Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia

The characterization of near-surface soil-rock conditions is challenging in tropical crystalline terrains due to complex geology and lack of distinct stratigraphic markers. These features can adequately be mapped using velocity-resistivity relationships via statistically optimized soil-rock quality...

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Main Author:	Sunny, Akingboye Adedibu
Format:	Thesis
Language:	English
Published:	2023
Subjects:	QC1-999 Physics
Online Access:	http://eprints.usm.my/60231/1/AKINGBOYE%20ADEDIBU%20SUNNY%20-%20TESIS24.pdf
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id	my-usm-ep.60231
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spelling	my-usm-ep.602312024-03-20T01:15:24Z Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia 2023-08 Sunny, Akingboye Adedibu QC1-999 Physics The characterization of near-surface soil-rock conditions is challenging in tropical crystalline terrains due to complex geology and lack of distinct stratigraphic markers. These features can adequately be mapped using velocity-resistivity relationships via statistically optimized soil-rock quality modeling, especially in areas with overburden <50 m. The approach has not been used in tropical granitic terrains. To achieve the research goals, Penang Island, Malaysia; a tropical granitic terrain, was considered a suitable area due to its intrinsic soil-rock characteristics and the need to resolve environmental-related issues. This research, therefore, develops velocity-resistivity statistical relationships for granitic terrains based on complex collocated geotomographic (electrical resistivity tomography and seismic refraction tomography [SRT]) modeling. To this end, four detailed methodological scenarios were utilized, leveraging borehole logs, rock quality designation (RQD), soil penetration test (SPT N-values), and supervised regression analysis. The results show that the borehole lithologic logs correlate well with resistivity- and SRT-based lithological models at the eastern (Sungai Ara), southern (Batu Maung), and northern (Jelutong) sections of Penang Island. The areas are characterized by sandy silt topsoil, silty sand to sandy weathered units, weathered/fractured units, and integral/fresh granitic bedrock. The rock quality assessment, via borehole-based RQD, and SRT- and resistivity-based RQD models, had empirical prediction accuracies of 95.8% to 100%. 2023-08 Thesis http://eprints.usm.my/60231/ http://eprints.usm.my/60231/1/AKINGBOYE%20ADEDIBU%20SUNNY%20-%20TESIS24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Fizik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QC1-999 Physics
spellingShingle	QC1-999 Physics Sunny, Akingboye Adedibu Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
description	The characterization of near-surface soil-rock conditions is challenging in tropical crystalline terrains due to complex geology and lack of distinct stratigraphic markers. These features can adequately be mapped using velocity-resistivity relationships via statistically optimized soil-rock quality modeling, especially in areas with overburden <50 m. The approach has not been used in tropical granitic terrains. To achieve the research goals, Penang Island, Malaysia; a tropical granitic terrain, was considered a suitable area due to its intrinsic soil-rock characteristics and the need to resolve environmental-related issues. This research, therefore, develops velocity-resistivity statistical relationships for granitic terrains based on complex collocated geotomographic (electrical resistivity tomography and seismic refraction tomography [SRT]) modeling. To this end, four detailed methodological scenarios were utilized, leveraging borehole logs, rock quality designation (RQD), soil penetration test (SPT N-values), and supervised regression analysis. The results show that the borehole lithologic logs correlate well with resistivity- and SRT-based lithological models at the eastern (Sungai Ara), southern (Batu Maung), and northern (Jelutong) sections of Penang Island. The areas are characterized by sandy silt topsoil, silty sand to sandy weathered units, weathered/fractured units, and integral/fresh granitic bedrock. The rock quality assessment, via borehole-based RQD, and SRT- and resistivity-based RQD models, had empirical prediction accuracies of 95.8% to 100%.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Sunny, Akingboye Adedibu
author_facet	Sunny, Akingboye Adedibu
author_sort	Sunny, Akingboye Adedibu
title	Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
title_short	Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
title_full	Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
title_fullStr	Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
title_full_unstemmed	Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia
title_sort	development of novel geophysical–geotechnical relationships of granitic environments in penang island, malaysia
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Fizik
publishDate	2023
url	http://eprints.usm.my/60231/1/AKINGBOYE%20ADEDIBU%20SUNNY%20-%20TESIS24.pdf
_version_	1794024110651604992

Development Of Novel Geophysical–geotechnical Relationships Of Granitic Environments In Penang Island, Malaysia

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