Geoelectric Investigation Of Deghele Community In Warri South West L.G.A, Delta State, Nigeria

Abstract

A geoelectric investigation has been conducted at Deghele Community, Warri South West L.G.A, Delta State, Nigeria. The Vertical Electrical Sounding (VES) method was adopted with maximum current electrode separation (AB) of 600m. The interpretation revealed four to six geoelectric layers which include Topsoil, Silty sand, Clay and Sand. The topsoil has thickness varying from about 1.43 to 3.8m while its resistivity values vary from 2.23 to 131 m. The second and third geoelectric layers are composed of Silty sand/sand. This layer which is saline has resistivity values ranging from 2.23 to 78m and thickness varying from 7 to 20 m. The low resistivity values may be as a result of tides propagating saline sea water inland through the interconnecting creeks. The fourth geoelectric layer is composed of sand with resistivity values varying from 1121 to 2796 m. This layer forms the aquifer unit and has a maximum thickness of about 170m and at a depth of about 180m. The sixth layer terminated in a clay formation with resistivity values of about 65 m. This study has provided an insight to the subsurface disposition of the aquifer systems and delineated areas for groundwater development programme in Deghele community.