Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria

Digital edge detector operations using magnetic derivatives in conjunction with spectra depth analysis were performed on high-resolution aeromagnetic signals to enhance the delineation and interpretation of depth, structural, and intrasedimentary features within the Middle Benue Trough (MBT) of Nort...

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Autores principales:	Eko Gerald Ejiga, Noer El Hidayah Ismail, Ismail Yusoff
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	magnetic derivative spectral depth analysis Middle Benue Trough intrusive hydrothermal minerals edge detector Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/c5fb3ccee6f0409389ee362ec49f67fc
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id	oai:doaj.org-article:c5fb3ccee6f0409389ee362ec49f67fc
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spelling	oai:doaj.org-article:c5fb3ccee6f0409389ee362ec49f67fc2021-11-25T18:26:35ZImplementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria10.3390/min111112472075-163Xhttps://doaj.org/article/c5fb3ccee6f0409389ee362ec49f67fc2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1247https://doaj.org/toc/2075-163XDigital edge detector operations using magnetic derivatives in conjunction with spectra depth analysis were performed on high-resolution aeromagnetic signals to enhance the delineation and interpretation of depth, structural, and intrasedimentary features within the Middle Benue Trough (MBT) of North Central Nigeria, which could serve as a guide for mineral exploration. The derivatives revealed high-amplitude and short-wavelength anomalies over areas underlain by crystalline basement complexes, major volcanic zones, and aggregates of intrasedimentary volcanic and plutonic rocks. Geologic lineaments trending predominantly NE–SW and NW–SE, as well as minor trends of E–W and N–S, suggest that the area has undergone differential stress regimes across geologic time. The spectral depth analysis indicates a two-source depth model. The deep depth ranges from 1.9 to 6.1 km with an average of 3.9 km, whereas the shallow depth ranges between 0.3 and 1.9 km with an average of 0.8 km and is found to emanate from magnetic signals of post-Cretaceous near-surface igneous intrusions as well as other magnetized bodies embedded within the sediments. The spatial distribution of various hydrothermal minerals such as lead–zinc–barite deposits, as well as salt mineralization, is associated with the widespread Tertiary–recent magmatism and governed by pre-existing tectonic structures in the region.Eko Gerald EjigaNoer El Hidayah IsmailIsmail YusoffMDPI AGarticlemagnetic derivativespectral depth analysisMiddle Benue Troughintrusivehydrothermal mineralsedge detectorMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1247, p 1247 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic derivative spectral depth analysis Middle Benue Trough intrusive hydrothermal minerals edge detector Mineralogy QE351-399.2
spellingShingle	magnetic derivative spectral depth analysis Middle Benue Trough intrusive hydrothermal minerals edge detector Mineralogy QE351-399.2 Eko Gerald Ejiga Noer El Hidayah Ismail Ismail Yusoff Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
description	Digital edge detector operations using magnetic derivatives in conjunction with spectra depth analysis were performed on high-resolution aeromagnetic signals to enhance the delineation and interpretation of depth, structural, and intrasedimentary features within the Middle Benue Trough (MBT) of North Central Nigeria, which could serve as a guide for mineral exploration. The derivatives revealed high-amplitude and short-wavelength anomalies over areas underlain by crystalline basement complexes, major volcanic zones, and aggregates of intrasedimentary volcanic and plutonic rocks. Geologic lineaments trending predominantly NE–SW and NW–SE, as well as minor trends of E–W and N–S, suggest that the area has undergone differential stress regimes across geologic time. The spectral depth analysis indicates a two-source depth model. The deep depth ranges from 1.9 to 6.1 km with an average of 3.9 km, whereas the shallow depth ranges between 0.3 and 1.9 km with an average of 0.8 km and is found to emanate from magnetic signals of post-Cretaceous near-surface igneous intrusions as well as other magnetized bodies embedded within the sediments. The spatial distribution of various hydrothermal minerals such as lead–zinc–barite deposits, as well as salt mineralization, is associated with the widespread Tertiary–recent magmatism and governed by pre-existing tectonic structures in the region.
format	article
author	Eko Gerald Ejiga Noer El Hidayah Ismail Ismail Yusoff
author_facet	Eko Gerald Ejiga Noer El Hidayah Ismail Ismail Yusoff
author_sort	Eko Gerald Ejiga
title	Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
title_short	Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
title_full	Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
title_fullStr	Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
title_full_unstemmed	Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria
title_sort	implementing digital edge enhancers on improved high-resolution aeromagnetic signals for structural-depth analysis around the middle benue trough, nigeria
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c5fb3ccee6f0409389ee362ec49f67fc
work_keys_str_mv	AT ekogeraldejiga implementingdigitaledgeenhancersonimprovedhighresolutionaeromagneticsignalsforstructuraldepthanalysisaroundthemiddlebenuetroughnigeria AT noerelhidayahismail implementingdigitaledgeenhancersonimprovedhighresolutionaeromagneticsignalsforstructuraldepthanalysisaroundthemiddlebenuetroughnigeria AT ismailyusoff implementingdigitaledgeenhancersonimprovedhighresolutionaeromagneticsignalsforstructuraldepthanalysisaroundthemiddlebenuetroughnigeria
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Implementing Digital Edge Enhancers on Improved High-Resolution Aeromagnetic Signals for Structural-Depth Analysis around the Middle Benue Trough, Nigeria

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