Submarine glacial landforms on the cold East Antarctic margin
[Extract] 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 but has only been studied in a few locations because of remoteness and persistent sea ice. The shelf is 100-150 km wide over most of its l...
Published in: | Geological Society, London, Memoirs |
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The Geological Society of London
2015
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Online Access: | https://researchonline.jcu.edu.au/47701/6/47701%20OBrien%20et%20al%202016.pdf |
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ftjamescook:oai:researchonline.jcu.edu.au:47701 2024-02-11T09:58:48+01:00 Submarine glacial landforms on the cold East Antarctic margin O'Brien, P.E. Beaman, R. De Santis, L. Domack, E.W. Escutia, C. Harris, P.T. Leventer, A. McMullen, K. Post, A. Quilty, P.G. Shevennell, A.E. Batchelor, C.L. Dowdeswell, J.A. Canals, M. Jakobsson, M. Todd, B.J. Dowdeswell, E.K. Hogan, K.A. 2015 application/pdf https://researchonline.jcu.edu.au/47701/6/47701%20OBrien%20et%20al%202016.pdf unknown The Geological Society of London http://dx.doi.org/10.1144/M46.172 https://researchonline.jcu.edu.au/47701/ https://researchonline.jcu.edu.au/47701/6/47701%20OBrien%20et%20al%202016.pdf O'Brien, P.E., Beaman, R., De Santis, L., Domack, E.W., Escutia, C., Harris, P.T., Leventer, A., McMullen, K., Post, A., Quilty, P.G., Shevennell, A.E., and Batchelor, C.L. (2015) Submarine glacial landforms on the cold East Antarctic margin. In: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., and Hogan, K.A., (eds.) Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Memoir, 46 . The Geological Society of London, Bath, UK, pp. 501-508. restricted Book Chapter PeerReviewed 2015 ftjamescook https://doi.org/10.1144/M46.172 2024-01-22T23:39:11Z [Extract] 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 but has only been studied in a few locations because of 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 Land-Terre Adélie 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 singlebeam bathymetry, seismic-reflection profiles and side-scan sonar data: in particular, we use the George V Digital Elevation Model (GVDEM, Beaman et al. 2011) and International Bathymetric Chart of the Southern Ocean (IBCSO; Arndt at al. 2013). The slope has been more widely studied, with large amounts of seismic-reflection data available (e.g. Kuvaas & Leitchenkov 1991; Escutia et al. 2005; Solli et al. 2007; Close et al. 2010). Book Part Antarc* Antarctic Antarctica East Antarctica George V Land Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea James Cook University, Australia: ResearchOnline@JCU Antarctic East Antarctica George V Land ENVELOPE(148.000,148.000,-68.500,-68.500) Mac.Robertson Land ENVELOPE(65.000,65.000,-70.000,-70.000) Prydz Bay Ross Sea Solli ENVELOPE(8.933,8.933,63.283,63.283) Southern Ocean Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) Weddell Weddell Sea Geological Society, London, Memoirs 46 1 501 508 |
institution |
Open Polar |
collection |
James Cook University, Australia: ResearchOnline@JCU |
op_collection_id |
ftjamescook |
language |
unknown |
description |
[Extract] 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 but has only been studied in a few locations because of 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 Land-Terre Adélie 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 singlebeam bathymetry, seismic-reflection profiles and side-scan sonar data: in particular, we use the George V Digital Elevation Model (GVDEM, Beaman et al. 2011) and International Bathymetric Chart of the Southern Ocean (IBCSO; Arndt at al. 2013). The slope has been more widely studied, with large amounts of seismic-reflection data available (e.g. Kuvaas & Leitchenkov 1991; Escutia et al. 2005; Solli et al. 2007; Close et al. 2010). |
author2 |
Dowdeswell, J.A. Canals, M. Jakobsson, M. Todd, B.J. Dowdeswell, E.K. Hogan, K.A. |
format |
Book Part |
author |
O'Brien, P.E. Beaman, R. De Santis, L. Domack, E.W. Escutia, C. Harris, P.T. Leventer, A. McMullen, K. Post, A. Quilty, P.G. Shevennell, A.E. Batchelor, C.L. |
spellingShingle |
O'Brien, P.E. Beaman, R. De Santis, L. Domack, E.W. Escutia, C. Harris, P.T. Leventer, A. McMullen, K. Post, A. Quilty, P.G. Shevennell, A.E. Batchelor, C.L. Submarine glacial landforms on the cold East Antarctic margin |
author_facet |
O'Brien, P.E. Beaman, R. De Santis, L. Domack, E.W. Escutia, C. Harris, P.T. Leventer, A. McMullen, K. Post, A. Quilty, P.G. Shevennell, A.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 |
The Geological Society of London |
publishDate |
2015 |
url |
https://researchonline.jcu.edu.au/47701/6/47701%20OBrien%20et%20al%202016.pdf |
long_lat |
ENVELOPE(148.000,148.000,-68.500,-68.500) ENVELOPE(65.000,65.000,-70.000,-70.000) ENVELOPE(8.933,8.933,63.283,63.283) ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) |
geographic |
Antarctic East Antarctica George V Land Mac.Robertson Land Prydz Bay Ross Sea Solli Southern Ocean Terre Adélie Terre-Adélie Weddell Weddell Sea |
geographic_facet |
Antarctic East Antarctica George V Land Mac.Robertson Land Prydz Bay Ross Sea Solli Southern Ocean Terre Adélie Terre-Adélie Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica East Antarctica George V Land Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica George V Land Mac.Robertson Land Prydz Bay Ross Sea Sea ice Southern Ocean Weddell Sea |
op_relation |
http://dx.doi.org/10.1144/M46.172 https://researchonline.jcu.edu.au/47701/ https://researchonline.jcu.edu.au/47701/6/47701%20OBrien%20et%20al%202016.pdf O'Brien, P.E., Beaman, R., De Santis, L., Domack, E.W., Escutia, C., Harris, P.T., Leventer, A., McMullen, K., Post, A., Quilty, P.G., Shevennell, A.E., and Batchelor, C.L. (2015) Submarine glacial landforms on the cold East Antarctic margin. In: Dowdeswell, J.A., Canals, M., Jakobsson, M., Todd, B.J., Dowdeswell, E.K., and Hogan, K.A., (eds.) Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Memoir, 46 . The Geological Society of London, Bath, UK, pp. 501-508. |
op_rights |
restricted |
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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1790594567650672640 |