Integrated geophysical and geological study of critical structural relationships influencing the occurrence of thrust systems, mega folds and strike-slip faults in southern Nigeria shield

Abstract

The understanding of the structural complexity and development of the Ifewara- Zungeru strike slip fault with other associated tectonic  features, such as the Mega Oreke-Okegbo and Okemesi fold, the doubly plunging fold structures and the adjacent thrust belt is yet to be  appraised in any publication. These features extend over an area of more than 800 square km and the different aspects of such regional  intraplate strike-slip fault and associated structures are fully comprehended with Google Terrain Map and aeromagnetic data  interpretation. This study aims to elucidate the critical structural relationships and overprinting relationships influencing the occurrence  of the regional strike-slip faults, the folds and the thrust systems. The research provides detailed structural information about the mega  Oreke-Okegbo fold and the adjacent thrust duplexes. The former was simply referred to as a shear zone, while the thrust duplexes have  not been fully described in terms of nature and implication. The research proposes to produce illustrations and data compilations that  will contribute to our knowledge of these structures and the potentiality of the associated mineral resources in this area.