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...
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Uppsala universitet, Naturresurser och hållbar utveckling
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397318 https://doi.org/10.1038/s41598-019-51983-3 |
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ftuppsalauniv:oai:DiVA.org:uu-397318 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 Przybylo, Piotr Snowball, Ian 2019 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397318 https://doi.org/10.1038/s41598-019-51983-3 eng eng Uppsala universitet, Naturresurser och hållbar utveckling Aarhus Univ, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark Geol Survey Denmark & Greenland GEUS, Oster Voldgade 10, DK-1350 Copenhagen K, Denmark Aarhus Univ, Dept Phys & Astron, Aarhus AMS Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark Univ Gothenburg, Dept Earth Sci, Gothenburg, Sweden Aarhus Univ, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;DJ Miljo & Geotekn, Falkevej 12, DK-3400 Hillerod, Denmark Aarhus Univ, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;25 Coleherne Rd, London SW10 9BS, England NATURE PUBLISHING GROUP Scientific Reports, 2019, 9, orcid:0000-0002-4445-5520 orcid:0000-0002-6257-3088 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397318 doi:10.1038/s41598-019-51983-3 PMID 31666580 ISI:000493276600048 info:eu-repo/semantics/openAccess Physical Geography Naturgeografi Article in journal info:eu-repo/semantics/article text 2019 ftuppsalauniv https://doi.org/10.1038/s41598-019-51983-3 2023-02-23T22:00:33Z 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 Uppsala University: Publications (DiVA) Canada Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Scientific Reports 9 1 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Physical Geography Naturgeografi |
spellingShingle |
Physical Geography Naturgeografi Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybylo, Piotr Snowball, Ian Southwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum |
topic_facet |
Physical Geography Naturgeografi |
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 Przybylo, Piotr Snowball, Ian |
author_facet |
Seidenkrantz, Marit-Solveig Kuijpers, Antoon Olsen, Jesper Pearce, Christof Lindblom, Sofia Ploug, Johan Przybylo, 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 |
Uppsala universitet, Naturresurser och hållbar utveckling |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397318 https://doi.org/10.1038/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_relation |
Scientific Reports, 2019, 9, orcid:0000-0002-4445-5520 orcid:0000-0002-6257-3088 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397318 doi:10.1038/s41598-019-51983-3 PMID 31666580 ISI:000493276600048 |
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_ |
1766396106920427520 |