RMZ – MATERIALI IN GEOOKOLJE

386 Sunmonu, L. A., Adagunodo, T. A., Olafisoye, E. R., Oladejo, O. P.ConclusionThough the study area was assignedas an industrial estate, as long as waterstill remains one of our essentialamenities in life, the groundwater potentialevaluation in the industrial estateOgbomoso cannot be overlooked.Ignorantly without carrying out geophysicalsurvey, the building contractormight have decided to build on thepromising areas for groundwater explorationwhich will lead to scarcityof groundwater in the study area. Also,building of factories on promising areasfor groundwater exploration is evendisastrous to the users in the future.The study has been able to highlight theimportance of resistivity method in effectivehydrogeologic characterization andgroundwater exploration. This study hasproved to be quite successful for mappingoutrock types, structural formationsand fractures which would not have beenobserved at the surface. The presence ofweathered layer and fractured basementare key components of aquifer systemand zone of groundwater accumulationin industrial estate, Ogbomoso. A multidimensionalapproach to this study (thatis modeled curves and the maps presentedfor groundwater potential evaluation)has made the study both very qualitativeand quantitative as information missedby any of the methods is revealed by theother and thereby necessitating justifiableconclusions.It can be concluded that the low resistivityand significantly thick weatheredrock/clay and the fractured basementconstitute the aquifer in this area. Resultsfrom this study have revealed thatthe Southern and Eastern parts of thestudy area are the most promising regionfor borehole development. However,Northeastern region of the studyarea can also be considered as fair forborehole development as it has beenshown from Figure 10.It is recommended that detailed workbe done in this industrial estate usingother relevant geophysical methods soas to confirm the fractures predictedand to elucidate the patterns of thefractures.AcknowledgementsThe corresponding author is grateful toMr. E. O. and Mrs. C. J. Adagunodo,Miss T. O. Ayinla, Prof. Bayo Ajulo,and Mrs V. A. Ajulo (nee Adagunodo)for the financial support in the courseof carrying out this research.ReferencesAcworth, R. I. (1987): The developmentof crystalline basement aquifers in atropical environment. Quarterly Journalof Engineering Geology, Vol. 20,265–272.RMZ-M&G 2012, 59