Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica
Within Earth's ice sheets, fast-flowing ice streams are the principal components through which ice and sediment are discharged, accounting for c. 90% of the ice lost from the Antarctic today (Bamber et al. 2000). The processes occurring at ice-stream beds, therefore, lie at the heart of resolvi...
Published in: | Geological Society, London, Memoirs |
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Online Access: | https://digitalcommons.usf.edu/msc_facpub/1561 https://doi.org/10.1144/M46.176 |
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ftusouthflorida:oai:digitalcommons.usf.edu:msc_facpub-2549 2023-07-30T03:58:37+02:00 Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica Graham, A. G. C. Nitsche, F. O. Larter, R. D. Gohl, K. 2016-01-01T08:00:00Z https://digitalcommons.usf.edu/msc_facpub/1561 https://doi.org/10.1144/M46.176 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/1561 doi:10.1144/M46.176 https://doi.org/10.1144/M46.176 Marine Science Faculty Publications Life Sciences article 2016 ftusouthflorida https://doi.org/10.1144/M46.176 2023-07-13T21:02:23Z Within Earth's ice sheets, fast-flowing ice streams are the principal components through which ice and sediment are discharged, accounting for c. 90% of the ice lost from the Antarctic today (Bamber et al. 2000). The processes occurring at ice-stream beds, therefore, lie at the heart of resolving how and why major ice-stream systems may change in the future. Although drill-cores and ice-surface seismic methods have been employed to survey the beds of some of West Antarctica's ice streams, studies are still hampered by the logistical and technological challenges associated with understanding a dynamic and spatially extensive interface buried beneath kilometre-thick continental ice (Larter et al. 2009). Here, a multibeam swath-bathymetric dataset acquired from the Dotson–Getz palaeo-ice-stream bed, offshore of West Antarctica, is described (Fig. 1a). In contrast to the modern ice-sheet base, the spatial coverage and quality of the marine data allow us to analyse landform evolution along an entire ice-stream bed that is both completely exposed and well preserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet West Antarctica University of South Florida St. Petersburg: Digital USFSP Antarctic Getz ENVELOPE(-145.217,-145.217,-76.550,-76.550) The Antarctic West Antarctica Geological Society, London, Memoirs 46 1 345 348 |
institution |
Open Polar |
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University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Life Sciences |
spellingShingle |
Life Sciences Graham, A. G. C. Nitsche, F. O. Larter, R. D. Gohl, K. Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
topic_facet |
Life Sciences |
description |
Within Earth's ice sheets, fast-flowing ice streams are the principal components through which ice and sediment are discharged, accounting for c. 90% of the ice lost from the Antarctic today (Bamber et al. 2000). The processes occurring at ice-stream beds, therefore, lie at the heart of resolving how and why major ice-stream systems may change in the future. Although drill-cores and ice-surface seismic methods have been employed to survey the beds of some of West Antarctica's ice streams, studies are still hampered by the logistical and technological challenges associated with understanding a dynamic and spatially extensive interface buried beneath kilometre-thick continental ice (Larter et al. 2009). Here, a multibeam swath-bathymetric dataset acquired from the Dotson–Getz palaeo-ice-stream bed, offshore of West Antarctica, is described (Fig. 1a). In contrast to the modern ice-sheet base, the spatial coverage and quality of the marine data allow us to analyse landform evolution along an entire ice-stream bed that is both completely exposed and well preserved. |
format |
Article in Journal/Newspaper |
author |
Graham, A. G. C. Nitsche, F. O. Larter, R. D. Gohl, K. |
author_facet |
Graham, A. G. C. Nitsche, F. O. Larter, R. D. Gohl, K. |
author_sort |
Graham, A. G. C. |
title |
Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
title_short |
Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
title_full |
Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
title_fullStr |
Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
title_full_unstemmed |
Submarine Landform Assemblage Produced Beneath the Dotson–Getz Palaeo-ice Stream, West Antarctica |
title_sort |
submarine landform assemblage produced beneath the dotson–getz palaeo-ice stream, west antarctica |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2016 |
url |
https://digitalcommons.usf.edu/msc_facpub/1561 https://doi.org/10.1144/M46.176 |
long_lat |
ENVELOPE(-145.217,-145.217,-76.550,-76.550) |
geographic |
Antarctic Getz The Antarctic West Antarctica |
geographic_facet |
Antarctic Getz The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/1561 doi:10.1144/M46.176 https://doi.org/10.1144/M46.176 |
op_doi |
https://doi.org/10.1144/M46.176 |
container_title |
Geological Society, London, Memoirs |
container_volume |
46 |
container_issue |
1 |
container_start_page |
345 |
op_container_end_page |
348 |
_version_ |
1772821381984026624 |