Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data
A survey of nearshore areas in the Vestfold Hills, Antarctica, using high-resolution multibeam swath bathymetry provided both a detailed digital bathymetric model and information on sediment acoustic backscatter. Combined with underwater video transects and sediment sampling, these data were used to...
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Online Access: | https://researchers.mq.edu.au/en/publications/e9f6ea56-2f60-4200-8507-56ba6947efe8 https://doi.org/10.1017/S0954102015000371 http://www.scopus.com/inward/record.url?scp=84945447819&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/e9f6ea56-2f60-4200-8507-56ba6947efe8 2024-05-19T07:28:54+00:00 Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data O'Brien, Philip E. Smith, Jodie Stark, Jonathan S. Johnstone, Glenn Riddle, Martin Franklin, Dennis 2015-12 https://researchers.mq.edu.au/en/publications/e9f6ea56-2f60-4200-8507-56ba6947efe8 https://doi.org/10.1017/S0954102015000371 http://www.scopus.com/inward/record.url?scp=84945447819&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess O'Brien , P E , Smith , J , Stark , J S , Johnstone , G , Riddle , M & Franklin , D 2015 , ' Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data ' , Antarctic Science , vol. 27 , no. 6 , pp. 566-586 . https://doi.org/10.1017/S0954102015000371 marine processes marine sediments sea bed geomorphology sea bed video swath bathymetry article 2015 ftmacquarieunicr https://doi.org/10.1017/S0954102015000371 2024-04-30T02:51:22Z A survey of nearshore areas in the Vestfold Hills, Antarctica, using high-resolution multibeam swath bathymetry provided both a detailed digital bathymetric model and information on sediment acoustic backscatter. Combined with underwater video transects and sediment sampling, these data were used to identify and map geomorphic units. Six geomorphic units identified in the survey region include: rocky outcrops, basins, pediments, valleys, scarps and embayments. In addition to geomorphic units, the data revealed sedimentary features that provide insights into post-glacial sediment transport and erosion in the area. Ice keel pits and scours are common, and sea floor channels, scour depressions and sand ribbons indicate transport and deposition by wind-driven currents and oceanographic circulation. Gullies and sediment lobes observed on steep slopes indicate mass movement of sediment. Some of these processes have not been directly observed to date, but their effectiveness in shaping the modern sea floor is clearly indicated by the sea floor mapping data. The embayments preserve a mantle of boulder sand probably deposited by cold-based glaciers which were flanked by faster-flowing ice in adjoining regions. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica East Antarctica Macquarie University Research Portal Antarctic Science 27 6 566 586 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
marine processes marine sediments sea bed geomorphology sea bed video swath bathymetry |
spellingShingle |
marine processes marine sediments sea bed geomorphology sea bed video swath bathymetry O'Brien, Philip E. Smith, Jodie Stark, Jonathan S. Johnstone, Glenn Riddle, Martin Franklin, Dennis Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
topic_facet |
marine processes marine sediments sea bed geomorphology sea bed video swath bathymetry |
description |
A survey of nearshore areas in the Vestfold Hills, Antarctica, using high-resolution multibeam swath bathymetry provided both a detailed digital bathymetric model and information on sediment acoustic backscatter. Combined with underwater video transects and sediment sampling, these data were used to identify and map geomorphic units. Six geomorphic units identified in the survey region include: rocky outcrops, basins, pediments, valleys, scarps and embayments. In addition to geomorphic units, the data revealed sedimentary features that provide insights into post-glacial sediment transport and erosion in the area. Ice keel pits and scours are common, and sea floor channels, scour depressions and sand ribbons indicate transport and deposition by wind-driven currents and oceanographic circulation. Gullies and sediment lobes observed on steep slopes indicate mass movement of sediment. Some of these processes have not been directly observed to date, but their effectiveness in shaping the modern sea floor is clearly indicated by the sea floor mapping data. The embayments preserve a mantle of boulder sand probably deposited by cold-based glaciers which were flanked by faster-flowing ice in adjoining regions. |
format |
Article in Journal/Newspaper |
author |
O'Brien, Philip E. Smith, Jodie Stark, Jonathan S. Johnstone, Glenn Riddle, Martin Franklin, Dennis |
author_facet |
O'Brien, Philip E. Smith, Jodie Stark, Jonathan S. Johnstone, Glenn Riddle, Martin Franklin, Dennis |
author_sort |
O'Brien, Philip E. |
title |
Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
title_short |
Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
title_full |
Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
title_fullStr |
Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
title_full_unstemmed |
Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data |
title_sort |
submarine geomorphology and sea floor processes along the coast of vestfold hills, east antarctica, from multibeam bathymetry and video data |
publishDate |
2015 |
url |
https://researchers.mq.edu.au/en/publications/e9f6ea56-2f60-4200-8507-56ba6947efe8 https://doi.org/10.1017/S0954102015000371 http://www.scopus.com/inward/record.url?scp=84945447819&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Science Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Science Antarctica East Antarctica |
op_source |
O'Brien , P E , Smith , J , Stark , J S , Johnstone , G , Riddle , M & Franklin , D 2015 , ' Submarine geomorphology and sea floor processes along the coast of Vestfold Hills, East Antarctica, from multibeam bathymetry and video data ' , Antarctic Science , vol. 27 , no. 6 , pp. 566-586 . https://doi.org/10.1017/S0954102015000371 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0954102015000371 |
container_title |
Antarctic Science |
container_volume |
27 |
container_issue |
6 |
container_start_page |
566 |
op_container_end_page |
586 |
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1799476433196679168 |