Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum
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...
Published in: | Scientific Reports |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://pure.au.dk/portal/da/publications/southwest-greenland-shelf-glaciation-during-mis-4-more-extensive-than-during-the-last-glacial-maximum(eb881395-647f-4289-b0c5-15229ac1aea7).html https://doi.org/10.1038/s41598-019-51983-3 https://pure.au.dk/ws/files/172160910/Seidenkrantz_et_al_2019_MIS4_Scientific_Reports.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/eb881395-647f-4289-b0c5-15229ac1aea7 2023-11-12T04:16:22+01:00 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 2019 application/pdf https://pure.au.dk/portal/da/publications/southwest-greenland-shelf-glaciation-during-mis-4-more-extensive-than-during-the-last-glacial-maximum(eb881395-647f-4289-b0c5-15229ac1aea7).html https://doi.org/10.1038/s41598-019-51983-3 https://pure.au.dk/ws/files/172160910/Seidenkrantz_et_al_2019_MIS4_Scientific_Reports.pdf eng eng https://pure.au.dk/portal/da/publications/southwest-greenland-shelf-glaciation-during-mis-4-more-extensive-than-during-the-last-glacial-maximum(eb881395-647f-4289-b0c5-15229ac1aea7).html info:eu-repo/semantics/openAccess Seidenkrantz , M-S , Kuijpers , A , Olsen , J , Pearce , C , Lindblom , S , Ploug , J , Przybyło , P & Snowball , I 2019 , ' Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum ' , Scientific Reports , vol. 9 , no. 1 , 15617 . https://doi.org/10.1038/s41598-019-51983-3 BENTHIC FORAMINIFERA CIRCULATION CHANGES DEEP-SEA HEINRICH EVENTS ICE-SHEET IRMINGER SEA KARA SEA LABRADOR SEA NORTH-ATLANTIC SURFACE article 2019 ftuniaarhuspubl https://doi.org/10.1038/s41598-019-51983-3 2023-10-25T22:59:50Z 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 Kara Sea Labrador Sea North Atlantic Aarhus University: Research Canada Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Kara Sea Scientific Reports 9 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
BENTHIC FORAMINIFERA CIRCULATION CHANGES DEEP-SEA HEINRICH EVENTS ICE-SHEET IRMINGER SEA KARA SEA LABRADOR SEA NORTH-ATLANTIC SURFACE |
spellingShingle |
BENTHIC FORAMINIFERA CIRCULATION CHANGES DEEP-SEA HEINRICH EVENTS ICE-SHEET IRMINGER SEA KARA SEA LABRADOR SEA NORTH-ATLANTIC SURFACE 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 |
BENTHIC FORAMINIFERA CIRCULATION CHANGES DEEP-SEA HEINRICH EVENTS ICE-SHEET IRMINGER SEA KARA SEA LABRADOR SEA NORTH-ATLANTIC SURFACE |
description |
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. |
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 |
publishDate |
2019 |
url |
https://pure.au.dk/portal/da/publications/southwest-greenland-shelf-glaciation-during-mis-4-more-extensive-than-during-the-last-glacial-maximum(eb881395-647f-4289-b0c5-15229ac1aea7).html https://doi.org/10.1038/s41598-019-51983-3 https://pure.au.dk/ws/files/172160910/Seidenkrantz_et_al_2019_MIS4_Scientific_Reports.pdf |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Canada Greenland Irminger Sea Kara Sea |
geographic_facet |
Canada Greenland Irminger Sea Kara Sea |
genre |
Davis Strait Greenland Ice Sheet Kara Sea Labrador Sea North Atlantic |
genre_facet |
Davis Strait Greenland Ice Sheet Kara Sea Labrador Sea North Atlantic |
op_source |
Seidenkrantz , M-S , Kuijpers , A , Olsen , J , Pearce , C , Lindblom , S , Ploug , J , Przybyło , P & Snowball , I 2019 , ' Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum ' , Scientific Reports , vol. 9 , no. 1 , 15617 . https://doi.org/10.1038/s41598-019-51983-3 |
op_relation |
https://pure.au.dk/portal/da/publications/southwest-greenland-shelf-glaciation-during-mis-4-more-extensive-than-during-the-last-glacial-maximum(eb881395-647f-4289-b0c5-15229ac1aea7).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-019-51983-3 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1782333476623613952 |