Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend
The Younger Dryas (YD) is recognized as a cool period that began and ended abruptly during a time of general warming at the end of the last glacial. New multi-proxy data from a sediment gravity core from Storfjordrenna (western Barents Sea, 253 m water depth) reveals that the onset of the YD occurre...
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ftunivtroemsoe:oai:munin.uit.no:10037/20307 2023-05-15T15:38:31+02:00 Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend Łącka, Magdalena Michalska, Danuta Pawłowska, Joanna Szymańska, Natalia Szczuciński, Witold Forwick, Matthias Zajączkowski, Marek 2020-09-24 https://hdl.handle.net/10037/20307 https://doi.org/10.1038/s41598-020-72747-4 eng eng Springer Nature Scientific Reports Łącka M, Michalska, Pawłowska J, Szymańska N, Szczuciński W, Forwick M, Zajączkowski M. Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend. Scientific Reports. 2020;10 FRIDAID 1871817 doi:10.1038/s41598-020-72747-4 2045-2322 https://hdl.handle.net/10037/20307 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1038/s41598-020-72747-4 2021-06-25T17:58:00Z The Younger Dryas (YD) is recognized as a cool period that began and ended abruptly during a time of general warming at the end of the last glacial. New multi-proxy data from a sediment gravity core from Storfjordrenna (western Barents Sea, 253 m water depth) reveals that the onset of the YD occurred as a single short-lived dramatic environment deterioration, whereas the subsequent warming was oscillatory. The water masses in the western Barents Sea were likely strongly stratified at the onset of the YD, possibly due to runoff of meltwater combined with perennial sea-ice cover, the latter may last up to several decades without any brake-up. Consequently, anoxic conditions prevailed at the bottom of Storfjordrenna, leading to a sharp reduction of benthic biota and the appearance of vivianite microconcretions which formation is favoured by reducing conditions. While the anoxic conditions in Storfjordrenna were transient, the unfavorable conditions for benthic foraminifera lasted for c. 1300 years. We suggest that the Pre-Boreal Oscillation, just after the onset of the Holocene, may have been a continuation of the oscillatory warming trend during the YD. Article in Journal/Newspaper Barents Sea Sea ice Storfjordrenna University of Tromsø: Munin Open Research Archive Barents Sea Storfjordrenna ENVELOPE(17.000,17.000,76.000,76.000) Scientific Reports 10 1 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461 Łącka, Magdalena Michalska, Danuta Pawłowska, Joanna Szymańska, Natalia Szczuciński, Witold Forwick, Matthias Zajączkowski, Marek Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461 |
description |
The Younger Dryas (YD) is recognized as a cool period that began and ended abruptly during a time of general warming at the end of the last glacial. New multi-proxy data from a sediment gravity core from Storfjordrenna (western Barents Sea, 253 m water depth) reveals that the onset of the YD occurred as a single short-lived dramatic environment deterioration, whereas the subsequent warming was oscillatory. The water masses in the western Barents Sea were likely strongly stratified at the onset of the YD, possibly due to runoff of meltwater combined with perennial sea-ice cover, the latter may last up to several decades without any brake-up. Consequently, anoxic conditions prevailed at the bottom of Storfjordrenna, leading to a sharp reduction of benthic biota and the appearance of vivianite microconcretions which formation is favoured by reducing conditions. While the anoxic conditions in Storfjordrenna were transient, the unfavorable conditions for benthic foraminifera lasted for c. 1300 years. We suggest that the Pre-Boreal Oscillation, just after the onset of the Holocene, may have been a continuation of the oscillatory warming trend during the YD. |
format |
Article in Journal/Newspaper |
author |
Łącka, Magdalena Michalska, Danuta Pawłowska, Joanna Szymańska, Natalia Szczuciński, Witold Forwick, Matthias Zajączkowski, Marek |
author_facet |
Łącka, Magdalena Michalska, Danuta Pawłowska, Joanna Szymańska, Natalia Szczuciński, Witold Forwick, Matthias Zajączkowski, Marek |
author_sort |
Łącka, Magdalena |
title |
Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
title_short |
Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
title_full |
Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
title_fullStr |
Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
title_full_unstemmed |
Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend |
title_sort |
multiproxy paleoceanographic study from the western barents sea reveals dramatic younger dryas onset followed by oscillatory warming trend |
publisher |
Springer Nature |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20307 https://doi.org/10.1038/s41598-020-72747-4 |
long_lat |
ENVELOPE(17.000,17.000,76.000,76.000) |
geographic |
Barents Sea Storfjordrenna |
geographic_facet |
Barents Sea Storfjordrenna |
genre |
Barents Sea Sea ice Storfjordrenna |
genre_facet |
Barents Sea Sea ice Storfjordrenna |
op_relation |
Scientific Reports Łącka M, Michalska, Pawłowska J, Szymańska N, Szczuciński W, Forwick M, Zajączkowski M. Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend. Scientific Reports. 2020;10 FRIDAID 1871817 doi:10.1038/s41598-020-72747-4 2045-2322 https://hdl.handle.net/10037/20307 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1038/s41598-020-72747-4 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
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1766369514775117824 |