The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8
Well-preserved diatoms are present in high sedimentation rate Pleistocene cores retrieved on ocean Drilling Program (ODP) Legs 151, 152, 162 and IMAGES cruises of RN Marion Dufresne from the North Atlantic. Investigation of the stratigraphic occurrence of diatom species shows that the youngest diato...
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Language: | English |
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Elsevier Science Bv
2001
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Online Access: | https://archimer.ifremer.fr/doc/00221/33210/31708.pdf https://doi.org/10.1016/S0377-8398(00)00054-2 https://archimer.ifremer.fr/doc/00221/33210/ |
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ftarchimer:oai:archimer.ifremer.fr:33210 2023-05-15T16:03:52+02:00 The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 Koc, N Labeyrie, L Manthe, S Flower, Bp Hodell, Da Aksu, A 2001-02 application/pdf https://archimer.ifremer.fr/doc/00221/33210/31708.pdf https://doi.org/10.1016/S0377-8398(00)00054-2 https://archimer.ifremer.fr/doc/00221/33210/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00221/33210/31708.pdf doi:10.1016/S0377-8398(00)00054-2 https://archimer.ifremer.fr/doc/00221/33210/ 2001 Elsevier Science B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use Marine Micropaleontology (0377-8398) (Elsevier Science Bv), 2001-02 , Vol. 41 , N. 1-2 , P. 9-23 biostratigraphy North Atlantic diatoms Pleistocene paleoceanography isotope stratigraphy oxygen text Publication info:eu-repo/semantics/article 2001 ftarchimer https://doi.org/10.1016/S0377-8398(00)00054-2 2021-09-23T20:25:06Z Well-preserved diatoms are present in high sedimentation rate Pleistocene cores retrieved on ocean Drilling Program (ODP) Legs 151, 152, 162 and IMAGES cruises of RN Marion Dufresne from the North Atlantic. Investigation of the stratigraphic occurrence of diatom species shows that the youngest diatom event observed in the area is the last occurrence (LO) of Proboscia curvirostris (Jouse) Jordan and Priddle. P. curvirostris is a robust species that can easily be identified in the sediments, and therefore can be a practical biostratigraphic tool. We have mapped its: areal distribution, and found that it stretches from 40 degreesN to 80 degreesN in the North Atlantic. Further, we have correlated the LO P. curvirostris to the oxygen isotope records of six cores to refine the age of this biostratigraphic event. The extinction of P. curvirostris is latitudinally diachronous through Marine Isotope Stages (MIS) 9 to 8 within the North Atlantic. This is closely related to the paleoceanography of the area. P. curvirostris first disappeared within interglacial MIS 9 (324 ka) from the northern areas that are most sensitive to climatic forcing, like the East Greenland current and the sea-ice margin. It survived in mid-North Atlantic until the conditions of the MIS 8 (glaciation) became too severe (260 ka). In the North Pacific at ODP site 883 the LO P. curvirostris falls within MIS 8. The observed overlap in age between the North Atlantic and the North Pacific strongly suggests that the extinction of P. curvirostris is synchronous between these oceans. Article in Journal/Newspaper East Greenland east greenland current Greenland North Atlantic Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Greenland Pacific Marine Micropaleontology 41 1-2 9 23 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
biostratigraphy North Atlantic diatoms Pleistocene paleoceanography isotope stratigraphy oxygen |
spellingShingle |
biostratigraphy North Atlantic diatoms Pleistocene paleoceanography isotope stratigraphy oxygen Koc, N Labeyrie, L Manthe, S Flower, Bp Hodell, Da Aksu, A The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
topic_facet |
biostratigraphy North Atlantic diatoms Pleistocene paleoceanography isotope stratigraphy oxygen |
description |
Well-preserved diatoms are present in high sedimentation rate Pleistocene cores retrieved on ocean Drilling Program (ODP) Legs 151, 152, 162 and IMAGES cruises of RN Marion Dufresne from the North Atlantic. Investigation of the stratigraphic occurrence of diatom species shows that the youngest diatom event observed in the area is the last occurrence (LO) of Proboscia curvirostris (Jouse) Jordan and Priddle. P. curvirostris is a robust species that can easily be identified in the sediments, and therefore can be a practical biostratigraphic tool. We have mapped its: areal distribution, and found that it stretches from 40 degreesN to 80 degreesN in the North Atlantic. Further, we have correlated the LO P. curvirostris to the oxygen isotope records of six cores to refine the age of this biostratigraphic event. The extinction of P. curvirostris is latitudinally diachronous through Marine Isotope Stages (MIS) 9 to 8 within the North Atlantic. This is closely related to the paleoceanography of the area. P. curvirostris first disappeared within interglacial MIS 9 (324 ka) from the northern areas that are most sensitive to climatic forcing, like the East Greenland current and the sea-ice margin. It survived in mid-North Atlantic until the conditions of the MIS 8 (glaciation) became too severe (260 ka). In the North Pacific at ODP site 883 the LO P. curvirostris falls within MIS 8. The observed overlap in age between the North Atlantic and the North Pacific strongly suggests that the extinction of P. curvirostris is synchronous between these oceans. |
format |
Article in Journal/Newspaper |
author |
Koc, N Labeyrie, L Manthe, S Flower, Bp Hodell, Da Aksu, A |
author_facet |
Koc, N Labeyrie, L Manthe, S Flower, Bp Hodell, Da Aksu, A |
author_sort |
Koc, N |
title |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
title_short |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
title_full |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
title_fullStr |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
title_full_unstemmed |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8 |
title_sort |
last occurrence of proboscia curvirostris in the north atlantic marine isotope stages 9-8 |
publisher |
Elsevier Science Bv |
publishDate |
2001 |
url |
https://archimer.ifremer.fr/doc/00221/33210/31708.pdf https://doi.org/10.1016/S0377-8398(00)00054-2 https://archimer.ifremer.fr/doc/00221/33210/ |
geographic |
Greenland Pacific |
geographic_facet |
Greenland Pacific |
genre |
East Greenland east greenland current Greenland North Atlantic Sea ice |
genre_facet |
East Greenland east greenland current Greenland North Atlantic Sea ice |
op_source |
Marine Micropaleontology (0377-8398) (Elsevier Science Bv), 2001-02 , Vol. 41 , N. 1-2 , P. 9-23 |
op_relation |
https://archimer.ifremer.fr/doc/00221/33210/31708.pdf doi:10.1016/S0377-8398(00)00054-2 https://archimer.ifremer.fr/doc/00221/33210/ |
op_rights |
2001 Elsevier Science B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/S0377-8398(00)00054-2 |
container_title |
Marine Micropaleontology |
container_volume |
41 |
container_issue |
1-2 |
container_start_page |
9 |
op_container_end_page |
23 |
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1766399556554063872 |