Submarine Glacial Landforms on the Cold East Antarctic Margin
The East Antarctic continental margin, which extends from the Weddell Sea to the Ross Sea (Fig. 1h), surrounds the largest and oldest ice mass on Earth; however, it has only been studied at a few locations because of its remoteness and persistent sea ice. The shelf is 100–150 km wide over most of it...
Published in: | Geological Society, London, Memoirs |
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ftunisfloridatam:oai:digitalcommons.usf.edu:msc_facpub-1567 2023-05-15T13:34:05+02:00 Submarine Glacial Landforms on the Cold East Antarctic Margin O'Brien, P. E. Beaman, R. De Santis, Laura Domack, Eugene W. Escutia, C. Harris, P. T. Leventer, Amy McMullen, K. Post, A. Quilty, P. G. Shevenell, Amelia E. Batchelor, C. L. 2016-01-01T08:00:00Z https://digitalcommons.usf.edu/msc_facpub/593 https://doi.org/10.1144/M46.172 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/593 https://doi.org/10.1144/M46.172 Marine Science Faculty Publications Life Sciences book_chapter 2016 ftunisfloridatam https://doi.org/10.1144/M46.172 2021-10-09T07:49:52Z The East Antarctic continental margin, which extends from the Weddell Sea to the Ross Sea (Fig. 1h), surrounds the largest and oldest ice mass on Earth; however, it has only been studied at a few locations because of its remoteness and persistent sea ice. The shelf is 100–150 km wide over most of its length but broadens where major crustal structures intersect it, such as in Prydz Bay (Fig. 1a) where the shelf is 200–300 km wide. This paper reviews what is known presently about the geomorphology of the best-studied sectors of the East Antarctic margin: the deep re-entrant of Prydz Bay and the narrower shelves of George V and Mac.Robertson Land (Fig. 1h). Only a small proportion of the East Antarctica shelf has been surveyed with multibeam bathymetry, so this review is also dependent on compilations of single-beam bathymetry, seismic-reflection profiles and side-scan sonar data. In particular, we use George V Digital Elevation Model (GVDEM, Beaman et al. 2011) and International Bathymetric Chart of the Southern Ocean (IBCSO; Arndt et al. 2013). The slope has been more widely studied, with large amounts of seismic-reflection data available (e.g. Kuvaas & Leitchenkov 1992; Escutia et al. 2000; Solli et al. 2007; Close et al. 2007). Book Part Antarc* Antarctic Antarctica East Antarctica Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea Digital Commons University of South Florida (USF) Antarctic Southern Ocean Weddell Sea East Antarctica Ross Sea Prydz Bay Weddell Mac.Robertson Land ENVELOPE(65.000,65.000,-70.000,-70.000) Solli ENVELOPE(8.933,8.933,63.283,63.283) Geological Society, London, Memoirs 46 1 501 508 |
institution |
Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
Life Sciences |
spellingShingle |
Life Sciences O'Brien, P. E. Beaman, R. De Santis, Laura Domack, Eugene W. Escutia, C. Harris, P. T. Leventer, Amy McMullen, K. Post, A. Quilty, P. G. Shevenell, Amelia E. Batchelor, C. L. Submarine Glacial Landforms on the Cold East Antarctic Margin |
topic_facet |
Life Sciences |
description |
The East Antarctic continental margin, which extends from the Weddell Sea to the Ross Sea (Fig. 1h), surrounds the largest and oldest ice mass on Earth; however, it has only been studied at a few locations because of its remoteness and persistent sea ice. The shelf is 100–150 km wide over most of its length but broadens where major crustal structures intersect it, such as in Prydz Bay (Fig. 1a) where the shelf is 200–300 km wide. This paper reviews what is known presently about the geomorphology of the best-studied sectors of the East Antarctic margin: the deep re-entrant of Prydz Bay and the narrower shelves of George V and Mac.Robertson Land (Fig. 1h). Only a small proportion of the East Antarctica shelf has been surveyed with multibeam bathymetry, so this review is also dependent on compilations of single-beam bathymetry, seismic-reflection profiles and side-scan sonar data. In particular, we use George V Digital Elevation Model (GVDEM, Beaman et al. 2011) and International Bathymetric Chart of the Southern Ocean (IBCSO; Arndt et al. 2013). The slope has been more widely studied, with large amounts of seismic-reflection data available (e.g. Kuvaas & Leitchenkov 1992; Escutia et al. 2000; Solli et al. 2007; Close et al. 2007). |
format |
Book Part |
author |
O'Brien, P. E. Beaman, R. De Santis, Laura Domack, Eugene W. Escutia, C. Harris, P. T. Leventer, Amy McMullen, K. Post, A. Quilty, P. G. Shevenell, Amelia E. Batchelor, C. L. |
author_facet |
O'Brien, P. E. Beaman, R. De Santis, Laura Domack, Eugene W. Escutia, C. Harris, P. T. Leventer, Amy McMullen, K. Post, A. Quilty, P. G. Shevenell, Amelia E. Batchelor, C. L. |
author_sort |
O'Brien, P. E. |
title |
Submarine Glacial Landforms on the Cold East Antarctic Margin |
title_short |
Submarine Glacial Landforms on the Cold East Antarctic Margin |
title_full |
Submarine Glacial Landforms on the Cold East Antarctic Margin |
title_fullStr |
Submarine Glacial Landforms on the Cold East Antarctic Margin |
title_full_unstemmed |
Submarine Glacial Landforms on the Cold East Antarctic Margin |
title_sort |
submarine glacial landforms on the cold east antarctic margin |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2016 |
url |
https://digitalcommons.usf.edu/msc_facpub/593 https://doi.org/10.1144/M46.172 |
long_lat |
ENVELOPE(65.000,65.000,-70.000,-70.000) ENVELOPE(8.933,8.933,63.283,63.283) |
geographic |
Antarctic Southern Ocean Weddell Sea East Antarctica Ross Sea Prydz Bay Weddell Mac.Robertson Land Solli |
geographic_facet |
Antarctic Southern Ocean Weddell Sea East Antarctica Ross Sea Prydz Bay Weddell Mac.Robertson Land Solli |
genre |
Antarc* Antarctic Antarctica East Antarctica Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/593 https://doi.org/10.1144/M46.172 |
op_doi |
https://doi.org/10.1144/M46.172 |
container_title |
Geological Society, London, Memoirs |
container_volume |
46 |
container_issue |
1 |
container_start_page |
501 |
op_container_end_page |
508 |
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1766048701237690368 |