Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum
Abstract Although geological and modelling evidence indicate that the last glacial inception in North America was in NE Canada, little is known about the glacial response of the nearby western Greenland Ice Sheet (GIS) during the glacial advance of marine oxygen isotope stage 4 (MIS4). Our multi-pro...
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Online Access: | http://dx.doi.org/10.1038/s41598-019-51983-3 http://www.nature.com/articles/s41598-019-51983-3.pdf http://www.nature.com/articles/s41598-019-51983-3 |
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crspringernat:10.1038/s41598-019-51983-3 2023-05-15T16:00:13+02:00 Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybyło, Piotr Snowball, Ian Det Frie Forskningsråd 2019 http://dx.doi.org/10.1038/s41598-019-51983-3 http://www.nature.com/articles/s41598-019-51983-3.pdf http://www.nature.com/articles/s41598-019-51983-3 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 9, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2019 crspringernat https://doi.org/10.1038/s41598-019-51983-3 2022-01-04T16:20:15Z Abstract Although geological and modelling evidence indicate that the last glacial inception in North America was in NE Canada, little is known about the glacial response of the nearby western Greenland Ice Sheet (GIS) during the glacial advance of marine oxygen isotope stage 4 (MIS4). Our multi-proxy study of a marine sediment core collected about 60 km southwest of the Outer Hellefisk Moraines demonstrates that in the southern Davis Strait region the most extreme Greenland shelf glaciation of the last glacial cycle occurred during MIS 4, with another prominent glacial advance at 37–33 kyr BP. During those periods the GIS likely reached the Outer Hellefisk Moraines in this area. Except for these two periods, our data suggest significant advection of relatively warm Irminger Sea Water by the West Greenland Current since MIS 4. This advection likely limited the extent of the MIS2 glaciation on the SW Greenland shelf. Decreased precipitation over southwestern Greenland predicted by atmospheric models as a downstream effect of a much larger MIS2 Laurentide Ice Sheet may have played an additional role. Article in Journal/Newspaper Davis Strait Greenland Ice Sheet Springer Nature (via Crossref) Canada Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Scientific Reports 9 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybyło, Piotr Snowball, Ian Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
topic_facet |
Multidisciplinary |
description |
Abstract Although geological and modelling evidence indicate that the last glacial inception in North America was in NE Canada, little is known about the glacial response of the nearby western Greenland Ice Sheet (GIS) during the glacial advance of marine oxygen isotope stage 4 (MIS4). Our multi-proxy study of a marine sediment core collected about 60 km southwest of the Outer Hellefisk Moraines demonstrates that in the southern Davis Strait region the most extreme Greenland shelf glaciation of the last glacial cycle occurred during MIS 4, with another prominent glacial advance at 37–33 kyr BP. During those periods the GIS likely reached the Outer Hellefisk Moraines in this area. Except for these two periods, our data suggest significant advection of relatively warm Irminger Sea Water by the West Greenland Current since MIS 4. This advection likely limited the extent of the MIS2 glaciation on the SW Greenland shelf. Decreased precipitation over southwestern Greenland predicted by atmospheric models as a downstream effect of a much larger MIS2 Laurentide Ice Sheet may have played an additional role. |
author2 |
Det Frie Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybyło, Piotr Snowball, Ian |
author_facet |
Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybyło, Piotr Snowball, Ian |
author_sort |
Seidenkrantz, Marit-Solveig |
title |
Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
title_short |
Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
title_full |
Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
title_fullStr |
Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
title_full_unstemmed |
Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
title_sort |
southwest greenland shelf glaciation during mis 4 more extensive than during the last glacial maximum |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1038/s41598-019-51983-3 http://www.nature.com/articles/s41598-019-51983-3.pdf http://www.nature.com/articles/s41598-019-51983-3 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Canada Greenland Irminger Sea |
geographic_facet |
Canada Greenland Irminger Sea |
genre |
Davis Strait Greenland Ice Sheet |
genre_facet |
Davis Strait Greenland Ice Sheet |
op_source |
Scientific Reports volume 9, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-51983-3 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
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1766396107956420608 |