CLASSIFICATION OF THE BASEMENT COMPLEX USING AEROMAGNETIC AND REMOTE SENSING DATA ANALYSES: CASE STUDY OF EKITI STATE, SOUTH-WEST NIGERIA

Ojo Olufemi Felix (), Osazuwa Babatunde Isaac, Collins C. Chiemeke, Osumeje Oroja Joseph, Oyedele Akinola Akintunde, Adagunodo Theophilus Aanuoluwa, Oyeyemi Kehinde David and Ejiga Eko Gerald
Additional contact information
Ojo Olufemi Felix: Department of Geology, Ekiti State University, Ado‑Ekiti, Nigeria
Osazuwa Babatunde Isaac: Department of Geophysics, Federal University Oye-Ekiti, Oye‑Ekiti, Nigeria
Collins C. Chiemeke: Department of Physics, Federal University Otuoke, Bayelsa State, Nigeria
Osumeje Oroja Joseph: Department of Physics, Ahmadu Bello University, Zaria
Oyedele Akinola Akintunde: Department of Physics, Ekiti State University, Ado‑Ekiti, Nigeria
Adagunodo Theophilus Aanuoluwa: Department of Physics, Covenant University, Ota, Ogun State, Nigeria
Oyeyemi Kehinde David: Department of Physics, Covenant University, Ota, Ogun State, Nigeria
Ejiga Eko Gerald: Department of Physics, Covenant University, Ota, Ogun State, Nigeria

Earth Sciences Malaysia (ESMY), 2024, vol. 8, issue 2, 158-162

Abstract: This study investigates the basement rocks in Ekiti State for the purpose of geophysical classification so as to delineate prospective area of mineralization within the State. Aeromagnetic data and satellite imagery covering the entire state were analysed using appropriate software. Reduction to equator geophysical transformation was first carried out on the residual magnetic intensity data before the application of Fast Fourier Transform filters to generate some derivative maps such as the analytic signal and tilt derivative maps which amplified lineament and enhanced both weak and strong magnetic anomalies. The Shuttle Radar Topography Mission (SRTM) data were processed to produce lineament density map, which was analysed for various linear and curvilinear features. The study area was classified into magnetic-high anomalous zone (HMA), magnetic-intermediate anomalous zone (IMA) and magnetic-low anomalous zone (LMA) based on the analytical signal analysis. Analysis of the structures showed the dominance of northeast-southwest and northwest-southeast trends. Evaluation of Lineament density showed high value of 0.5203 km-2 around the centre and the western part of the study area, which are also HMA and IMA zones, an indication of concentration of more faults, joints and line of weaknesses which may serve as favourable tracts for mineralisation in the study area.

Keywords: Aero-magnetic data; total magnetic intensity; Magnetic anomalous zone; lineament density. (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://earthsciencesmalaysia.com/archives/ESMY/2esmy2024/2esmy2024-158-162.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:zib:zbesmy:v:8:y:2024:i:2:p:158-162

DOI: 10.26480/esmy.02.2024.158.162

Access Statistics for this article

Earth Sciences Malaysia (ESMY) is currently edited by Dr. Mohd Nadzri Md Reba

More articles in Earth Sciences Malaysia (ESMY) from Zibeline International Publishing
Bibliographic data for series maintained by Zibeline International Publishing ( this e-mail address is bad, please contact ).