Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011
We have studied Ocean Drilling Program Site 1060 on the Blake Outer Ridge, which lies beneath the Gulf Stream. We focus on marine isotope stage 3, 60-25 thousand years before present (ka). Sea surface temperatures (SSTs) inferred both from foraminiferal fauna and alkenone ratios, as well as counts o...
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ftdatacite:10.1594/pangaea.707201 2023-05-15T16:26:54+02:00 Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 Vautravers, Maryline J Shackleton, Nicholas J López-Martinez, Constancia Grimalt, Joan O 2004 application/zip https://dx.doi.org/10.1594/pangaea.707201 https://doi.pangaea.de/10.1594/PANGAEA.707201 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2003pa000966 https://dx.doi.org/10.1016/j.epsl.2007.03.003 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Leg172 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2004 ftdatacite https://doi.org/10.1594/pangaea.707201 https://doi.org/10.1029/2003pa000966 https://doi.org/10.1016/j.epsl.2007.03.003 2022-02-08T16:24:46Z We have studied Ocean Drilling Program Site 1060 on the Blake Outer Ridge, which lies beneath the Gulf Stream. We focus on marine isotope stage 3, 60-25 thousand years before present (ka). Sea surface temperatures (SSTs) inferred both from foraminiferal fauna and alkenone ratios, as well as counts of iceberg melt-out debris and benthic stable isotope analyses, enable our record to be interpreted in terms of regional hydrographic changes as well as changing thermohaline circulation (THC). The observed SST record is consistent with the air temperature record from the Greenland ice cores. However, Site 1060 exhibits important differences in detail compared with the ice core record, and when compared to other sites within the North Atlantic, significant longitudinal differences emerge. At Site 1060 in the western Atlantic, all Greenland stadials (GS) whether associated with Heinrich events (HEs) or not, show a similar small amplitude of cooling; mean faunal-based SSTaug during GS is only 1.5°C colder than during Greenland interstadials (GIS). In addition, during GS the coldest SSTs are limited to apparently brief events. This is in contrast to several eastern Atlantic sites where HE stadials exhibit coolings that are enhanced by 2°C compared to other GS and where cold conditions are not restricted to cold pulses but cover 2 ka-long intervals. Furthermore, Site 1060 SSTs remained warm right through each interstadial, in contrast to the sustained and uniform cooling trend through interstadials that is consistently observed in Greenland, indicated by measurements of delta18O in ice. Article in Journal/Newspaper Greenland Greenland ice cores ice core North Atlantic Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) Greenland Shackleton |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Leg172 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Composite Core Leg172 Joides Resolution Ocean Drilling Program ODP Vautravers, Maryline J Shackleton, Nicholas J López-Martinez, Constancia Grimalt, Joan O Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
topic_facet |
Composite Core Leg172 Joides Resolution Ocean Drilling Program ODP |
description |
We have studied Ocean Drilling Program Site 1060 on the Blake Outer Ridge, which lies beneath the Gulf Stream. We focus on marine isotope stage 3, 60-25 thousand years before present (ka). Sea surface temperatures (SSTs) inferred both from foraminiferal fauna and alkenone ratios, as well as counts of iceberg melt-out debris and benthic stable isotope analyses, enable our record to be interpreted in terms of regional hydrographic changes as well as changing thermohaline circulation (THC). The observed SST record is consistent with the air temperature record from the Greenland ice cores. However, Site 1060 exhibits important differences in detail compared with the ice core record, and when compared to other sites within the North Atlantic, significant longitudinal differences emerge. At Site 1060 in the western Atlantic, all Greenland stadials (GS) whether associated with Heinrich events (HEs) or not, show a similar small amplitude of cooling; mean faunal-based SSTaug during GS is only 1.5°C colder than during Greenland interstadials (GIS). In addition, during GS the coldest SSTs are limited to apparently brief events. This is in contrast to several eastern Atlantic sites where HE stadials exhibit coolings that are enhanced by 2°C compared to other GS and where cold conditions are not restricted to cold pulses but cover 2 ka-long intervals. Furthermore, Site 1060 SSTs remained warm right through each interstadial, in contrast to the sustained and uniform cooling trend through interstadials that is consistently observed in Greenland, indicated by measurements of delta18O in ice. |
format |
Article in Journal/Newspaper |
author |
Vautravers, Maryline J Shackleton, Nicholas J López-Martinez, Constancia Grimalt, Joan O |
author_facet |
Vautravers, Maryline J Shackleton, Nicholas J López-Martinez, Constancia Grimalt, Joan O |
author_sort |
Vautravers, Maryline J |
title |
Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
title_short |
Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
title_full |
Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
title_fullStr |
Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
title_full_unstemmed |
Sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of ODP Site 172-1060 in the West Atlantic, supplement to: Vautravers, Maryline J; Shackleton, Nicholas J; López-Martinez, Constancia; Grimalt, Joan O (2004): Gulf Stream variability during marine isotope stage 3. Paleoceanography, 19(2), PA2011 |
title_sort |
sedimentology, planktonic foraminifera distribution and stable isotope composition during marine isotope stage 3 of odp site 172-1060 in the west atlantic, supplement to: vautravers, maryline j; shackleton, nicholas j; lópez-martinez, constancia; grimalt, joan o (2004): gulf stream variability during marine isotope stage 3. paleoceanography, 19(2), pa2011 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.707201 https://doi.pangaea.de/10.1594/PANGAEA.707201 |
geographic |
Greenland Shackleton |
geographic_facet |
Greenland Shackleton |
genre |
Greenland Greenland ice cores ice core North Atlantic Planktonic foraminifera |
genre_facet |
Greenland Greenland ice cores ice core North Atlantic Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1029/2003pa000966 https://dx.doi.org/10.1016/j.epsl.2007.03.003 |
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.707201 https://doi.org/10.1029/2003pa000966 https://doi.org/10.1016/j.epsl.2007.03.003 |
_version_ |
1766015918084718592 |