Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204
Stable oxygen and carbon isotope and sedimentological-paleontological investigations supported by accelerator mass spectrometry 14C datings were carried out on cores from north of 85°N in the eastern central Arctic Ocean. Significant changes in accumulation rates, provenance of ice-rafted debris (IR...
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1998
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ftdatacite:10.1594/pangaea.733504 2023-05-15T14:34:18+02:00 Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 Nørgaard-Pedersen, Niels Spielhagen, Robert F Thiede, Jörn Kassens, Heidemarie 1998 application/zip https://dx.doi.org/10.1594/pangaea.733504 https://doi.pangaea.de/10.1594/PANGAEA.733504 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/97pa03409 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Giant box corer ARK-VIII/3 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Quaternary Environment of the Eurasian North QUEEN Supplementary Collection of Datasets Collection article 1998 ftdatacite https://doi.org/10.1594/pangaea.733504 https://doi.org/10.1029/97pa03409 2022-02-08T16:24:46Z Stable oxygen and carbon isotope and sedimentological-paleontological investigations supported by accelerator mass spectrometry 14C datings were carried out on cores from north of 85°N in the eastern central Arctic Ocean. Significant changes in accumulation rates, provenance of ice-rafted debris (IRD), and planktic productivity over the past 80,000 years are documented. During peak glacials, i.e., oxygen isotope stages 4 and 2, the Arctic Ocean was covered by sea ice with decreased seasonal variation, limiting planktic productivity and bulk sedimentation rates. In early stage 3 and during Termination I, major deglaciations of the circum-Arctic regions caused lowered salinities and poor oxygenation of central Arctic surface waters. A meltwater spike and an associated IRD peak dated to ~14-12 14C ka can be traced over the southern Eurasian Basin of the Arctic Ocean. This event was associated with the early and rapid deglaciation of the marine-based Barents Sea Ice Sheet. A separate Termination Ib meltwater event is most conspicuous in the central Arctic and is associated with characteristic dolomitic carbonate IRD. This lithology suggests an origin of glacial ice from northern Canada and northern Greenland where lower Paleozoic platform carbonates crop extensively out. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Central Arctic Greenland Ice Sheet Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Barents Sea Canada Greenland Pedersen ENVELOPE(140.013,140.013,-66.668,-66.668) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Giant box corer ARK-VIII/3 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Quaternary Environment of the Eurasian North QUEEN |
spellingShingle |
Giant box corer ARK-VIII/3 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Quaternary Environment of the Eurasian North QUEEN Nørgaard-Pedersen, Niels Spielhagen, Robert F Thiede, Jörn Kassens, Heidemarie Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
topic_facet |
Giant box corer ARK-VIII/3 Polarstern Helmholtz Centre for Ocean Research Kiel GEOMAR Quaternary Environment of the Eurasian North QUEEN |
description |
Stable oxygen and carbon isotope and sedimentological-paleontological investigations supported by accelerator mass spectrometry 14C datings were carried out on cores from north of 85°N in the eastern central Arctic Ocean. Significant changes in accumulation rates, provenance of ice-rafted debris (IRD), and planktic productivity over the past 80,000 years are documented. During peak glacials, i.e., oxygen isotope stages 4 and 2, the Arctic Ocean was covered by sea ice with decreased seasonal variation, limiting planktic productivity and bulk sedimentation rates. In early stage 3 and during Termination I, major deglaciations of the circum-Arctic regions caused lowered salinities and poor oxygenation of central Arctic surface waters. A meltwater spike and an associated IRD peak dated to ~14-12 14C ka can be traced over the southern Eurasian Basin of the Arctic Ocean. This event was associated with the early and rapid deglaciation of the marine-based Barents Sea Ice Sheet. A separate Termination Ib meltwater event is most conspicuous in the central Arctic and is associated with characteristic dolomitic carbonate IRD. This lithology suggests an origin of glacial ice from northern Canada and northern Greenland where lower Paleozoic platform carbonates crop extensively out. |
format |
Article in Journal/Newspaper |
author |
Nørgaard-Pedersen, Niels Spielhagen, Robert F Thiede, Jörn Kassens, Heidemarie |
author_facet |
Nørgaard-Pedersen, Niels Spielhagen, Robert F Thiede, Jörn Kassens, Heidemarie |
author_sort |
Nørgaard-Pedersen, Niels |
title |
Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
title_short |
Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
title_full |
Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
title_fullStr |
Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
title_full_unstemmed |
Sedimentology and stable carbon and oxygen isotope record of the Central Arctic, supplement to: Nørgaard-Pedersen, Niels; Spielhagen, Robert F; Thiede, Jörn; Kassens, Heidemarie (1998): Central Arctic surface ocean environment during the past 80,000 years. Paleoceanography, 13(2), 193-204 |
title_sort |
sedimentology and stable carbon and oxygen isotope record of the central arctic, supplement to: nørgaard-pedersen, niels; spielhagen, robert f; thiede, jörn; kassens, heidemarie (1998): central arctic surface ocean environment during the past 80,000 years. paleoceanography, 13(2), 193-204 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1998 |
url |
https://dx.doi.org/10.1594/pangaea.733504 https://doi.pangaea.de/10.1594/PANGAEA.733504 |
long_lat |
ENVELOPE(140.013,140.013,-66.668,-66.668) |
geographic |
Arctic Arctic Ocean Barents Sea Canada Greenland Pedersen |
geographic_facet |
Arctic Arctic Ocean Barents Sea Canada Greenland Pedersen |
genre |
Arctic Arctic Ocean Barents Sea Central Arctic Greenland Ice Sheet Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Central Arctic Greenland Ice Sheet Sea ice |
op_relation |
https://dx.doi.org/10.1029/97pa03409 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.733504 https://doi.org/10.1029/97pa03409 |
_version_ |
1766307375683207168 |