Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard
The transition from last glacial to deglacial and subsequently to modern interglacial climate conditions was accompanied by abrupt shifts in the palaeoceanographic setting in the subpolar North Atlantic. Knowledge about the role that sea ice coverage played during these rapid climate reversals is li...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833668 2024-09-15T17:54:22+00:00 Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard Müller, Juliane Stein, Ruediger LATITUDE: 78.915662 * LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-04T10:00:00 * MINIMUM DEPTH, sediment/rock: 2.11 m * MAXIMUM DEPTH, sediment/rock: 8.90 m 2014 text/tab-separated-values, 3295 data points https://doi.pangaea.de/10.1594/PANGAEA.833668 https://doi.org/10.1594/PANGAEA.833668 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.833668 https://doi.org/10.1594/PANGAEA.833668 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Müller, Juliane; Stein, Ruediger (2014): High-resolution record of late glacial and deglacial sea ice changes in Fram Strait corroborates ice-ocean interactions during abrupt climate shifts. Earth and Planetary Science Letters, 403, 446-455, https://doi.org/10.1016/j.epsl.2014.07.016 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene per unit mass total organic carbon 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene/2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane ratio 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane 24-Methylcholesta-5,22E-dien-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol AGE AWI_Paleo Calculated Carbon organic total DEPTH sediment/rock Element analyser CHN LECO Fram Strait Gas chromatography - Mass spectrometry (GC-MS) KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_712-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Phytoplankton biomarker Brassicasterol IP25 index Phytoplankton biomarker Dinosterol IP25 index Sedimentation rate dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.83366810.1016/j.epsl.2014.07.016 2024-07-24T02:31:32Z The transition from last glacial to deglacial and subsequently to modern interglacial climate conditions was accompanied by abrupt shifts in the palaeoceanographic setting in the subpolar North Atlantic. Knowledge about the role that sea ice coverage played during these rapid climate reversals is limited since most marine sediment cores from the higher latitudes provide only a coarse temporal resolution and often poorly preserved microfossils. Here we present a highly resolved reconstruction of sea ice conditions that characterised the eastern Fram Strait - a key area for water mass exchange between the Arctic Ocean and the North Atlantic - for the past 30 ka BP. This reconstruction is based on the distribution of the sea ice biomarker IP25 and phytoplankton derived biomarkers in a sediment core from the continental slope of western Svalbard. During the late glacial (30 ka to 19 ka BP), recurrent advances and retreats of sea ice characterised the study area and point to a hitherto less considered oceanic (and/or atmospheric) variability. A long-lasting perennial sea ice coverage in eastern Fram Strait persisted only at the very end of the Last Glacial Maximum (i.e. from 19.2 to 17.6 ka BP) and was abruptly reduced at the onset of Heinrich Event 1 - coincident with or possibly even inducing the collapse of the Atlantic Meridional Overturning Circulation (AMOC). Further maximum sea ice conditions prevailed during the Younger Dryas cooling event and support the assumption of an AMOC reduction due to increased formation and export of Arctic sea ice through Fram Strait. A significant retreat of sea ice and sea surface warming are observed for the Early Holocene. Dataset Arctic Ocean Fram Strait North Atlantic Phytoplankton Sea ice Svalbard PANGAEA - Data Publisher for Earth & Environmental Science 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 |
2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene per unit mass total organic carbon 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene/2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane ratio 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane 24-Methylcholesta-5,22E-dien-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol AGE AWI_Paleo Calculated Carbon organic total DEPTH sediment/rock Element analyser CHN LECO Fram Strait Gas chromatography - Mass spectrometry (GC-MS) KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_712-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Phytoplankton biomarker Brassicasterol IP25 index Phytoplankton biomarker Dinosterol IP25 index Sedimentation rate |
spellingShingle |
2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene per unit mass total organic carbon 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene/2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane ratio 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane 24-Methylcholesta-5,22E-dien-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol AGE AWI_Paleo Calculated Carbon organic total DEPTH sediment/rock Element analyser CHN LECO Fram Strait Gas chromatography - Mass spectrometry (GC-MS) KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_712-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Phytoplankton biomarker Brassicasterol IP25 index Phytoplankton biomarker Dinosterol IP25 index Sedimentation rate Müller, Juliane Stein, Ruediger Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
topic_facet |
2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene per unit mass total organic carbon 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene/2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane ratio 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane 24-Methylcholesta-5,22E-dien-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol AGE AWI_Paleo Calculated Carbon organic total DEPTH sediment/rock Element analyser CHN LECO Fram Strait Gas chromatography - Mass spectrometry (GC-MS) KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_712-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Phytoplankton biomarker Brassicasterol IP25 index Phytoplankton biomarker Dinosterol IP25 index Sedimentation rate |
description |
The transition from last glacial to deglacial and subsequently to modern interglacial climate conditions was accompanied by abrupt shifts in the palaeoceanographic setting in the subpolar North Atlantic. Knowledge about the role that sea ice coverage played during these rapid climate reversals is limited since most marine sediment cores from the higher latitudes provide only a coarse temporal resolution and often poorly preserved microfossils. Here we present a highly resolved reconstruction of sea ice conditions that characterised the eastern Fram Strait - a key area for water mass exchange between the Arctic Ocean and the North Atlantic - for the past 30 ka BP. This reconstruction is based on the distribution of the sea ice biomarker IP25 and phytoplankton derived biomarkers in a sediment core from the continental slope of western Svalbard. During the late glacial (30 ka to 19 ka BP), recurrent advances and retreats of sea ice characterised the study area and point to a hitherto less considered oceanic (and/or atmospheric) variability. A long-lasting perennial sea ice coverage in eastern Fram Strait persisted only at the very end of the Last Glacial Maximum (i.e. from 19.2 to 17.6 ka BP) and was abruptly reduced at the onset of Heinrich Event 1 - coincident with or possibly even inducing the collapse of the Atlantic Meridional Overturning Circulation (AMOC). Further maximum sea ice conditions prevailed during the Younger Dryas cooling event and support the assumption of an AMOC reduction due to increased formation and export of Arctic sea ice through Fram Strait. A significant retreat of sea ice and sea surface warming are observed for the Early Holocene. |
format |
Dataset |
author |
Müller, Juliane Stein, Ruediger |
author_facet |
Müller, Juliane Stein, Ruediger |
author_sort |
Müller, Juliane |
title |
Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
title_short |
Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
title_full |
Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
title_fullStr |
Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
title_full_unstemmed |
Late glacial and deglacial age model and biomarker analyses of sediment core MSM05/5_712-2 from the western continental slope of Svalbard |
title_sort |
late glacial and deglacial age model and biomarker analyses of sediment core msm05/5_712-2 from the western continental slope of svalbard |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833668 https://doi.org/10.1594/PANGAEA.833668 |
op_coverage |
LATITUDE: 78.915662 * LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-04T10:00:00 * MINIMUM DEPTH, sediment/rock: 2.11 m * MAXIMUM DEPTH, sediment/rock: 8.90 m |
long_lat |
ENVELOPE(6.767167,6.767167,78.915662,78.915662) |
genre |
Arctic Ocean Fram Strait North Atlantic Phytoplankton Sea ice Svalbard |
genre_facet |
Arctic Ocean Fram Strait North Atlantic Phytoplankton Sea ice Svalbard |
op_source |
Supplement to: Müller, Juliane; Stein, Ruediger (2014): High-resolution record of late glacial and deglacial sea ice changes in Fram Strait corroborates ice-ocean interactions during abrupt climate shifts. Earth and Planetary Science Letters, 403, 446-455, https://doi.org/10.1016/j.epsl.2014.07.016 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.833668 https://doi.org/10.1594/PANGAEA.833668 |
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.83366810.1016/j.epsl.2014.07.016 |
_version_ |
1810430668722667520 |