largely falls within the North-Central Basement Complex of Nigeria, which is underlain by crystalline basement rocks. Groundwater resources in the crystalline basement complex are restricted to features produce by weathering and tectonic processes and therefore the reason to locate fracture/weathered zone to ensure maximum and sustainable yield. This study was carried out to illustrate the application of vertical electrical sounding (VES) and remote sensing techniques for efficient groundwater resources. The advent of computer software and associated numerical modeling aided such approach for groundwater exploration more especially in a regional scale. The modeling of the VES measurements carried out at Nineteen (19) stations has been used to derive the sub-surface geo-electric sections for the various profiles. Geologic sequence in the study area is composed of three to six sub-surface layers. The first layer is the top soil with resistivity ranging from 32.32- 73.1 ohm-m and a thickness range from 0.6m – 1.96m, Second layer is a lateritic layer ranging from 112.6 to 190.8 ohm-m with a thickness range of 0.65 to 1.96m, weathered basement ranging from 68.26 to 796.4 ohm-m with thickness range of 2.96 to 5.44m as the third layer. The fourth layer with resistivity value range between 50.2 to 205.6 ohm-m and thickness range of 4.23 to 43.95m is noted as the weathered/fractured basement (water bearing). The layer is extensive and thickest at VES station 5and 6, thus serve as a good reservoir for groundwater exploration. The fifth layer is presumably fresh basement whose resistivity values vary from 1049Ωm to 49334Ωm with an infinite depth.

 

REFERENCES

[1] BALA, A. E and IKE, E.C. (2001) The aquifer of the crystalline basement rocks In Gusau area, Northwestern Nigeria. J. Min. Geol. 37(2): 177-184.

[2] BLANCHET, P.H. (1957) Development of fracture analysis as an exploration method. American Association of Petroleum Geology Bulletin, 40:1748-1759.

[3] DOBRIN, M.B. and SAVIT, C.H. (1988) Introduction to Geophysical Prospecting. Fourth Edition, McGraw- Hill Books: New York, NY.

[4] GUSTAFSON, P. (1993) Satellite data and GIS as a tool in groundwater exploration in a semiarid area Licentiate thesis, Dept thesis, Dept. of Geology Chalmers Univ. of Technology, Publ. A 74

[5] KOCH, M. and MATHER, P.M. (1997) Lineament mapping for groundwater resource assessment: a comparison of digital Synthetic Aperture Radar (SAR) imagery and stereoscopic Large Format Camera (LFC) photographs in the Red Sea Hills, Sudan. International Journal of Remote Sensing, 27, pp. 4471-4493.

[6] MORELLI, M. and PIANA, F. (2006) Comparison between remote sensed lineaments and geological structures in intensively cultivated hills (Monferrato and Langhe domains, NW Italy), Int. J. Remote Sens., 27, 4471–4493,

[7] OYAWOYE, P. O. (1964) “Geology of Nigerian Basement Complex”. Journal of Mining and Geology, Vol.1, P. 110-121

[8] LEARY, D.W., FRIEDMAN, J.D. and POHN, H.A. (1976) " Lineament, linear, lineation: Some proposed new standards for old terms” Geological Society America Bulletin, Vol.87, 1463-1469

[9] SYED, A.A. and SAIED, P. (2004) Geological applications of Landsat Enhanced Thematic Mapper (ETM) data and Geographic Information System (GIS): mapping and structural interpretation in south-west Iran, Zagros Structural Belt. International Journal of Remote Sensing, 25, pp. 4715-4727

[10] WARD, S. H. (1990) Resistivity and induced polarization methods: in Geotechnical and Environmental Geophysics, Vol. 1, Ward, S. H., ed: Society of Exploration Geophysicists.