Depth Estimation and Source Location of Magnetic Anomalies from a Basement Complex Formation, Using Local Wavenumber Method

Source locations and depths to magnetic contacts were estimated from the total intensity magnetic field of an area of 3,025.25 square kilometres on geographical latitude N o ' 00 7 to N o ' 30 7 and longitude E o ' 00 3 to E o ' 30 3 within Abeokuta area, using local wavenumber method. This study was carried out using digitised airborne magnetic data of basement complex formation. Structural interpretation of the magnetic data was achieved through applying advanced processing techniques that provide automatic delineation and depth estimation of the magnetic structures. Local wavenumber method was used for locating and estimating depth to magnetic contact. The magnetic contact depth ranges from 0.145km to 2.692km.