A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum
A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Elsevier
2014
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Subjects: | |
Online Access: | https://nrl.northumbria.ac.uk/id/eprint/17740/ https://doi.org/10.1016/j.quascirev.2014.06.025 |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:17740 |
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Open Polar |
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Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Bentley, Michael Ó Cofaigh, Colm Anderson, John Conway, Howard Davies, Bethan Graham, Alastair Hillenbrand, Claus-Dieter Hodgson, Dominic Jamieson, Stewart Larter, Robert Mackintosh, Andrew Smith, James Verleyen, Elie Ackert, Robert Bart, Philip Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric Crosta, Xavier Dickens, William Domack, Eugene Dowdeswell, Julian Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher Glasser, Neil Gohl, Karsten Golledge, Nicholas Goodwin, Ian Gore, Damian Greenwood, Sarah Hall, Brenda Hall, Kevin Hedding, David Hein, Andrew Hocking, Emma Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad range of geological and glaciological datasets and recent decades have seen an upsurge in such data gathering around the continent and Sub-Antarctic islands. Here, we report a new synthesis of those datasets, based on an accompanying series of reviews of the geological data, organised by sector. We present a series of timeslice maps for 20 ka, 15 ka, 10 ka and 5 ka, including grounding line position and ice sheet thickness changes, along with a clear assessment of levels of confidence. The reconstruction shows that the Antarctic Ice sheet did not everywhere reach the continental shelf edge at its maximum, that initial retreat was asynchronous, and that the spatial pattern of deglaciation was highly variable, particularly on the inner shelf. The deglacial reconstruction is consistent with a moderate overall excess ice volume and with a relatively small Antarctic contribution to meltwater pulse 1a. We discuss key areas of uncertainty both around the continent and by time interval, and we highlight potential priorities for future work. The synthesis is intended to be a resource for the modelling and glacial geological community. |
format |
Article in Journal/Newspaper |
author |
Bentley, Michael Ó Cofaigh, Colm Anderson, John Conway, Howard Davies, Bethan Graham, Alastair Hillenbrand, Claus-Dieter Hodgson, Dominic Jamieson, Stewart Larter, Robert Mackintosh, Andrew Smith, James Verleyen, Elie Ackert, Robert Bart, Philip Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric Crosta, Xavier Dickens, William Domack, Eugene Dowdeswell, Julian Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher Glasser, Neil Gohl, Karsten Golledge, Nicholas Goodwin, Ian Gore, Damian Greenwood, Sarah Hall, Brenda Hall, Kevin Hedding, David Hein, Andrew Hocking, Emma Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine |
author_facet |
Bentley, Michael Ó Cofaigh, Colm Anderson, John Conway, Howard Davies, Bethan Graham, Alastair Hillenbrand, Claus-Dieter Hodgson, Dominic Jamieson, Stewart Larter, Robert Mackintosh, Andrew Smith, James Verleyen, Elie Ackert, Robert Bart, Philip Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric Crosta, Xavier Dickens, William Domack, Eugene Dowdeswell, Julian Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher Glasser, Neil Gohl, Karsten Golledge, Nicholas Goodwin, Ian Gore, Damian Greenwood, Sarah Hall, Brenda Hall, Kevin Hedding, David Hein, Andrew Hocking, Emma Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine |
author_sort |
Bentley, Michael |
title |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_short |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_full |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_fullStr |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_full_unstemmed |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_sort |
community-based geological reconstruction of antarctic ice sheet deglaciation since the last glacial maximum |
publisher |
Elsevier |
publishDate |
2014 |
url |
https://nrl.northumbria.ac.uk/id/eprint/17740/ https://doi.org/10.1016/j.quascirev.2014.06.025 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_relation |
Bentley, Michael, Ó Cofaigh, Colm, Anderson, John, Conway, Howard, Davies, Bethan, Graham, Alastair, Hillenbrand, Claus-Dieter, Hodgson, Dominic, Jamieson, Stewart, Larter, Robert, Mackintosh, Andrew, Smith, James, Verleyen, Elie, Ackert, Robert, Bart, Philip, Berg, Sonja, Brunstein, Daniel, Canals, Miguel, Colhoun, Eric, Crosta, Xavier, Dickens, William, Domack, Eugene, Dowdeswell, Julian, Dunbar, Robert, Ehrmann, Werner, Evans, Jeffrey, Favier, Vincent, Fink, David, Fogwill, Christopher, Glasser, Neil, Gohl, Karsten, Golledge, Nicholas, Goodwin, Ian, Gore, Damian, Greenwood, Sarah, Hall, Brenda, Hall, Kevin, Hedding, David, Hein, Andrew, Hocking, Emma, Jakobsson, Martin, Johnson, Joanne S., Jomelli, Vincent, Jones, R. Selwyn, Klages, Johann, Kristoffersen, Yngve, Kuhn, Gerhard, Leventer, Amy, Licht, Kathy, Lilly, Katherine, Lindow, Julia, Livingstone, Stephen, Masse, Guillaume, McGlone, Matt, McKay, Robert, Melles, Martin, Miura, Hideki, Mulvaney, Robert, Nel, Werner, Nitsche, Frank, O'Brien, Philip, Post, Alexandra, Roberts, Stephen J., Saunders, Krystyna, Selkirk, Patricia, Simms, Alexander, Spiegel, Cornelia, Stolldorf, Travis, Sugden, David, van der Putten, Nathalie, van Ommen, Tas, Verfaillie, Deborah, Vyverman, Wim, Wagner, Bernd, White, Duanne, Witus, Alexandra and Zwartz, Dan (2014) A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum. Quaternary Science Reviews, 100. pp. 1-9. ISSN 0277-3791 |
op_doi |
https://doi.org/10.1016/j.quascirev.2014.06.025 |
container_title |
Quaternary Science Reviews |
container_volume |
100 |
container_start_page |
1 |
op_container_end_page |
9 |
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1766067072132972544 |
spelling |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:17740 2023-05-15T13:35:33+02:00 A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum Bentley, Michael Ó Cofaigh, Colm Anderson, John Conway, Howard Davies, Bethan Graham, Alastair Hillenbrand, Claus-Dieter Hodgson, Dominic Jamieson, Stewart Larter, Robert Mackintosh, Andrew Smith, James Verleyen, Elie Ackert, Robert Bart, Philip Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric Crosta, Xavier Dickens, William Domack, Eugene Dowdeswell, Julian Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher Glasser, Neil Gohl, Karsten Golledge, Nicholas Goodwin, Ian Gore, Damian Greenwood, Sarah Hall, Brenda Hall, Kevin Hedding, David Hein, Andrew Hocking, Emma Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine 2014-09 https://nrl.northumbria.ac.uk/id/eprint/17740/ https://doi.org/10.1016/j.quascirev.2014.06.025 unknown Elsevier Bentley, Michael, Ó Cofaigh, Colm, Anderson, John, Conway, Howard, Davies, Bethan, Graham, Alastair, Hillenbrand, Claus-Dieter, Hodgson, Dominic, Jamieson, Stewart, Larter, Robert, Mackintosh, Andrew, Smith, James, Verleyen, Elie, Ackert, Robert, Bart, Philip, Berg, Sonja, Brunstein, Daniel, Canals, Miguel, Colhoun, Eric, Crosta, Xavier, Dickens, William, Domack, Eugene, Dowdeswell, Julian, Dunbar, Robert, Ehrmann, Werner, Evans, Jeffrey, Favier, Vincent, Fink, David, Fogwill, Christopher, Glasser, Neil, Gohl, Karsten, Golledge, Nicholas, Goodwin, Ian, Gore, Damian, Greenwood, Sarah, Hall, Brenda, Hall, Kevin, Hedding, David, Hein, Andrew, Hocking, Emma, Jakobsson, Martin, Johnson, Joanne S., Jomelli, Vincent, Jones, R. Selwyn, Klages, Johann, Kristoffersen, Yngve, Kuhn, Gerhard, Leventer, Amy, Licht, Kathy, Lilly, Katherine, Lindow, Julia, Livingstone, Stephen, Masse, Guillaume, McGlone, Matt, McKay, Robert, Melles, Martin, Miura, Hideki, Mulvaney, Robert, Nel, Werner, Nitsche, Frank, O'Brien, Philip, Post, Alexandra, Roberts, Stephen J., Saunders, Krystyna, Selkirk, Patricia, Simms, Alexander, Spiegel, Cornelia, Stolldorf, Travis, Sugden, David, van der Putten, Nathalie, van Ommen, Tas, Verfaillie, Deborah, Vyverman, Wim, Wagner, Bernd, White, Duanne, Witus, Alexandra and Zwartz, Dan (2014) A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum. Quaternary Science Reviews, 100. pp. 1-9. ISSN 0277-3791 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2014 ftunivnorthumb https://doi.org/10.1016/j.quascirev.2014.06.025 2022-09-25T06:00:06Z A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad range of geological and glaciological datasets and recent decades have seen an upsurge in such data gathering around the continent and Sub-Antarctic islands. Here, we report a new synthesis of those datasets, based on an accompanying series of reviews of the geological data, organised by sector. We present a series of timeslice maps for 20 ka, 15 ka, 10 ka and 5 ka, including grounding line position and ice sheet thickness changes, along with a clear assessment of levels of confidence. The reconstruction shows that the Antarctic Ice sheet did not everywhere reach the continental shelf edge at its maximum, that initial retreat was asynchronous, and that the spatial pattern of deglaciation was highly variable, particularly on the inner shelf. The deglacial reconstruction is consistent with a moderate overall excess ice volume and with a relatively small Antarctic contribution to meltwater pulse 1a. We discuss key areas of uncertainty both around the continent and by time interval, and we highlight potential priorities for future work. The synthesis is intended to be a resource for the modelling and glacial geological community. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic The Antarctic Quaternary Science Reviews 100 1 9 |