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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Format: | Article in Journal/Newspaper |
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2014
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Online Access: | https://lup.lub.lu.se/record/4702700 https://doi.org/10.1016/j.quascirev.2014.06.025 |
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ftulundlup:oai:lup.lub.lu.se:a621b9f6-31ce-466f-b714-c206f7ba6642 2023-05-15T13:50:27+02:00 A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum Bentley, Michael J. Cofaigh, Colm O. Anderson, John B. Conway, Howard Davies, Bethan Graham, Alastair G. C. Hillenbrand, Claus-Dieter Hodgson, Dominic A. Jamieson, Stewart S. R. Larter, Robert D. Mackintosh, Andrew Smith, James A. Verleyen, Elie Ackert, Robert P. Bart, Philip J. Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric A. Crosta, Xavier Dickens, William A. Domack, Eugene Dowdeswell, Julian A. Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher J. Glasser, Neil F. Gohl, Karsten Golledge, Nicholas R. Goodwin, Ian Gore, Damian B. Greenwood, Sarah L. Hall, Brenda L. Hall, Kevin Hedding, David W. Hein, Andrew S. Hocking, Emma P. Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann P. Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine 2014 https://lup.lub.lu.se/record/4702700 https://doi.org/10.1016/j.quascirev.2014.06.025 eng eng Elsevier https://lup.lub.lu.se/record/4702700 http://dx.doi.org/10.1016/j.quascirev.2014.06.025 wos:000342252700001 scopus:84907595436 Quaternary Science Reviews; 100, pp 1-9 (2014) ISSN: 0277-3791 Geology Antarctic Ice Sheet Glacial geology Modelling Quaternary contributiontojournal/article info:eu-repo/semantics/article text 2014 ftulundlup https://doi.org/10.1016/j.quascirev.2014.06.025 2023-02-01T23:29:01Z 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 la. 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. (C) 2014 The Authors. Published by Elsevier Ltd. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Lund University Publications (LUP) Antarctic The Antarctic Quaternary Science Reviews 100 1 9 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Antarctic Ice Sheet Glacial geology Modelling Quaternary |
spellingShingle |
Geology Antarctic Ice Sheet Glacial geology Modelling Quaternary Bentley, Michael J. Cofaigh, Colm O. Anderson, John B. Conway, Howard Davies, Bethan Graham, Alastair G. C. Hillenbrand, Claus-Dieter Hodgson, Dominic A. Jamieson, Stewart S. R. Larter, Robert D. Mackintosh, Andrew Smith, James A. Verleyen, Elie Ackert, Robert P. Bart, Philip J. Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric A. Crosta, Xavier Dickens, William A. Domack, Eugene Dowdeswell, Julian A. Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher J. Glasser, Neil F. Gohl, Karsten Golledge, Nicholas R. Goodwin, Ian Gore, Damian B. Greenwood, Sarah L. Hall, Brenda L. Hall, Kevin Hedding, David W. Hein, Andrew S. Hocking, Emma P. Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann P. 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 |
Geology Antarctic Ice Sheet Glacial geology Modelling Quaternary |
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 la. 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. (C) 2014 The Authors. Published by Elsevier Ltd. |
format |
Article in Journal/Newspaper |
author |
Bentley, Michael J. Cofaigh, Colm O. Anderson, John B. Conway, Howard Davies, Bethan Graham, Alastair G. C. Hillenbrand, Claus-Dieter Hodgson, Dominic A. Jamieson, Stewart S. R. Larter, Robert D. Mackintosh, Andrew Smith, James A. Verleyen, Elie Ackert, Robert P. Bart, Philip J. Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric A. Crosta, Xavier Dickens, William A. Domack, Eugene Dowdeswell, Julian A. Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher J. Glasser, Neil F. Gohl, Karsten Golledge, Nicholas R. Goodwin, Ian Gore, Damian B. Greenwood, Sarah L. Hall, Brenda L. Hall, Kevin Hedding, David W. Hein, Andrew S. Hocking, Emma P. Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann P. Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine |
author_facet |
Bentley, Michael J. Cofaigh, Colm O. Anderson, John B. Conway, Howard Davies, Bethan Graham, Alastair G. C. Hillenbrand, Claus-Dieter Hodgson, Dominic A. Jamieson, Stewart S. R. Larter, Robert D. Mackintosh, Andrew Smith, James A. Verleyen, Elie Ackert, Robert P. Bart, Philip J. Berg, Sonja Brunstein, Daniel Canals, Miguel Colhoun, Eric A. Crosta, Xavier Dickens, William A. Domack, Eugene Dowdeswell, Julian A. Dunbar, Robert Ehrmann, Werner Evans, Jeffrey Favier, Vincent Fink, David Fogwill, Christopher J. Glasser, Neil F. Gohl, Karsten Golledge, Nicholas R. Goodwin, Ian Gore, Damian B. Greenwood, Sarah L. Hall, Brenda L. Hall, Kevin Hedding, David W. Hein, Andrew S. Hocking, Emma P. Jakobsson, Martin Johnson, Joanne S. Jomelli, Vincent Jones, R. Selwyn Klages, Johann P. Kristoffersen, Yngve Kuhn, Gerhard Leventer, Amy Licht, Kathy Lilly, Katherine |
author_sort |
Bentley, Michael J. |
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://lup.lub.lu.se/record/4702700 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_source |
Quaternary Science Reviews; 100, pp 1-9 (2014) ISSN: 0277-3791 |
op_relation |
https://lup.lub.lu.se/record/4702700 http://dx.doi.org/10.1016/j.quascirev.2014.06.025 wos:000342252700001 scopus:84907595436 |
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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1766253512086257664 |