Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic
Sediment core M23414 from the Rockall Plateau (North Atlantic) covering the last two climatic cycles, marine isotope stages (MIS) 7 to 1, was investigated for glacial-interglacial variations in the deep-sea benthic ostracode fauna. A highly diversified ostracode fauna including 98 species was found....
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.714866 2023-05-15T15:10:43+02:00 Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic Didié, Claudia Bauch, Henning A LATITUDE: 53.536660 * LONGITUDE: -20.288330 * DATE/TIME START: 1991-08-22T00:00:00 * DATE/TIME END: 1991-08-22T00:00:00 2000-05-06 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.714866 https://doi.org/10.1594/PANGAEA.714866 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.714866 https://doi.org/10.1594/PANGAEA.714866 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Didié, Claudia; Bauch, Henning A (2000): Species composition and glacial-interglacial variations in the ostracode fauna of the northeast Atlantic during the past 200,000 years. Marine Micropaleontology, 40(1-2), 105-129, https://doi.org/10.1016/S0377-8398(00)00034-7 GEOMAR GIK23414-9 Helmholtz Centre for Ocean Research Kiel KAL Kasten corer M17/2 M23414 Meteor (1986) Northeast Atlantic Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.714866 https://doi.org/10.1016/S0377-8398(00)00034-7 2023-01-20T07:31:24Z Sediment core M23414 from the Rockall Plateau (North Atlantic) covering the last two climatic cycles, marine isotope stages (MIS) 7 to 1, was investigated for glacial-interglacial variations in the deep-sea benthic ostracode fauna. A highly diversified ostracode fauna including 98 species was found. Two climate-related assemblages were identified, associated with interglacial and peak glacial periods, respectively. The 'interglacial' group occurs during the end of MIS 7, 5 and 1 and is composed of the genera Henryhowella, Pelecocythere, Echinocythereis, Cytherella, Bradleya, Aversovalva and Eucytherura. The 'glacial' group consists of the genera Acetabulastoma (which is known as 'sea ice indicator' in the modern Arctic Ocean), Polycope, Bythoceratina, ?Rhombobythere, and some species possibly belonging to the genus Pseudocythere and is found during MIS 6, 4 and 2. These longer-term variations within the ostracode fauna seem related to the particular glacial and interglacial climate conditions that affected both deep-water production as well as primary production in the surface waters. However, a detailed comparison of ostracode abundances with the occurrence of events marked by increased ice-rafted debris reveals also much shorter-term climate related changes in the ostracode fauna. Thus, the temporal fluctuations within ostracode assemblages reflect long- and short-term alterations of the deep-sea environment that are clearly linked to climate changes. Dataset Arctic Arctic Ocean North Atlantic Northeast Atlantic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Rockall Plateau ENVELOPE(-18.833,-18.833,56.333,56.333) ENVELOPE(-20.288330,-20.288330,53.536660,53.536660) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
GEOMAR GIK23414-9 Helmholtz Centre for Ocean Research Kiel KAL Kasten corer M17/2 M23414 Meteor (1986) Northeast Atlantic |
spellingShingle |
GEOMAR GIK23414-9 Helmholtz Centre for Ocean Research Kiel KAL Kasten corer M17/2 M23414 Meteor (1986) Northeast Atlantic Didié, Claudia Bauch, Henning A Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
topic_facet |
GEOMAR GIK23414-9 Helmholtz Centre for Ocean Research Kiel KAL Kasten corer M17/2 M23414 Meteor (1986) Northeast Atlantic |
description |
Sediment core M23414 from the Rockall Plateau (North Atlantic) covering the last two climatic cycles, marine isotope stages (MIS) 7 to 1, was investigated for glacial-interglacial variations in the deep-sea benthic ostracode fauna. A highly diversified ostracode fauna including 98 species was found. Two climate-related assemblages were identified, associated with interglacial and peak glacial periods, respectively. The 'interglacial' group occurs during the end of MIS 7, 5 and 1 and is composed of the genera Henryhowella, Pelecocythere, Echinocythereis, Cytherella, Bradleya, Aversovalva and Eucytherura. The 'glacial' group consists of the genera Acetabulastoma (which is known as 'sea ice indicator' in the modern Arctic Ocean), Polycope, Bythoceratina, ?Rhombobythere, and some species possibly belonging to the genus Pseudocythere and is found during MIS 6, 4 and 2. These longer-term variations within the ostracode fauna seem related to the particular glacial and interglacial climate conditions that affected both deep-water production as well as primary production in the surface waters. However, a detailed comparison of ostracode abundances with the occurrence of events marked by increased ice-rafted debris reveals also much shorter-term climate related changes in the ostracode fauna. Thus, the temporal fluctuations within ostracode assemblages reflect long- and short-term alterations of the deep-sea environment that are clearly linked to climate changes. |
format |
Dataset |
author |
Didié, Claudia Bauch, Henning A |
author_facet |
Didié, Claudia Bauch, Henning A |
author_sort |
Didié, Claudia |
title |
Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
title_short |
Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
title_full |
Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
title_fullStr |
Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
title_full_unstemmed |
Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic |
title_sort |
ostracode fauna of sediment core gik23414-9 in the northeast atlantic |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.714866 https://doi.org/10.1594/PANGAEA.714866 |
op_coverage |
LATITUDE: 53.536660 * LONGITUDE: -20.288330 * DATE/TIME START: 1991-08-22T00:00:00 * DATE/TIME END: 1991-08-22T00:00:00 |
long_lat |
ENVELOPE(-18.833,-18.833,56.333,56.333) ENVELOPE(-20.288330,-20.288330,53.536660,53.536660) |
geographic |
Arctic Arctic Ocean Rockall Plateau |
geographic_facet |
Arctic Arctic Ocean Rockall Plateau |
genre |
Arctic Arctic Ocean North Atlantic Northeast Atlantic Sea ice |
genre_facet |
Arctic Arctic Ocean North Atlantic Northeast Atlantic Sea ice |
op_source |
Supplement to: Didié, Claudia; Bauch, Henning A (2000): Species composition and glacial-interglacial variations in the ostracode fauna of the northeast Atlantic during the past 200,000 years. Marine Micropaleontology, 40(1-2), 105-129, https://doi.org/10.1016/S0377-8398(00)00034-7 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.714866 https://doi.org/10.1594/PANGAEA.714866 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.714866 https://doi.org/10.1016/S0377-8398(00)00034-7 |
_version_ |
1766341686750871552 |