Coastal permafrost was massively eroded during the Bølling-Allerød warm period
The Bølling-Allerød interstadial (14,700–12,900 years before present), during the last deglaciation, was characterized by rapid warming and sea level rise. Yet, the response of the Arctic terrestrial cryosphere during this abrupt climate change remains thus far elusive. Here we present a multi-proxy...
Published in: | Communications Earth & Environment |
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Online Access: | https://hdl.handle.net/10278/5045061 https://doi.org/10.1038/s43247-023-01013-y |
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ftuniveneziairis:oai:iris.unive.it:10278/5045061 2024-04-14T08:06:46+00:00 Coastal permafrost was massively eroded during the Bølling-Allerød warm period Nogarotto A. Noormets R. Chauhan T. Mollenhauer G. Hefter J. Grotheer H. Belt S. T. Colleoni F. Muschitiello F. Capotondi L. Pellegrini C. Tesi T. Nogarotto, A. Noormets, R. Chauhan, T. Mollenhauer, G. Hefter, J. Grotheer, H. Belt, S. T. Colleoni, F. Muschitiello, F. Capotondi, L. Pellegrini, C. Tesi, T. 2023 ELETTRONICO https://hdl.handle.net/10278/5045061 https://doi.org/10.1038/s43247-023-01013-y eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:001083541800002 volume:4 issue:1 journal:COMMUNICATIONS EARTH & ENVIRONMENT https://hdl.handle.net/10278/5045061 doi:10.1038/s43247-023-01013-y info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85173680866 info:eu-repo/semantics/openAccess Settore GEO/08 - Geochimica e Vulcanologia Settore GEO/02 - Geologia Stratigrafica e Sedimentologica info:eu-repo/semantics/article 2023 ftuniveneziairis https://doi.org/10.1038/s43247-023-01013-y 2024-03-21T18:22:27Z The Bølling-Allerød interstadial (14,700–12,900 years before present), during the last deglaciation, was characterized by rapid warming and sea level rise. Yet, the response of the Arctic terrestrial cryosphere during this abrupt climate change remains thus far elusive. Here we present a multi-proxy analysis of a sediment record from the northern Svalbard continental margin, an area strongly influenced by sea ice export from the Arctic, to elucidate sea level - permafrost erosion connections. We show that permafrost-derived material rich in biospheric carbon became the dominant source of sediments at the onset of the Bølling-Allerød, despite the lack of direct connections with permafrost deposits. Our results suggest that the abrupt temperature and sea level rise triggered massive erosion of coastal ice-rich Yedoma permafrost, possibly from Siberian and Alaskan coasts, followed by long-range sea ice transport towards the Fram Strait and the Arctic Ocean gateway. Overall, we show how coastal permafrost is susceptible to large-scale remobilization in a scenario of rapid climate variability. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Fram Strait Ice permafrost Sea ice Svalbard Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Arctic Arctic Ocean Svalbard Communications Earth & Environment 4 1 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
Settore GEO/08 - Geochimica e Vulcanologia Settore GEO/02 - Geologia Stratigrafica e Sedimentologica |
spellingShingle |
Settore GEO/08 - Geochimica e Vulcanologia Settore GEO/02 - Geologia Stratigrafica e Sedimentologica Nogarotto A. Noormets R. Chauhan T. Mollenhauer G. Hefter J. Grotheer H. Belt S. T. Colleoni F. Muschitiello F. Capotondi L. Pellegrini C. Tesi T. Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
topic_facet |
Settore GEO/08 - Geochimica e Vulcanologia Settore GEO/02 - Geologia Stratigrafica e Sedimentologica |
description |
The Bølling-Allerød interstadial (14,700–12,900 years before present), during the last deglaciation, was characterized by rapid warming and sea level rise. Yet, the response of the Arctic terrestrial cryosphere during this abrupt climate change remains thus far elusive. Here we present a multi-proxy analysis of a sediment record from the northern Svalbard continental margin, an area strongly influenced by sea ice export from the Arctic, to elucidate sea level - permafrost erosion connections. We show that permafrost-derived material rich in biospheric carbon became the dominant source of sediments at the onset of the Bølling-Allerød, despite the lack of direct connections with permafrost deposits. Our results suggest that the abrupt temperature and sea level rise triggered massive erosion of coastal ice-rich Yedoma permafrost, possibly from Siberian and Alaskan coasts, followed by long-range sea ice transport towards the Fram Strait and the Arctic Ocean gateway. Overall, we show how coastal permafrost is susceptible to large-scale remobilization in a scenario of rapid climate variability. |
author2 |
Nogarotto, A. Noormets, R. Chauhan, T. Mollenhauer, G. Hefter, J. Grotheer, H. Belt, S. T. Colleoni, F. Muschitiello, F. Capotondi, L. Pellegrini, C. Tesi, T. |
format |
Article in Journal/Newspaper |
author |
Nogarotto A. Noormets R. Chauhan T. Mollenhauer G. Hefter J. Grotheer H. Belt S. T. Colleoni F. Muschitiello F. Capotondi L. Pellegrini C. Tesi T. |
author_facet |
Nogarotto A. Noormets R. Chauhan T. Mollenhauer G. Hefter J. Grotheer H. Belt S. T. Colleoni F. Muschitiello F. Capotondi L. Pellegrini C. Tesi T. |
author_sort |
Nogarotto A. |
title |
Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
title_short |
Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
title_full |
Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
title_fullStr |
Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
title_full_unstemmed |
Coastal permafrost was massively eroded during the Bølling-Allerød warm period |
title_sort |
coastal permafrost was massively eroded during the bølling-allerød warm period |
publishDate |
2023 |
url |
https://hdl.handle.net/10278/5045061 https://doi.org/10.1038/s43247-023-01013-y |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Ocean Climate change Fram Strait Ice permafrost Sea ice Svalbard |
genre_facet |
Arctic Arctic Ocean Climate change Fram Strait Ice permafrost Sea ice Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:001083541800002 volume:4 issue:1 journal:COMMUNICATIONS EARTH & ENVIRONMENT https://hdl.handle.net/10278/5045061 doi:10.1038/s43247-023-01013-y info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85173680866 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-023-01013-y |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
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1796303937427472384 |