Induced polarization (IP) imaging was conducted at Obadore in Ojo Local Government, Lagos
State, to evaluate the potential of the method when structural properties of the subsurface are
required. It addresses one of the potential near-surface applications of the IP method, namely
lithological characterization. The study shows that IP imaging is a promising tool for mapping
lithological contrasts in unconsolidated sediments and to clarify difficulties in lithological
interpretation observed in other geophysical methods. The profiles obtained in the study area
depicted two layers; the first layer with consistent and considerable high chargeability
signatures at depth of 20m indicates sand formation. The second layer predicted to be clay with
low IP effects was observed at various depths for all the profiles.