WERNER DECONVOLUTION AND INTERPRETATION OF AEROMAGNETIC DATA OVER PARTS OF THE UPPER BENUE TROUGH, NIGERIA
WERNER DECONVOLUTION AND INTERPRETATION OF AEROMAGNETIC DATA OVER PARTS OF THE UPPER BENUE TROUGH, NIGERIA
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Date
1990-05
Authors
LECKY, Yusuf
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Abstract
The Werner deconvolution method of interpretation using
aeromagnetic data along profiles has been used to carry
out a basement study of parts of the Upper Benue Trough
within latitudes 10°30'N to 11°30'N and longitudes
11°00'E to 12°00'E. Deconvolution was applied to profiles
Spaced about 2 Km apart which made correlation of
calculated depths from adjacent profiles possible. Depths
which were consistent for adjacent profiles through the
same anomalies were used in fitting magnetic basement
surfaces to magnetic profiles and in preparing a magnetic
basement contour map for the area.
The results show that the maximum thickness of the
sediments lies between 1.4 Km and 2.0 Km with the deepest
portion located between Wawa and Dukul, Some magnetic
lineaments were delineated in the qualitative
interpretation which match some of the lineaments
interpreted by Ajakaiye et al (1986). These have been
related to structural changes in the magnetic composition
of the basement rocks. It was also observed that the
basement topography cannot totally account for all the
magnetic intensity variation which is attributed to the
poor resolution of the produced basement map as well as
the heterogeneous magnetic character of the basement rocks.
Description
A thesis submitted to the Postgraduate School,
Ahmadu Bello University, Zaria in partial
fulfilment of the requirement for the award
of the degree of Master of Science in
Applied Geophysics.
Department of Physics
Faculty of Science
Ahmadu Bello University
Zaria
MAY, 1990
Keywords
WERNER,, DECONVOLUTION,, INTERPRETATION,, AEROMAGNETIC,, DATA OVER PARTS,, BENUE TROUGH,, NIGERIA.