Vertical electrical sounding, well inventory and physicochemical analysis were conducted to evaluate soil corrosivity and aquifer protective capacity of overburden units in the basement complex terrain of Ado-Ekiti, southwestern Nigeria. The topsoil is composed of slightly corrosive materials at the eastern, southern and northeastern flanks and the central portion with resistivity values ranging from 60 to 180 Ωm. Moderately corrosive/slightly corrosive materials (with resistivity values of 10 < ρ < 60 Ωm) constitute the second layer around the eastern, southern and north-eastern flanks. Pockets of areas in the northwestern, southeastern, eastern and central parts of the metropolis are practically non-corrosive with resistivity values in excess of 200 Ωm. Zones of good, moderate, weak and poor overburden protective capacity were delineated, with longitudinal conductance (S) values of 0.7 < S < 4.9, 0.2 < S < 0.69, 0.1 < S < 0.19 and S < 0.1 mhos, respectively. On a regional consideration, 23.31%, 18.80% and 57.9% of the study area is characterised by overburden materials of poor, weak and moderate protective capacity, respectively. Only 6.02% of the area indicates good overburden protective capacity.
If the inline PDF is not rendering correctly, you can download the PDF file here.
 Akintorinwa O.J Abiola O. (2011): Sub-soil evaluation for pre-foundation study using geophysical and geotechnical approach. Journal of Emerging Trends in Engineering and Applied Sciences 2(5) pp. 858–863.
 Saupi S.R.A. Sulaiman M.A Masri M.N. (2015): Effects of Soil Properties to Corrosion of Underground Pipelines: A Review. Journal of Tropical Resources and Sustainable Science 3 pp. 14–18.
 Roberge P.R. (2008): Corrosion Electrochemistry. In Corrosion Engineering: Principles and Practice Roberge P.R. (ed.) McGraw-Hill Education pp. 35–47.
 Adesida A. Faleye E.T Fatoba J. (2002): Electrical Resistivity Survey for Corrosive Soils at WAPCO Ewekoro Factory Ogun State Nigeria. Journal of Science and Technology Research 1(1) pp. 22–32.
 Gopal M. (2010): Corrosion Potential Assessment The Geology of part of South-western Nigeria. Geological Survey of Nigeria pp. 31–87.
 Braga A.C.O. Filhow W.M Dourado J.C. (2006): Resistivity (DC) Method Applied To Aquifer Protection Studies. Brazilian Journal of Geophysics 24(4) pp. 573–581.
 Oladapo M.I. Mohammed M.Z. Adeoye O.O. Adetola B.A. (2004): Geoelectrical Investigation of the Ondo State Housing Corporation Estate Ijapo Akure South-western Nigeria. Journal of Mining and Geology 40(1) pp. 41–48.
 Ehirim C.N. Nwankwo C.N. (2010): Evaluation of aquifer characteristics and groundwater quality using geoelectric method in Choba Port Harcourt. Archives of Applied Science Research 2(2) pp. 396–403.
 Tsepav M.T. Adamu Y. Umar M. A. (2015): Evaluation of Aquifer Protective Capacity and Soil Corrosivity Using Geoelectrical Method. International Scholarly and Scientific Research & Innovation 9(11) pp. 662–671.
 Mallam A Emenike E.A. (2008): Preliminary Findings of Subsurface Characteristics From Direct Current Resistivity Survey of The Federal Capital Territory (FCT) Nigeria. International Journal of Pure and Applied Sciences 2(2) pp. 68–76.
 Ojo E.O. Adelowo A. Abdulkarim H.M and Dauda A.K. (2015): A Probe into the Corrosivity Level and Aquifer Protective Capacity of the Main Campus of the University of Abuja Nigeria: Using Resistivity Method Physics Journal 1(2) pp. 172–178.
 Olajuyigbe A.E. (2010): Sustainable Water Service Delivery: An Assessment of a Water Agency in a Rapidly Urbanizing City in Nigeria. Journal of Sustainable Development 3(4) pp. 210–219.
 Rahaman M. A. (1988): Recent advances in the study of the Basement Complex of Nigeria. In Oluyide et.al. (eds.) Precambrian Geology of Nigeria. Geological Survey of Nigeria: Kaduna pp. 157–163.
 Kleiner Y. Rajani B Krys D. (2010): Impact of Soil Properties on Pipe Corrosion: Re-examination of Traditional Conventions. Water Distribution System Analysis–WDSA 2010 Tucson AZ USA pp. 12–15.
 Elarabi H Elkhawad T. (2014): Evaluation of Subsoil Corrosivity Condition around Baracaia Area using the Electrical Resistivity Method A Case Study from the Muglad Basin Southwestern Sudan. Journal of Earth Science and Engineering 4 pp. 663–667.
 Tijani M.N Oke S.A Olowookere A.T. (2014): Hydrogeochemical characterization of a shallow ground-water system in the weathered basement aquifer of Ilesha area southwestern Nigeria. Evolving Water Resources Systems 364 475–489.
 Vander Velpen B.P.A. (1988): Resist Version 1.0. M.Sc. Research Project. ITC: Delft Netherlands.
 Jayeoba A. Oladunjoye M.A. (2013): Hydro-geophysical evaluation of groundwater potential in hard rock terrain of southwestern Nigeria RMZ – Materials & Geoenvironment 60 pp. 271–285.
 Teikeu W.A. Ndougsa-Mbarga T. Njandjock P.N Tabod T.C. (2012): Geoelectric Investigation for Groundwater Exploration in Yaoundé Area Cameroon. International Journal of Geosciences 3 pp. 640–649.
 Adeniji A.E. Omonona O.V Obiora D.N Chukudebelu J.U. (2014): Evaluation of soil corrosivity and aquifer protective capacity using geo-electrical investigation in Bwari basement area; Abuja. Journal of Earth System Science 123(3) pp. 491–502.
 Ojo J.S. Olorunfemi M.O Akinluyi F.O. Bayode S Akintorinwa O.J Omosuyi G.O. (2015): Evaluating Soil Erosion Risk in the Basement Complex Terrain of Akure Metropolis Southwestern Nigeria. Journal of Geography and Geology 7(1) pp. 56–64.
 Agunloye O. (1984): Soil aggressivity along steel pipeline route at Ajaokuta southwestern Nigeria. Journal of Mining and Geology 21 pp. 97–101.
 Oki O. A. Egai A.O Akana T.S. (2016): Soil Corrosivity Assessment in the Pre-Design of Sub-Surface Water Pipe Distributary Network in Yenagoa South-South Nigeria Using Electrical Resistivity. Geosciences 6(1) pp. 13–20.
 Obiora D.N Ajala A.E Ibuot J.C. (2015): Evaluation of aquifer protective capacity of overburden unit and soil corrosivity in Makurdi Benue state Nigeria using electrical resistivity method. Journal of Earth System Science 124(1) pp. 125–135.