Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands
This paper is the maritime and sub–Antarctic contribution to the Scientific Committee for Antarctic Research (SCAR) Past Antarctic Ice Sheet Dynamics (PAIS) community Antarctic Ice Sheet reconstruction. The overarching aim for all sectors of Antarctica was to reconstruct the Last Glacial Maximum (LG...
Published in: | Quaternary Science Reviews |
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Digital Commons @ University of South Florida
2014
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Online Access: | https://digitalcommons.usf.edu/msc_facpub/1548 https://doi.org/10.1016/j.quascirev.2013.12.001 https://digitalcommons.usf.edu/context/msc_facpub/article/2562/viewcontent/1_s2.0_S027737911300468X_main.pdf |
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ftusouthflorida:oai:digitalcommons.usf.edu:msc_facpub-2562 2023-07-30T03:59:08+02:00 Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands Hodgson, Dominic A. Graham, Alastair G. C. Roberts, Stephen J. Bentley, Michael J. Cofaigh, Colm Ó. Verleyen, Elie Vyverman, Wim Jomelli, Vincent Favier, Vincent Brunstein, Daniel Verfaillie, Deborah Colhoun, Eric A. Saunders, Krystyna M. Selkirk, Patricia M. Mackintosh, Andrew Hedding, David W. Nel, Werner Hall, Kevin McGlone, Matt S. Van der Putten, Nathalie Dickens, William A. Smith, James A. 2014-01-01T08:00:00Z application/pdf https://digitalcommons.usf.edu/msc_facpub/1548 https://doi.org/10.1016/j.quascirev.2013.12.001 https://digitalcommons.usf.edu/context/msc_facpub/article/2562/viewcontent/1_s2.0_S027737911300468X_main.pdf unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/1548 doi:10.1016/j.quascirev.2013.12.001 https://digitalcommons.usf.edu/context/msc_facpub/article/2562/viewcontent/1_s2.0_S027737911300468X_main.pdf http://creativecommons.org/licenses/by/3.0/ Marine Science Faculty Publications Antarctic ice sheet Sub-Antarctica Maritime Antarctica glaciation Deglaciation Quaternary Climate Life Sciences article 2014 ftusouthflorida https://doi.org/10.1016/j.quascirev.2013.12.001 2023-07-13T21:02:38Z This paper is the maritime and sub–Antarctic contribution to the Scientific Committee for Antarctic Research (SCAR) Past Antarctic Ice Sheet Dynamics (PAIS) community Antarctic Ice Sheet reconstruction. The overarching aim for all sectors of Antarctica was to reconstruct the Last Glacial Maximum (LGM) ice sheet extent and thickness, and map the subsequent deglaciation in a series of 5000 year time slices. However, our review of the literature found surprisingly few high quality chronological constraints on changing glacier extents on these timescales in the maritime and sub–Antarctic sector. Therefore, in this paper we focus on an assessment of the terrestrial and offshore evidence for the LGM ice extent, establishing minimum ages for the onset of deglaciation, and separating evidence of deglaciation from LGM limits from those associated with later Holocene glacier fluctuations. Evidence included geomorphological descriptions of glacial landscapes, radiocarbon dated basal peat and lake sediment deposits, cosmogenic isotope ages of glacial features and molecular biological data. We propose a classification of the glacial history of the maritime and sub–Antarctic islands based on this assembled evidence. These include: (Type I) islands which accumulated little or no LGM ice; (Type II) islands with a limited LGM ice extent but evidence of extensive earlier continental shelf glaciations; (Type III) seamounts and volcanoes unlikely to have accumulated significant LGM ice cover; (Type IV) islands on shallow shelves with both terrestrial and submarine evidence of LGM (and/or earlier) ice expansion; (Type V) Islands north of the Antarctic Polar Front with terrestrial evidence of LGM ice expansion; and (Type VI) islands with no data. Finally, we review the climatological and geomorphological settings that separate the glaciological history of the islands within this classification scheme. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet SCAR University of South Florida St. Petersburg: Digital USFSP Antarctic The Antarctic Quaternary Science Reviews 100 137 158 |
institution |
Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Antarctic ice sheet Sub-Antarctica Maritime Antarctica glaciation Deglaciation Quaternary Climate Life Sciences |
spellingShingle |
Antarctic ice sheet Sub-Antarctica Maritime Antarctica glaciation Deglaciation Quaternary Climate Life Sciences Hodgson, Dominic A. Graham, Alastair G. C. Roberts, Stephen J. Bentley, Michael J. Cofaigh, Colm Ó. Verleyen, Elie Vyverman, Wim Jomelli, Vincent Favier, Vincent Brunstein, Daniel Verfaillie, Deborah Colhoun, Eric A. Saunders, Krystyna M. Selkirk, Patricia M. Mackintosh, Andrew Hedding, David W. Nel, Werner Hall, Kevin McGlone, Matt S. Van der Putten, Nathalie Dickens, William A. Smith, James A. Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
topic_facet |
Antarctic ice sheet Sub-Antarctica Maritime Antarctica glaciation Deglaciation Quaternary Climate Life Sciences |
description |
This paper is the maritime and sub–Antarctic contribution to the Scientific Committee for Antarctic Research (SCAR) Past Antarctic Ice Sheet Dynamics (PAIS) community Antarctic Ice Sheet reconstruction. The overarching aim for all sectors of Antarctica was to reconstruct the Last Glacial Maximum (LGM) ice sheet extent and thickness, and map the subsequent deglaciation in a series of 5000 year time slices. However, our review of the literature found surprisingly few high quality chronological constraints on changing glacier extents on these timescales in the maritime and sub–Antarctic sector. Therefore, in this paper we focus on an assessment of the terrestrial and offshore evidence for the LGM ice extent, establishing minimum ages for the onset of deglaciation, and separating evidence of deglaciation from LGM limits from those associated with later Holocene glacier fluctuations. Evidence included geomorphological descriptions of glacial landscapes, radiocarbon dated basal peat and lake sediment deposits, cosmogenic isotope ages of glacial features and molecular biological data. We propose a classification of the glacial history of the maritime and sub–Antarctic islands based on this assembled evidence. These include: (Type I) islands which accumulated little or no LGM ice; (Type II) islands with a limited LGM ice extent but evidence of extensive earlier continental shelf glaciations; (Type III) seamounts and volcanoes unlikely to have accumulated significant LGM ice cover; (Type IV) islands on shallow shelves with both terrestrial and submarine evidence of LGM (and/or earlier) ice expansion; (Type V) Islands north of the Antarctic Polar Front with terrestrial evidence of LGM ice expansion; and (Type VI) islands with no data. Finally, we review the climatological and geomorphological settings that separate the glaciological history of the islands within this classification scheme. |
format |
Article in Journal/Newspaper |
author |
Hodgson, Dominic A. Graham, Alastair G. C. Roberts, Stephen J. Bentley, Michael J. Cofaigh, Colm Ó. Verleyen, Elie Vyverman, Wim Jomelli, Vincent Favier, Vincent Brunstein, Daniel Verfaillie, Deborah Colhoun, Eric A. Saunders, Krystyna M. Selkirk, Patricia M. Mackintosh, Andrew Hedding, David W. Nel, Werner Hall, Kevin McGlone, Matt S. Van der Putten, Nathalie Dickens, William A. Smith, James A. |
author_facet |
Hodgson, Dominic A. Graham, Alastair G. C. Roberts, Stephen J. Bentley, Michael J. Cofaigh, Colm Ó. Verleyen, Elie Vyverman, Wim Jomelli, Vincent Favier, Vincent Brunstein, Daniel Verfaillie, Deborah Colhoun, Eric A. Saunders, Krystyna M. Selkirk, Patricia M. Mackintosh, Andrew Hedding, David W. Nel, Werner Hall, Kevin McGlone, Matt S. Van der Putten, Nathalie Dickens, William A. Smith, James A. |
author_sort |
Hodgson, Dominic A. |
title |
Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
title_short |
Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
title_full |
Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
title_fullStr |
Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
title_full_unstemmed |
Terrestrial and Submarine Evidence for the Extent and Timing of the Last Glacial Maximum and the Onset of Deglaciation on the Maritime-Antarctic and Sub-Antarctic Islands |
title_sort |
terrestrial and submarine evidence for the extent and timing of the last glacial maximum and the onset of deglaciation on the maritime-antarctic and sub-antarctic islands |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2014 |
url |
https://digitalcommons.usf.edu/msc_facpub/1548 https://doi.org/10.1016/j.quascirev.2013.12.001 https://digitalcommons.usf.edu/context/msc_facpub/article/2562/viewcontent/1_s2.0_S027737911300468X_main.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet SCAR |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet SCAR |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/1548 doi:10.1016/j.quascirev.2013.12.001 https://digitalcommons.usf.edu/context/msc_facpub/article/2562/viewcontent/1_s2.0_S027737911300468X_main.pdf |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1016/j.quascirev.2013.12.001 |
container_title |
Quaternary Science Reviews |
container_volume |
100 |
container_start_page |
137 |
op_container_end_page |
158 |
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1772809843894124544 |