Mapping of geological structures and sediment thickness from analysis of aeromagnetic data over the Obudu Basement Complex of Nigeria
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Na stiahnutie
Dátum
2024
Názov časopisu
ISSN časopisu
Názov zväzku
Vydavateľ
Oxford University Press
ISBN
ISSN
1742-2132
1742-2140
1742-2140
Abstrakt
In this study, geologic structures, as well as attendant orientations and sediment thickness, in the Nigerian Obudu Complex were delineated using the Centre for Exploration Targeting (CET), and depth determination methods such as source parameter imaging (SPI) and standard Euler deconvolution (SED). The CET, SPI, and SED procedures were applied on the total magnetic intensity data. Also, the enhanced TMI data using analytic signal, first-vertical derivative, total-horizontal derivative, and tilt-angle derivative filters were further subjected to CET operation, with the aim of mapping both subtle and prominent lineaments. In general, mapped geologic structures trends in the NE–SW, NNE–SSW, E–W, and N–S directions. Overall, the dominant geologic structural orientations of NE–SW and NNE–SSW reflect the regional strike orientation. The regional striking of the lineation, which is caused by the Pan-African orogeny and subsequent post-orogenic processes, has an impact on these orientations. The N–S and E–W structural deviations from the main NE–SW and NNE–SSW trends are initiated by the YGS of the post-orogenic events. Overall, these complex geologic structures are probable sites for metallogenic minerals.
Popis
In: Journal of Geophysics and Engineering. Oxford : Oxford University Press, 2024. ISSN 1742-2132. Vol. 21, no 2 (2024), pp. 413-425.
Kľúčové slová
geologické štruktúry, sedimenty, sediments
Výstup z projektu
King Saud University RSP2024R496
Citácia
Práva a licenčné podmienky
CC BY Creative Commons Attribution 4.0. International
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess