Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2
A sediment core from the West Spitsbergen continental margin was studied to reconstruct climate and paleoceanographic variability during the last ~9 ka in the eastern Fram Strait. Our multiproxy evidence suggests that the establishment of the modern oceanographic configuration in the eastern Fram St...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.810415 2024-06-23T07:50:16+00:00 Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 Werner, Kirstin Spielhagen, Robert F Bauch, Dorothea Hass, H Christian Kandiano, Evgenia S LATITUDE: 78.915662 * LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-04T10:00:00 2013 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.810415 https://doi.org/10.1594/PANGAEA.810415 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.810415 https://doi.org/10.1594/PANGAEA.810415 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Werner, Kirstin; Spielhagen, Robert F; Bauch, Dorothea; Hass, H Christian; Kandiano, Evgenia S (2013): Atlantic Water advection versus sea-ice advances in the eastern Fram Strait during the last 9 ka: Multiproxy evidence for a two-phase Holocene. Paleoceanography, 28(2), 283-295, https://doi.org/10.1002/palo.20028 Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.81041510.1002/palo.20028 2024-06-04T23:51:55Z A sediment core from the West Spitsbergen continental margin was studied to reconstruct climate and paleoceanographic variability during the last ~9 ka in the eastern Fram Strait. Our multiproxy evidence suggests that the establishment of the modern oceanographic configuration in the eastern Fram Strait occurred stepwise, in response to the postglacial sea-level rise and the related onset of modern sea-ice production on the shallow Siberian shelves. The late Early and Mid Holocene interval (9 to 5 ka) was generally characterized by relatively unstable conditions. High abundance of the subpolar planktic foraminifer species Turborotalita quinqueloba implies strong intensity of Atlantic Water (AW) inflow with high productivity and/or high AW temperatures, resulting in a strong heat flux to the Arctic. A series of short-lived cooling events (8.2, 6.9. and 6.1 ka) occurred superimposed on the warm late Early and Mid Holocene conditions. Our proxy data imply that simultaneous to the complete postglacial flooding of Arctic shallow shelves and the initiation of modern sea-ice production, strong advance of polar waters initiated modern oceanographic conditions in the eastern Fram Strait at ~5.2 ka. The Late Holocene was marked by the dominance of the polar planktic foraminifer species Neogloboquadrina pachyderma, a significant expansion of sea ice/icebergs, and strong stratification of the water column. Although planktic foraminiferal assemblages as well as sea surface and subsurface temperatures suggest a return of slightly strengthened advection of subsurface Atlantic Water after 3 ka, a relatively stable cold-water layer prevailed at the sea surface and the study site was probably located within the seasonally fluctuating marginal ice zone during the Neoglacial period. Dataset Arctic Foraminifera* Fram Strait Iceberg* Neogloboquadrina pachyderma Sea ice Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(6.767167,6.767167,78.915662,78.915662) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
spellingShingle |
Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Werner, Kirstin Spielhagen, Robert F Bauch, Dorothea Hass, H Christian Kandiano, Evgenia S Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
topic_facet |
Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
description |
A sediment core from the West Spitsbergen continental margin was studied to reconstruct climate and paleoceanographic variability during the last ~9 ka in the eastern Fram Strait. Our multiproxy evidence suggests that the establishment of the modern oceanographic configuration in the eastern Fram Strait occurred stepwise, in response to the postglacial sea-level rise and the related onset of modern sea-ice production on the shallow Siberian shelves. The late Early and Mid Holocene interval (9 to 5 ka) was generally characterized by relatively unstable conditions. High abundance of the subpolar planktic foraminifer species Turborotalita quinqueloba implies strong intensity of Atlantic Water (AW) inflow with high productivity and/or high AW temperatures, resulting in a strong heat flux to the Arctic. A series of short-lived cooling events (8.2, 6.9. and 6.1 ka) occurred superimposed on the warm late Early and Mid Holocene conditions. Our proxy data imply that simultaneous to the complete postglacial flooding of Arctic shallow shelves and the initiation of modern sea-ice production, strong advance of polar waters initiated modern oceanographic conditions in the eastern Fram Strait at ~5.2 ka. The Late Holocene was marked by the dominance of the polar planktic foraminifer species Neogloboquadrina pachyderma, a significant expansion of sea ice/icebergs, and strong stratification of the water column. Although planktic foraminiferal assemblages as well as sea surface and subsurface temperatures suggest a return of slightly strengthened advection of subsurface Atlantic Water after 3 ka, a relatively stable cold-water layer prevailed at the sea surface and the study site was probably located within the seasonally fluctuating marginal ice zone during the Neoglacial period. |
format |
Dataset |
author |
Werner, Kirstin Spielhagen, Robert F Bauch, Dorothea Hass, H Christian Kandiano, Evgenia S |
author_facet |
Werner, Kirstin Spielhagen, Robert F Bauch, Dorothea Hass, H Christian Kandiano, Evgenia S |
author_sort |
Werner, Kirstin |
title |
Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
title_short |
Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
title_full |
Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
title_fullStr |
Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
title_full_unstemmed |
Age determination, planktic foraminifera and stable istopes of sediment core MSM05/5_712-2 |
title_sort |
age determination, planktic foraminifera and stable istopes of sediment core msm05/5_712-2 |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.810415 https://doi.org/10.1594/PANGAEA.810415 |
op_coverage |
LATITUDE: 78.915662 * LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-04T10:00:00 |
long_lat |
ENVELOPE(6.767167,6.767167,78.915662,78.915662) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* Fram Strait Iceberg* Neogloboquadrina pachyderma Sea ice Spitsbergen |
genre_facet |
Arctic Foraminifera* Fram Strait Iceberg* Neogloboquadrina pachyderma Sea ice Spitsbergen |
op_source |
Supplement to: Werner, Kirstin; Spielhagen, Robert F; Bauch, Dorothea; Hass, H Christian; Kandiano, Evgenia S (2013): Atlantic Water advection versus sea-ice advances in the eastern Fram Strait during the last 9 ka: Multiproxy evidence for a two-phase Holocene. Paleoceanography, 28(2), 283-295, https://doi.org/10.1002/palo.20028 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.810415 https://doi.org/10.1594/PANGAEA.810415 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.81041510.1002/palo.20028 |
_version_ |
1802641132648136704 |