GEOELECTRIC DRILLING OF PART OF ABAJI AND ENVIRONS ABAJI AREA COUNCIL FEDERAL CAPITAL TERRITORY ABUJA NORTHCENTRAL NIGERIA

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Geoelectrical-appraisal-of-Loko-Goma-and-environs-Part-of-Jemaa-Sheet-188SW-Kokona-Local-Government-Area-of-Nasarawa-State-Nigeria..pdf (802.31 KB)

Date

2013-06-15

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Department of Geology and Mining, Nasarawa State University Keffi

Abstract

Geoelectrical drilling was carried out in parts of Abaji Area Council, Federal Capital Territory of North-Central Nigeria, with the aim of establishing the groundwater potential of the area. Seventy-two (72) Vertical Electrical Sounding points established at various stations using Abem Terrameter SAS 300C/GPS12 Garmix with a maximum cable spread of AB/2=300m and MN/2=20m. The results obtained from the field data were interpreted using the IXID and IPI2WIN 2004 software for quantitative analysis, while the GIS software was used for the qualitative analysis. The study area shows four units of water system in some places at 30m, 60m, 90m and 120m. The apparent resistivities value ranges from as low as 56Ωm to as high as 3000Ωm. The study area revealed 5-7 lithologic sequences consisting of top soil, laterite, clay, siltstone, fine sand and sandstone of various thicknesses. The water bearing zones are within the fourth to sixth lithologic layers as a result of the moderate resistivity values obtained which ranges between 50Ωm to about 650Ωm. The clay units often reach thickness of 5 to 15m. This lithostratigraphy controls the occurrence, type and behavior of the aquifer units. The sand and clay intercalation constitute a system of aquifers separated by aquitards. The aquifer- aquitard units form multi-aquifer systems. The results correlate well with existing geology.

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Keywords

Geoeletric drilling. Lithostratigraphy, Lithology, aquitards and muti-aquifer system.

Citation

Adeleye, D.R. (1976).Geology of the Middle Niger Basin in Geology of Nigera edited by C.A.Kogbe).pp.283-287. Ayoade, J. O. and Oyebande B. L. (1976).A Geography of Nigerian Development Heinemann Educational Books (Nig); Ltd, Edited by J.S.Oguntoyinbo, O.O.Areola and M.Filani pp 71-87 [Geological map of Nigeria showing study area (NGSA, 2009). IX1D and IPI2WIN interpretation computer software package (2004). Jatau, B.S. and Ajodo, R.O.(2005) Reconnaissance hydrogeophysical investigation of parts of Kaduna Town and Environs, Kaduna State, Nigeria, Spetrum Journal Vol.11Nos.1&2, 2005 pp54-61.] Jatau, B.S. and Ajodo, R.O. (2007). The use of geoelectric data in the estimation of topographic relief: Case study of River Kaduna and its tributaries. Kaduna Nigeria, Spectrum Journal Jatau, B.S. and Bajeh, I. (2007). Hydrogeological appraisal of parts of Jemaa Local Government Area, North-Central Kaduna State, Nigeria. Medwell International Research Journal of Applied Sciences 2(11):1174-118, 2007. Keller, G. V. and Frischknecht, F.C. (1966). Electrical Methods in Geophysical Prospecting. Paragon Press, Oxford, pp.135-136. Murat, R.C.(1972). Stratigraphy and Paleogeography of the cretaceous and Lower tertiary in Southern in African Geology. Edited by Dessauvagie, T.F. pp 251-276. Olorunniwo, M. A. and Olorunfemi, M. O. (1987). Geophysical Investigation for Ground Water in Precambrian Terrains, Acase study from Ikare, South-Westhern Nigeria. Journal of African Earth Sciences Vol. 6. Pp. 787-796. Topographical map by Land and Survey Department FCDA, Abuja1992.

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https://keffi.nsuk.edu.ng/handle/20.500.14448/6107

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