THE USE OF 2D RESISTIVITY METHOD FOR MINERAL EXPLORATION IN UGBOGIOBO, OVIA NORTH EAST, EDO STATE, NIGERIA.

ABSTRACT

This study investigated limestone occurrence using Electrical Resistivity method. The results obtained in this study provided information on the geological structure of the study area. A horizontal distance of 200 m was covered with a depth of 39.6 m, having a resistivity values ranging from 1711 Ωm – 41151 Ωm and three (3) major resistivity structures were delineated across profile 11. The topsoil in profile 11 is humus in nature followed by clayey soil as we go down the depth above 10 m, the profile is characterize by Sedimentary/metamorphic Rocks like limestone between the resistivity range of 2000 Ωm – 3000 Ωm, followed by sandstone at resistivity ranges between 3622 Ωm – 5000 Ωm and above 6000 Ωm at a depth of 30 m to the last depth of investigation are more of igneous rocks. Four (4) major resistivity structures were delineated in profile 12 which form the lithological mineral composition of the profile. The topsoil is humus in nature followed by clayey soil as we go down the depth above 18 m, the profile is characterize by Sedimentary Rocks like limestone between the resistivity range of 2000 Ωm – 3000 Ωm, followed by sandstone at resistivity ranges between 3622 Ωm – 5000 Ωm and above 5000 Ωm at a depth of 30 m to the last depth of investigation are more of igneous rocks.