Abstract
A magnetic survey of Ibadan area in the South-Western part of Nigeria was performed as part of the largest airborne geophysical survey blocks flown between 2003 and 2010 by the Nigeria Geological Survey Agency. Two magnetic data enhancement procedures were employed to determine their effectiveness in characterizing the study area. The upward continuation together with reduction to Pole technique significantly improve the interpretation of magnetic data in terms of discriminating between shallow and deep magnetic sources within the study area.
Highlights
The magnetic method is frequently used to search for buried magnetic materials (Walsh, 1989)
A magnetic survey of Ibadan area in the South-Western part of Nigeria was performed as part of the largest airborne geophysical survey blocks flown between 2003 and 2010 by the Nigeria Geological Survey Agency
The location of shallow magnetic materials such as buried container, pipes, metals debris are enhanced with magnetic data processing together with enhancement procedures which substantially improve the interpretations of the magnetic data
Summary
The magnetic method is frequently used to search for buried magnetic materials (Walsh, 1989). Another common application is in the determination of the probable depth to basement beneath sedimentary rocks (Birch, 1984). The residual magnetic anomaly is modeled by computer methods to determine the depth, geometry and magnetic susceptibility of the source of the anomaly. These models provide a basis of a geological interpretation of the subsurface
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