Evaluation of Aeromagnetic Data of Ilesha Area of Oyo State Nigeria using Analytical Signal (ASM) and Local wavenumber (LWN)
No Thumbnail Available
Date
2017
Authors
Ozebo, V.C.
Ogunkoya, C.O.
Layade, G.O
Makinde, V.
Bisilimi, A.L
Journal Title
Journal ISSN
Volume Title
Publisher
Faculty of Science, University of Port Harcourt
Abstract
This paper presents the analysis and interpretation of an aeromagnetic data of Ilesha area, (Sheet
243) sourced from Nigeria Geological Survey Agency. The area is located between 7.5oN and 8.0oN of latitude and
longitude 4.5oE to 5.0oE. Two methods: Analytic Signal Method (ASM) and Local wavenumber (LWN) were used.
These methods were used to process and analyse the data so as to generate the depth to magnetic sources as well as the
source locations. The results obtained showed a shallower depth range limit for ASM between 0.348 km and 1.28 km,
which is less than the result of LWN within the range of 0.478 km-1.51 km. The results also revealed more source
locations in ASM result in comparison with LWN. The overall results of the methods have revealed the prospect of the
lithology of the area for magnetic mineral exploration in the field of applied geophysics. © JASEM
Description
Keywords
Aeromagnetic survey, Analytic signal, Magnetic Anomaly, Local wave number, lithology
Citation
V. C. Ozebo, C.O. Ogunkoya, G.O. Layade, V. Makinde, A.L. Bisilimi (2017), Evaluation of Aeromagnetic Data of Ilesha Area of Oyo State Nigeria using Analytical Signal (ASM) and Local wavenumber (LWN) J. Appl. Sci Environ Manage. 21(6): 1153-1156