Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard
Timing and structure of the Late and post-glacial development of the northern Svalbard margin, together with the initial influx of Atlantic water into the Arctic Ocean are still very poorly constrained. We investigated a sediment core (NP94-51) from a high accumulation area on the continental shelf...
Published in: | Polar Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
2002
|
Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/2148 https://doi.org/10.3402/polar.v21i2.6492 |
id |
ftjpolarres:oai:journals.openacademia.net:article/2148 |
---|---|
record_format |
openpolar |
spelling |
ftjpolarres:oai:journals.openacademia.net:article/2148 2023-05-15T15:05:40+02:00 Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard Koç, Nalân Klitgaard-Kristensen, Dorthe Hasle, Kristine Forsberg, Carl Fredrik Solheim, Anders 2002-01-12 application/pdf https://polarresearch.net/index.php/polar/article/view/2148 https://doi.org/10.3402/polar.v21i2.6492 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2148/5399 https://polarresearch.net/index.php/polar/article/view/2148 doi:10.3402/polar.v21i2.6492 Copyright (c) 2018 Polar Research Polar Research; Vol. 21 No. 2 (2002): Special issue: Proceedings of the Changes in Climate and Environment at High Latitudes Conference; 307-314 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2002 ftjpolarres https://doi.org/10.3402/polar.v21i2.6492 2021-11-11T19:12:09Z Timing and structure of the Late and post-glacial development of the northern Svalbard margin, together with the initial influx of Atlantic water into the Arctic Ocean are still very poorly constrained. We investigated a sediment core (NP94-51) from a high accumulation area on the continental shelf north of Hinlopen Strait with the purpose of resolving the timing and structure of the last deglaciation. Detailed analyses of ice-rafted detritus, benthic and planktonic foraminiferal fauna, diatom flora, grain size and radiocarbon dates are used to reconstruct the palaeoceanographic evolution of the area. Our results indicate that the disintegration of Hinlopen Strait ice and possibly the northern margin of the Svalbard Ice Sheet commenced between 13.7 and 13.9 14C Ky BP. Influx of subsurface Atlantic waters into the area (12.6 14C Ky BP) and the retreat of the sea ice cover, with the accompanying opening of the surface waters (10.8 14C Ky BP), happened at different times and both much later than the disintegration of the ice sheets. The transition into the Holocene shows a two-step warming. Article in Journal/Newspaper Arctic Arctic Ocean Foraminifera* Hinlopen Strait Ice Sheet Polar Research Sea ice Svalbard Svalbard margin Polar Research (E-Journal) Arctic Arctic Ocean Svalbard Polar Research 21 2 307 314 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
Timing and structure of the Late and post-glacial development of the northern Svalbard margin, together with the initial influx of Atlantic water into the Arctic Ocean are still very poorly constrained. We investigated a sediment core (NP94-51) from a high accumulation area on the continental shelf north of Hinlopen Strait with the purpose of resolving the timing and structure of the last deglaciation. Detailed analyses of ice-rafted detritus, benthic and planktonic foraminiferal fauna, diatom flora, grain size and radiocarbon dates are used to reconstruct the palaeoceanographic evolution of the area. Our results indicate that the disintegration of Hinlopen Strait ice and possibly the northern margin of the Svalbard Ice Sheet commenced between 13.7 and 13.9 14C Ky BP. Influx of subsurface Atlantic waters into the area (12.6 14C Ky BP) and the retreat of the sea ice cover, with the accompanying opening of the surface waters (10.8 14C Ky BP), happened at different times and both much later than the disintegration of the ice sheets. The transition into the Holocene shows a two-step warming. |
format |
Article in Journal/Newspaper |
author |
Koç, Nalân Klitgaard-Kristensen, Dorthe Hasle, Kristine Forsberg, Carl Fredrik Solheim, Anders |
spellingShingle |
Koç, Nalân Klitgaard-Kristensen, Dorthe Hasle, Kristine Forsberg, Carl Fredrik Solheim, Anders Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
author_facet |
Koç, Nalân Klitgaard-Kristensen, Dorthe Hasle, Kristine Forsberg, Carl Fredrik Solheim, Anders |
author_sort |
Koç, Nalân |
title |
Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
title_short |
Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
title_full |
Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
title_fullStr |
Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
title_full_unstemmed |
Late glacial palaeoceanography of Hinlopen Strait, northern Svalbard |
title_sort |
late glacial palaeoceanography of hinlopen strait, northern svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2002 |
url |
https://polarresearch.net/index.php/polar/article/view/2148 https://doi.org/10.3402/polar.v21i2.6492 |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Ocean Foraminifera* Hinlopen Strait Ice Sheet Polar Research Sea ice Svalbard Svalbard margin |
genre_facet |
Arctic Arctic Ocean Foraminifera* Hinlopen Strait Ice Sheet Polar Research Sea ice Svalbard Svalbard margin |
op_source |
Polar Research; Vol. 21 No. 2 (2002): Special issue: Proceedings of the Changes in Climate and Environment at High Latitudes Conference; 307-314 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2148/5399 https://polarresearch.net/index.php/polar/article/view/2148 doi:10.3402/polar.v21i2.6492 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v21i2.6492 |
container_title |
Polar Research |
container_volume |
21 |
container_issue |
2 |
container_start_page |
307 |
op_container_end_page |
314 |
_version_ |
1766337315111698432 |