Geophysical Investigation as an Aid to Understanding Complex Geological Terrain: A Case of Yikpata Transition Zone in Share, North-Central Nigeria

A geophysical method of investigation has been deployed in order to give a quick overview the nature and rapidly changing subsurface lithologies that characterized Yikpata, Share, Kwara State, Nigeria. total nine (9) vertical electrical soundings (VES), using Schlumberger Array uniformly divided into three groups: basement, basement/sedimentary boundary sedimentary terrain, horizontal profiling (HP) Wenner were for this study. The study revealed variation resistivity, thus depicting changes lithology/rock types along basement-sedimentary contact zone. interpretation Basement Complex terrain consists 3-4 geoelectric layers: topsoil, weathered, weathered/fractured basement fractured basement. Depths beyond ≥ 12 m where occurs can be target groundwater exploration structurally controlled mineralization. resistivity values around Basement/Sedimentary unconformity zone shows about 3 – 4 layers. show remarkable characteristics terrains also reflect geology area. In layers delineated: Top soil, clayey sand, sandy clay clay. Geoelectric sections reveal lithology laterally vertically. shown an aid understand complex geologic environments with geology. Also, knowledge area is very important make sensible interpretation. Keywords: complex; Electrical Geoelectric; Vertical sounding.