The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 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 R/V Marion Dufresne from the North Atlantic. Investigation of the stratigraphic occurrence of diatom species shows that the youngest diat...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.678543 2023-05-15T16:03:56+02:00 The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 Koç, Nalân Labeyrie, Laurent D Manthé, Sandrine Flower, Benjamin P Hodell, David A Aksu, Ali E MEDIAN LATITUDE: 56.781366 * MEDIAN LONGITUDE: -34.241898 * SOUTH-BOUND LATITUDE: 41.744500 * WEST-BOUND LONGITUDE: -47.413200 * NORTH-BOUND LATITUDE: 62.670000 * EAST-BOUND LONGITUDE: -22.075333 * DATE/TIME START: 1993-11-13T09:14:00 * DATE/TIME END: 1995-07-22T09:29:00 2001-01-22 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.678543 https://doi.org/10.1594/PANGAEA.678543 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.678543 https://doi.org/10.1594/PANGAEA.678543 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Koç, Nalân; Labeyrie, Laurent D; Manthé, Sandrine; Flower, Benjamin P; Hodell, David A; Aksu, Ali E (2001): The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8. Marine Micropaleontology, 41(1-2), 9-23, https://doi.org/10.1016/S0377-8398(00)00054-2 152-919A 162-983A CALYPSO Calypso Corer DRILL Drilling/drill rig Greenland Sea Iceland IMAGES I Joides Resolution Leg152 Leg162 Marion Dufresne (1995) MD101 MD952014 MD95-2014 MD952027 MD95-2027 Newfoundland Slope North Atlantic Ocean Ocean Drilling Program ODP Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.678543 https://doi.org/10.1016/S0377-8398(00)00054-2 2023-01-20T07:31:07Z 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 R/V 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 (Jousé) 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°N to 80°N 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. Dataset East Greenland east greenland current Greenland Greenland Sea Iceland Newfoundland North Atlantic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Greenland Pacific ENVELOPE(-47.413200,-22.075333,62.670000,41.744500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
152-919A 162-983A CALYPSO Calypso Corer DRILL Drilling/drill rig Greenland Sea Iceland IMAGES I Joides Resolution Leg152 Leg162 Marion Dufresne (1995) MD101 MD952014 MD95-2014 MD952027 MD95-2027 Newfoundland Slope North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
152-919A 162-983A CALYPSO Calypso Corer DRILL Drilling/drill rig Greenland Sea Iceland IMAGES I Joides Resolution Leg152 Leg162 Marion Dufresne (1995) MD101 MD952014 MD95-2014 MD952027 MD95-2027 Newfoundland Slope North Atlantic Ocean Ocean Drilling Program ODP Koç, Nalân Labeyrie, Laurent D Manthé, Sandrine Flower, Benjamin P Hodell, David A Aksu, Ali E The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
topic_facet |
152-919A 162-983A CALYPSO Calypso Corer DRILL Drilling/drill rig Greenland Sea Iceland IMAGES I Joides Resolution Leg152 Leg162 Marion Dufresne (1995) MD101 MD952014 MD95-2014 MD952027 MD95-2027 Newfoundland Slope North Atlantic Ocean Ocean Drilling Program ODP |
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 R/V 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 (Jousé) 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°N to 80°N 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 |
Dataset |
author |
Koç, Nalân Labeyrie, Laurent D Manthé, Sandrine Flower, Benjamin P Hodell, David A Aksu, Ali E |
author_facet |
Koç, Nalân Labeyrie, Laurent D Manthé, Sandrine Flower, Benjamin P Hodell, David A Aksu, Ali E |
author_sort |
Koç, Nalân |
title |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
title_short |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
title_full |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
title_fullStr |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
title_full_unstemmed |
The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 |
title_sort |
last occurrence of proboscia curvirostris in the north atlantic marine isotope stage 9-8 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.678543 https://doi.org/10.1594/PANGAEA.678543 |
op_coverage |
MEDIAN LATITUDE: 56.781366 * MEDIAN LONGITUDE: -34.241898 * SOUTH-BOUND LATITUDE: 41.744500 * WEST-BOUND LONGITUDE: -47.413200 * NORTH-BOUND LATITUDE: 62.670000 * EAST-BOUND LONGITUDE: -22.075333 * DATE/TIME START: 1993-11-13T09:14:00 * DATE/TIME END: 1995-07-22T09:29:00 |
long_lat |
ENVELOPE(-47.413200,-22.075333,62.670000,41.744500) |
geographic |
Greenland Pacific |
geographic_facet |
Greenland Pacific |
genre |
East Greenland east greenland current Greenland Greenland Sea Iceland Newfoundland North Atlantic Sea ice |
genre_facet |
East Greenland east greenland current Greenland Greenland Sea Iceland Newfoundland North Atlantic Sea ice |
op_source |
Supplement to: Koç, Nalân; Labeyrie, Laurent D; Manthé, Sandrine; Flower, Benjamin P; Hodell, David A; Aksu, Ali E (2001): The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8. Marine Micropaleontology, 41(1-2), 9-23, https://doi.org/10.1016/S0377-8398(00)00054-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.678543 https://doi.org/10.1594/PANGAEA.678543 |
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.678543 https://doi.org/10.1016/S0377-8398(00)00054-2 |
_version_ |
1766399626181607424 |