High resolution seismic imaging of the near-surface : comparison of energy sources
Thesis (M.Sc.)--Memorial University of Newfoundland, 2000. Environmental Science Bibliography: leaves 114-119 The shallow seismic reflection method plays an important role in helping to understand engineering, mining and environmental problems. For high resolution at shallow depth, choosing a seismi...
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ftmemorialunivdc:oai:collections.mun.ca:theses3/54764 2023-05-15T17:23:32+02:00 High resolution seismic imaging of the near-surface : comparison of energy sources Xiang, Jianguang, 1963- Memorial University of Newfoundland.Environmental Science Programme 2000 viii, 124 leaves : ill., map Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses3/id/54764 eng eng Electronic Theses and Dissertations (15.41 MB) -- http://collections.mun.ca/PDFs/theses/Xiang_Jianguang.pdf a1493240 http://collections.mun.ca/cdm/ref/collection/theses3/id/54764 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Seismic reflection method Imaging systems in seismology Text Electronic thesis or dissertation 2000 ftmemorialunivdc 2015-08-06T19:17:59Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2000. Environmental Science Bibliography: leaves 114-119 The shallow seismic reflection method plays an important role in helping to understand engineering, mining and environmental problems. For high resolution at shallow depth, choosing a seismic source to best meet the goals of the survey can be the most pivotal decision. This research is to study the characteristics of various portable and environmentally friendly seismic sources by comparing them to the source character of a shotgun source. The sources include two SIST (Swept Impact Seismic Technique) vibrators and a hammer. Data were collected in 1999 near St. John's, Newfoundland. They were compared with shotgun source in terms of radiated frequency spectrum and energy levels in an attempt to improve the resolving power. -- Compared to the shotgun data, the SIST vibrators provide lower frequency range but higher frequency bandwidth. Their weaker energy limits the effective penetration depth for imaging to 150 m. However, the SIST vibrator yields a higher resolution in stacked section than the shotgun. Based on its overall performance, the SIST vibrator shows a great deal of potential to be a viable, environmentally friendly seismic source with high resolution capability. This is especially suitable for environmental surveys, in which depths are usually not more than 200 m. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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English |
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Seismic reflection method Imaging systems in seismology |
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Seismic reflection method Imaging systems in seismology Xiang, Jianguang, 1963- High resolution seismic imaging of the near-surface : comparison of energy sources |
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Seismic reflection method Imaging systems in seismology |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2000. Environmental Science Bibliography: leaves 114-119 The shallow seismic reflection method plays an important role in helping to understand engineering, mining and environmental problems. For high resolution at shallow depth, choosing a seismic source to best meet the goals of the survey can be the most pivotal decision. This research is to study the characteristics of various portable and environmentally friendly seismic sources by comparing them to the source character of a shotgun source. The sources include two SIST (Swept Impact Seismic Technique) vibrators and a hammer. Data were collected in 1999 near St. John's, Newfoundland. They were compared with shotgun source in terms of radiated frequency spectrum and energy levels in an attempt to improve the resolving power. -- Compared to the shotgun data, the SIST vibrators provide lower frequency range but higher frequency bandwidth. Their weaker energy limits the effective penetration depth for imaging to 150 m. However, the SIST vibrator yields a higher resolution in stacked section than the shotgun. Based on its overall performance, the SIST vibrator shows a great deal of potential to be a viable, environmentally friendly seismic source with high resolution capability. This is especially suitable for environmental surveys, in which depths are usually not more than 200 m. |
author2 |
Memorial University of Newfoundland.Environmental Science Programme |
format |
Thesis |
author |
Xiang, Jianguang, 1963- |
author_facet |
Xiang, Jianguang, 1963- |
author_sort |
Xiang, Jianguang, 1963- |
title |
High resolution seismic imaging of the near-surface : comparison of energy sources |
title_short |
High resolution seismic imaging of the near-surface : comparison of energy sources |
title_full |
High resolution seismic imaging of the near-surface : comparison of energy sources |
title_fullStr |
High resolution seismic imaging of the near-surface : comparison of energy sources |
title_full_unstemmed |
High resolution seismic imaging of the near-surface : comparison of energy sources |
title_sort |
high resolution seismic imaging of the near-surface : comparison of energy sources |
publishDate |
2000 |
url |
http://collections.mun.ca/cdm/ref/collection/theses3/id/54764 |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (15.41 MB) -- http://collections.mun.ca/PDFs/theses/Xiang_Jianguang.pdf a1493240 http://collections.mun.ca/cdm/ref/collection/theses3/id/54764 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
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