Subsurface Structural Analysis Using High Resolution Aeromagnetic Data In Guyuk-Shani And Environs: A Geophysical Approach To Hydrocarbon Prospectivity

Abstract

The Investigation of depth to Magnetic Sources and Basement Topography in Guyuk-Shani and Adjoining Areas, Northeastern Nigeria, was carried out using High-Resolution Aeromagnetic (HRAM) data over the area to determine depth to Magnetic Sources, Basement Topography (BT), and its implications for Hydrocarbon potentials (HP). The Analysis of the High Resolution Aeromagnetic (HRAM) data was achieved through Source Parameter Imaging (SPI) and Modeling of Profiles to determine Sediment thickness and Basement Topography using Oasis montaj. The results of the findings revealed that, the Total Magnetic Intensity Map of the area has Magnetic susceptibilities varying from 9.2 to 253.9nT, and SPI depth to Magnetic Sources varying from 0.0703 to 15.5012km. The Basement Topography is the undulating type with Sub-Basins typical of Horst and Graben. The Modeled Profiles 1, 2 and 3 have deeper (D1) and Shallow (D2) Magnetic Source Depth varying from 8 to 12km, 5 to 15km and 8 to 12km, 1 to 3km, 0.8 to 1km and 0.1 to 0.25km respectively.  The findings revealed that the area has potential for Hydrocarbon exploration, especially the Sub-Basins with sediment thicknesses of 2 to 15km and above.