TWO-DIMENSIONAL GEOELECTRICAL RESISTIVITY IMAGING FOR SHALLOW SITE INVESTIGATION AT UNIBEN ENVIRONS IN OVIA NORTH-EAST LOCAL GOVERNMENT AREA OF EDO STATE, NIGERIA.

ABSTRACT

 A geo-electrical imaging  survey  was  conducted  at  UBTH  Golf  course  andits environs in Ovia North-East Local Government Area of Edo State, Nigeria for Shallow site investigation in order to determine the applicability of 2-D resistivity imaging in studying the sub surface, which in turn determines how feasible the area would be in terms of erection of structures that will stand the test of time. The area is underlain mainly with low resistivity materials with minor intrusion high resistivitymaterialslikegravel,limestonebasaltandslate.Geophysical surveywas carried out using 2-D electrical resistivity imaging technique. The Wenner Alpha configuration  was employed. Field data were obtained for ten electrical   imaging

lines, atUBTH Golf course in Ovia North-East Local Government Area, subjected to inversion, in order to remove geometrical  effects from the   pseudo-sectionandproduce an image of true depth and true formation resistivity. The    2-D electrical investigationinUBTHenvironsshowsthatthesoillithologyandcompartmentwill be a good site for big building and other construction works even for shallow site works.