Benthic foraminifera of late Quaternary sediments in the northern North Atlantic

Four long sediment cores from locations in the Framstrait, the Norwegian-Greenland Seas and the northern North Atlantic were analysed in a high resolution sampling mode (1 - 2 cm density) for their benthic foraminiferal content. In particular the impact of the intense climatic changes at glacial/int...

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Main Author: Nees, Stefan
Format: Other/Unknown Material
Language:English
Published: PANGAEA 1993
Subjects:
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.704509
https://doi.org/10.1594/PANGAEA.704509
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author Nees, Stefan
author_facet Nees, Stefan
author_sort Nees, Stefan
collection PANGAEA - Data Publisher for Earth & Environmental Science
description Four long sediment cores from locations in the Framstrait, the Norwegian-Greenland Seas and the northern North Atlantic were analysed in a high resolution sampling mode (1 - 2 cm density) for their benthic foraminiferal content. In particular the impact of the intense climatic changes at glacial/interglacial transitions (terminations I and II) on the benthic community have been of special interest. The faunal data were investigated by means of multivariate analysis and represented in their chronological occurence. The most prominent species of benthic foraminifera in the Norwegian-Greenland Seas are Oridorsalis umbonatus, Cibicidoides wuellerstorfi, the group of Cassidulina, Pyrgo rotalaria, Globocassidulina subglobosa and fragmented tubes of arenaceous species. The climatic signal of termination I as well as termination II is recorded in the fossil foraminiferal tests as divided transition from glacial to interglacial. The elder INDAR maximum (individuals accumulation rate = individuals/sq cm * 1.000 y; Norwegian-Greenland Seas: average 3.000 - 6.000 individuals/sq cm * 1.000 y; northern North Atlantic: average 150 individuals/sq cm * 1.000 y) is followed by a period of decreased values. The second, younger maximum reaches comparable values as the elder maximum. The interglacial INDAR are in average 700 individuals/sq cm * 1.000 y in the Norwegian-Greenland Seas and 200 individuals/sq cm * 1.000 y in average in the northern North Atlantic. The occurence of the elder INDAR maximum shows a distinct chronological transgressivity between the northern North Atlantic (12.400 ybp.) and the Framstrait (8.900 ybp.). The time shift from south to north amounts 3.500 yrs., the average expanding velocity 0,78 km per year. Within the Norwegian-Greenland Seas the average expanding velocity amounts 0,48 km per year. This chronological transgressivity is interpreted as impact of the progressive expanding of the North Atlantic and the Norwegian Current during the deglaciation. The dynamic of the faunal development is defined as ...
format Other/Unknown Material
genre Arctic
Arctic Ocean
Foraminifera*
Greenland
Greenland Sea
North Atlantic
Northeast Atlantic
Norwegian Sea
genre_facet Arctic
Arctic Ocean
Foraminifera*
Greenland
Greenland Sea
North Atlantic
Northeast Atlantic
Norwegian Sea
geographic Arctic
Arctic Ocean
Norwegian Sea
Greenland
Kol’
geographic_facet Arctic
Arctic Ocean
Norwegian Sea
Greenland
Kol’
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.704509
institution Open Polar
language English
long_lat ENVELOPE(155.946,155.946,53.834,53.834)
ENVELOPE(-20.288330,10.943333,76.846300,53.536660)
op_collection_id ftpangaea
op_coverage MEDIAN LATITUDE: 69.147929 * MEDIAN LONGITUDE: -0.880287 * SOUTH-BOUND LATITUDE: 53.536660 * WEST-BOUND LONGITUDE: -20.288330 * NORTH-BOUND LATITUDE: 76.846300 * EAST-BOUND LONGITUDE: 10.943333 * DATE/TIME START: 1986-07-11T00:00:00 * DATE/TIME END: 1991-08-22T00:00:00
op_doi https://doi.org/10.1594/PANGAEA.70450910.2312/reports-sfb313.1993.44
op_relation https://doi.pangaea.de/10.1594/PANGAEA.704509
https://doi.org/10.1594/PANGAEA.704509
op_rights CC-BY-3.0: Creative Commons Attribution 3.0 Unported
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_source Supplement to: Nees, Stefan (1993): Spätquartäre Benthosforaminiferen des Europäischen Nordmeeres: Veränderungen der Artengesellschaften und Akkumulationsraten bei Klimawechseln. Berichte aus dem Sonderforschungsbereich 313, Christian-Albrechts-Universität, Kiel, 44, 80 pp, https://doi.org/10.2312/reports-sfb313.1993.44
publishDate 1993
publisher PANGAEA
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.704509 2025-01-16T20:51:54+00:00 Benthic foraminifera of late Quaternary sediments in the northern North Atlantic Nees, Stefan MEDIAN LATITUDE: 69.147929 * MEDIAN LONGITUDE: -0.880287 * SOUTH-BOUND LATITUDE: 53.536660 * WEST-BOUND LONGITUDE: -20.288330 * NORTH-BOUND LATITUDE: 76.846300 * EAST-BOUND LONGITUDE: 10.943333 * DATE/TIME START: 1986-07-11T00:00:00 * DATE/TIME END: 1991-08-22T00:00:00 1993 application/zip, 11 datasets https://doi.pangaea.de/10.1594/PANGAEA.704509 https://doi.org/10.1594/PANGAEA.704509 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.704509 https://doi.org/10.1594/PANGAEA.704509 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Nees, Stefan (1993): Spätquartäre Benthosforaminiferen des Europäischen Nordmeeres: Veränderungen der Artengesellschaften und Akkumulationsraten bei Klimawechseln. Berichte aus dem Sonderforschungsbereich 313, Christian-Albrechts-Universität, Kiel, 44, 80 pp, https://doi.org/10.2312/reports-sfb313.1993.44 Arctic Ocean ARK-VII/1 GIK21906-2 PS17/081 GIK23068-3 GIK23256-1 GIK23414-9 Global Environmental Change: The Northern North Atlantic Greenland Sea KAL Kasten corer KOL M17/2 M2/2 M23414 M7/2 Meteor (1986) Northeast Atlantic Norwegian Sea Piston corer (Kiel type) Polarstern PS17 PS1906-2 SFB313 dataset publication series 1993 ftpangaea https://doi.org/10.1594/PANGAEA.70450910.2312/reports-sfb313.1993.44 2024-07-24T02:31:42Z Four long sediment cores from locations in the Framstrait, the Norwegian-Greenland Seas and the northern North Atlantic were analysed in a high resolution sampling mode (1 - 2 cm density) for their benthic foraminiferal content. In particular the impact of the intense climatic changes at glacial/interglacial transitions (terminations I and II) on the benthic community have been of special interest. The faunal data were investigated by means of multivariate analysis and represented in their chronological occurence. The most prominent species of benthic foraminifera in the Norwegian-Greenland Seas are Oridorsalis umbonatus, Cibicidoides wuellerstorfi, the group of Cassidulina, Pyrgo rotalaria, Globocassidulina subglobosa and fragmented tubes of arenaceous species. The climatic signal of termination I as well as termination II is recorded in the fossil foraminiferal tests as divided transition from glacial to interglacial. The elder INDAR maximum (individuals accumulation rate = individuals/sq cm * 1.000 y; Norwegian-Greenland Seas: average 3.000 - 6.000 individuals/sq cm * 1.000 y; northern North Atlantic: average 150 individuals/sq cm * 1.000 y) is followed by a period of decreased values. The second, younger maximum reaches comparable values as the elder maximum. The interglacial INDAR are in average 700 individuals/sq cm * 1.000 y in the Norwegian-Greenland Seas and 200 individuals/sq cm * 1.000 y in average in the northern North Atlantic. The occurence of the elder INDAR maximum shows a distinct chronological transgressivity between the northern North Atlantic (12.400 ybp.) and the Framstrait (8.900 ybp.). The time shift from south to north amounts 3.500 yrs., the average expanding velocity 0,78 km per year. Within the Norwegian-Greenland Seas the average expanding velocity amounts 0,48 km per year. This chronological transgressivity is interpreted as impact of the progressive expanding of the North Atlantic and the Norwegian Current during the deglaciation. The dynamic of the faunal development is defined as ... Other/Unknown Material Arctic Arctic Ocean Foraminifera* Greenland Greenland Sea North Atlantic Northeast Atlantic Norwegian Sea PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Norwegian Sea Greenland Kol’ ENVELOPE(155.946,155.946,53.834,53.834) ENVELOPE(-20.288330,10.943333,76.846300,53.536660)
spellingShingle Arctic Ocean
ARK-VII/1
GIK21906-2 PS17/081
GIK23068-3
GIK23256-1
GIK23414-9
Global Environmental Change: The Northern North Atlantic
Greenland Sea
KAL
Kasten corer
KOL
M17/2
M2/2
M23414
M7/2
Meteor (1986)
Northeast Atlantic
Norwegian Sea
Piston corer (Kiel type)
Polarstern
PS17
PS1906-2
SFB313
Nees, Stefan
Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title_full Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title_fullStr Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title_full_unstemmed Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title_short Benthic foraminifera of late Quaternary sediments in the northern North Atlantic
title_sort benthic foraminifera of late quaternary sediments in the northern north atlantic
topic Arctic Ocean
ARK-VII/1
GIK21906-2 PS17/081
GIK23068-3
GIK23256-1
GIK23414-9
Global Environmental Change: The Northern North Atlantic
Greenland Sea
KAL
Kasten corer
KOL
M17/2
M2/2
M23414
M7/2
Meteor (1986)
Northeast Atlantic
Norwegian Sea
Piston corer (Kiel type)
Polarstern
PS17
PS1906-2
SFB313
topic_facet Arctic Ocean
ARK-VII/1
GIK21906-2 PS17/081
GIK23068-3
GIK23256-1
GIK23414-9
Global Environmental Change: The Northern North Atlantic
Greenland Sea
KAL
Kasten corer
KOL
M17/2
M2/2
M23414
M7/2
Meteor (1986)
Northeast Atlantic
Norwegian Sea
Piston corer (Kiel type)
Polarstern
PS17
PS1906-2
SFB313
url https://doi.pangaea.de/10.1594/PANGAEA.704509
https://doi.org/10.1594/PANGAEA.704509