Application of Aeromagnetic Data and Pseudogravity Transforms in the Analysis of Structures and Mineralization Potential of Osi NE, Southwestern Nigeria

Abstract

The aeromagnetic data and pseudo-gravity transforms were used to analyze the structures and mineralization potential of Osi NE, in the Basement complex rocks of Southwestern Nigeria. The 3D Euler deconvolution was used highlight the trend characteristic of magnetic lineaments, isolate the zones where the 2 and 3D structures and their associated minerals occur in large proportions and to calculate the depth to magnetic and gravimetric basement. From the research it was deduced that; the lineament features from 3D Euler deconvolution and their mineralization which generally coincided with the river channels indicate a structural control of the drainage system and the associated mineralization in the study area, the rose plot of the extracted lineaments showed a predominance of NE-SW and NW-SE trends typical of Nigerian Basement which support Pan African as the major tectonic event while the 2 and 3D structures and their inferred mineralization show that the mineralized zones follow the geologic structures and make the study area .