BASEMENT COMPLEX

This study presents an in-depth structural analysis of the Ugbobo area and its environs, situated within the Igarra Basement Complex in southwestern Nigeria. The primary objective of this research is to shed light on the geological events that have shaped this region, providing valuable insights into its deformational and geological history. To achieve this goal, Landsat imagery was utilized to systematically gather and examine fracture data through various analytical techniques. These techniques include rose plots, stereonets, and pole plots, which enabled the assessment of structural orientations and deformations in the study area. The results obtained from the rose plot analysis revealed a dominant NNE-SSW fracture trend, indicating deformation that can be attributed to the pre-Pan African orogeny. This finding suggests a polyphase deformational history, pointing to significant tectonic activity in the region. Furthermore, the analysis of pole plots showed clustering of poles in the western and eastern directions. The stereonet analysis revealed that the fracture lines are concentrated towards the eastern and western quadrants, indicating that many of these planes are dipping steeply in those directions. The comprehensive understanding of these structural patterns is crucial for reconstructing the deformational and geological history of the terrain. This study contributes significantly to the existing knowledge of the Igarra Basement Complex, providing new insights into the region's tectonic evolution. The findings of this research have important implications for future geological investigations and exploration activities in the area.