Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene
International audience Nordaustlandet is located in the northeastern part of the Svalbard archipelago, within the northernmost reach of the West Spitsbergen Current. This current transports Atlantic water to the Arctic Ocean along the western and northern Svalbard margins. This region is well-suited...
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ftinsu:oai:HAL:hal-04281943v1 2023-12-10T09:45:26+01:00 Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene Peral, Marion Austin, William E. N. Noormets, Riko Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2022-01-03 https://hal.science/hal-04281943 https://doi.org/10.1002/jqs.3374 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.3374 hal-04281943 https://hal.science/hal-04281943 doi:10.1002/jqs.3374 ISSN: 0267-8179 EISSN: 1099-1417 Journal of Quaternary Science https://hal.science/hal-04281943 Journal of Quaternary Science, 2022, 37 (1), pp.86-99. ⟨10.1002/jqs.3374⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftinsu https://doi.org/10.1002/jqs.3374 2023-11-15T17:24:53Z International audience Nordaustlandet is located in the northeastern part of the Svalbard archipelago, within the northernmost reach of the West Spitsbergen Current. This current transports Atlantic water to the Arctic Ocean along the western and northern Svalbard margins. This region is well-suited for reconstructing the history of changing Atlantic water inflow to the Arctic Ocean. We studied the marine sediment core HH12-04-GC from Rijpfjorden. Benthic foraminiferal assemblages and sedimentological data are combined to reconstruct the palaeoenvironment of the fjord from the end of the last local deglaciation to the late Holocene. The local deglaciation, between 11.3 and 10.6 cal ka bp, was dominated by active glacier calving processes, associated with a strong inflow of Atlantic water. This led to the establishment of glaciomarine conditions. The Holocene was initially characterised by a relatively stable and warm environment associated with a strong contribution of Atlantic water. Glaciomarine influence progressively decreases after 9.7 cal ka bp and the Atlantic water contribution increases. The late Holocene displayed a similar environment to today, with the influence of glaciomarine conditions and limited Atlantic water inflow. These results confirm that Atlantic water inflows made a continuous contribution to northern Nordaustlandet throughout the postglacial period. Article in Journal/Newspaper Arctic Arctic Ocean Foraminifera* glacier Nordaustlandet Rijpfjord* Svalbard Spitsbergen Institut national des sciences de l'Univers: HAL-INSU Arctic Arctic Ocean Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) Rijpfjorden ENVELOPE(22.188,22.188,80.165,80.165) Svalbard Svalbard Archipelago Journal of Quaternary Science 37 1 86 99 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Peral, Marion Austin, William E. N. Noormets, Riko Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Nordaustlandet is located in the northeastern part of the Svalbard archipelago, within the northernmost reach of the West Spitsbergen Current. This current transports Atlantic water to the Arctic Ocean along the western and northern Svalbard margins. This region is well-suited for reconstructing the history of changing Atlantic water inflow to the Arctic Ocean. We studied the marine sediment core HH12-04-GC from Rijpfjorden. Benthic foraminiferal assemblages and sedimentological data are combined to reconstruct the palaeoenvironment of the fjord from the end of the last local deglaciation to the late Holocene. The local deglaciation, between 11.3 and 10.6 cal ka bp, was dominated by active glacier calving processes, associated with a strong inflow of Atlantic water. This led to the establishment of glaciomarine conditions. The Holocene was initially characterised by a relatively stable and warm environment associated with a strong contribution of Atlantic water. Glaciomarine influence progressively decreases after 9.7 cal ka bp and the Atlantic water contribution increases. The late Holocene displayed a similar environment to today, with the influence of glaciomarine conditions and limited Atlantic water inflow. These results confirm that Atlantic water inflows made a continuous contribution to northern Nordaustlandet throughout the postglacial period. |
author2 |
Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Peral, Marion Austin, William E. N. Noormets, Riko |
author_facet |
Peral, Marion Austin, William E. N. Noormets, Riko |
author_sort |
Peral, Marion |
title |
Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
title_short |
Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
title_full |
Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
title_fullStr |
Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
title_full_unstemmed |
Identification of Atlantic water inflow on the north Svalbard shelf during the Holocene |
title_sort |
identification of atlantic water inflow on the north svalbard shelf during the holocene |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-04281943 https://doi.org/10.1002/jqs.3374 |
long_lat |
ENVELOPE(22.400,22.400,79.800,79.800) ENVELOPE(22.188,22.188,80.165,80.165) |
geographic |
Arctic Arctic Ocean Nordaustlandet Rijpfjorden Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Arctic Ocean Nordaustlandet Rijpfjorden Svalbard Svalbard Archipelago |
genre |
Arctic Arctic Ocean Foraminifera* glacier Nordaustlandet Rijpfjord* Svalbard Spitsbergen |
genre_facet |
Arctic Arctic Ocean Foraminifera* glacier Nordaustlandet Rijpfjord* Svalbard Spitsbergen |
op_source |
ISSN: 0267-8179 EISSN: 1099-1417 Journal of Quaternary Science https://hal.science/hal-04281943 Journal of Quaternary Science, 2022, 37 (1), pp.86-99. ⟨10.1002/jqs.3374⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.3374 hal-04281943 https://hal.science/hal-04281943 doi:10.1002/jqs.3374 |
op_doi |
https://doi.org/10.1002/jqs.3374 |
container_title |
Journal of Quaternary Science |
container_volume |
37 |
container_issue |
1 |
container_start_page |
86 |
op_container_end_page |
99 |
_version_ |
1784888689565892608 |