(Table S1) Age determination of sediment cores from the Labrador Sea
High resolution flow speed reconstructions of two core sites located on Gardar Drift in the northeast Atlantic Basin and Orphan Knoll in the northwest Atlantic Basin reveal a long-term decrease in flow speed of Northeast Atlantic Deep Water (NEADW) after 6,500 years. Benthic foraminiferal oxygen iso...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829499 2023-05-15T17:06:03+02:00 (Table S1) Age determination of sediment cores from the Labrador Sea Hoogakker, Babette A A Chapman, Mark R McCave, I Nick Hillaire-Marcel, Claude Ellison, Christopher RW Hall, Ian R Telford, Richard J MEDIAN LATITUDE: 52.620833 * MEDIAN LONGITUDE: -39.760944 * SOUTH-BOUND LATITUDE: 50.206667 * WEST-BOUND LONGITUDE: -45.688000 * NORTH-BOUND LATITUDE: 57.447833 * EAST-BOUND LONGITUDE: -27.907833 * DATE/TIME START: 1995-06-18T00:00:00 * DATE/TIME END: 1999-08-01T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.000 m * MAXIMUM DEPTH, sediment/rock: 15.340 m 2011-02-13 text/tab-separated-values, 380 data points https://doi.pangaea.de/10.1594/PANGAEA.829499 https://doi.org/10.1594/PANGAEA.829499 en eng PANGAEA Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): (Table S1) Age determination of sediment core MD99-2251. PANGAEA, https://doi.org/10.1594/PANGAEA.829501 Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): Surface and deep ocean interactions during the Cold Climate Event 8200 years ago. Science, 312(5782), 1929-1932, https://doi.org/10.1126/science.1127213 https://doi.pangaea.de/10.1594/PANGAEA.829499 https://doi.org/10.1594/PANGAEA.829499 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Hoogakker, Babette A A; Chapman, Mark R; McCave, I Nick; Hillaire-Marcel, Claude; Ellison, Christopher RW; Hall, Ian R; Telford, Richard J (2011): Dynamics of North Atlantic Deep Water masses during the Holocene. Paleoceanography, 26(4), PA4214, https://doi.org/10.1029/2011PA002155 Age 14C AMS calibrated dated dated material dated standard deviation maximum/old minimum/young BC Box corer Calendar age CALYPSO Calypso Corer DEPTH sediment/rock Event label HU91-045-093 IMAGES I IMAGES V Laboratory code/label Labrador Sea Marion Dufresne (1995) MD101 MD114 MD952024 MD95-2024 MD99-2251 Orphan Knoll Rockall Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.829499 https://doi.org/10.1029/2011PA002155 https://doi.org/10.1594/PANGAEA.829501 https://doi.org/10.1126/science.1127213 2023-01-20T09:02:57Z High resolution flow speed reconstructions of two core sites located on Gardar Drift in the northeast Atlantic Basin and Orphan Knoll in the northwest Atlantic Basin reveal a long-term decrease in flow speed of Northeast Atlantic Deep Water (NEADW) after 6,500 years. Benthic foraminiferal oxygen isotopes of sites currently bathed in NEADW show a 0.2per mil depletion after 6,500 years, shortly after the start of the development of a carbon isotope gradient between NEADW and Norwegian Sea Deep Water. We consider these changes in near-bottom flow vigor and benthic foraminiferal isotope records to mark a significant reorganization of the Holocene deep ocean circulation, and attribute the changes to a weakening of NEADW flow during the mid to late Holocene that allowed the shoaling of Lower Deep Water and deeper eastward advection of Labrador Sea Water into the northeast Atlantic Basin. Dataset Labrador Sea Northeast Atlantic Northwest Atlantic Norwegian Sea PANGAEA - Data Publisher for Earth & Environmental Science Norwegian Sea Orphan Knoll ENVELOPE(-46.500,-46.500,50.500,50.500) ENVELOPE(-45.688000,-27.907833,57.447833,50.206667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS calibrated dated dated material dated standard deviation maximum/old minimum/young BC Box corer Calendar age CALYPSO Calypso Corer DEPTH sediment/rock Event label HU91-045-093 IMAGES I IMAGES V Laboratory code/label Labrador Sea Marion Dufresne (1995) MD101 MD114 MD952024 MD95-2024 MD99-2251 Orphan Knoll Rockall |
spellingShingle |
Age 14C AMS calibrated dated dated material dated standard deviation maximum/old minimum/young BC Box corer Calendar age CALYPSO Calypso Corer DEPTH sediment/rock Event label HU91-045-093 IMAGES I IMAGES V Laboratory code/label Labrador Sea Marion Dufresne (1995) MD101 MD114 MD952024 MD95-2024 MD99-2251 Orphan Knoll Rockall Hoogakker, Babette A A Chapman, Mark R McCave, I Nick Hillaire-Marcel, Claude Ellison, Christopher RW Hall, Ian R Telford, Richard J (Table S1) Age determination of sediment cores from the Labrador Sea |
topic_facet |
Age 14C AMS calibrated dated dated material dated standard deviation maximum/old minimum/young BC Box corer Calendar age CALYPSO Calypso Corer DEPTH sediment/rock Event label HU91-045-093 IMAGES I IMAGES V Laboratory code/label Labrador Sea Marion Dufresne (1995) MD101 MD114 MD952024 MD95-2024 MD99-2251 Orphan Knoll Rockall |
description |
High resolution flow speed reconstructions of two core sites located on Gardar Drift in the northeast Atlantic Basin and Orphan Knoll in the northwest Atlantic Basin reveal a long-term decrease in flow speed of Northeast Atlantic Deep Water (NEADW) after 6,500 years. Benthic foraminiferal oxygen isotopes of sites currently bathed in NEADW show a 0.2per mil depletion after 6,500 years, shortly after the start of the development of a carbon isotope gradient between NEADW and Norwegian Sea Deep Water. We consider these changes in near-bottom flow vigor and benthic foraminiferal isotope records to mark a significant reorganization of the Holocene deep ocean circulation, and attribute the changes to a weakening of NEADW flow during the mid to late Holocene that allowed the shoaling of Lower Deep Water and deeper eastward advection of Labrador Sea Water into the northeast Atlantic Basin. |
format |
Dataset |
author |
Hoogakker, Babette A A Chapman, Mark R McCave, I Nick Hillaire-Marcel, Claude Ellison, Christopher RW Hall, Ian R Telford, Richard J |
author_facet |
Hoogakker, Babette A A Chapman, Mark R McCave, I Nick Hillaire-Marcel, Claude Ellison, Christopher RW Hall, Ian R Telford, Richard J |
author_sort |
Hoogakker, Babette A A |
title |
(Table S1) Age determination of sediment cores from the Labrador Sea |
title_short |
(Table S1) Age determination of sediment cores from the Labrador Sea |
title_full |
(Table S1) Age determination of sediment cores from the Labrador Sea |
title_fullStr |
(Table S1) Age determination of sediment cores from the Labrador Sea |
title_full_unstemmed |
(Table S1) Age determination of sediment cores from the Labrador Sea |
title_sort |
(table s1) age determination of sediment cores from the labrador sea |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.829499 https://doi.org/10.1594/PANGAEA.829499 |
op_coverage |
MEDIAN LATITUDE: 52.620833 * MEDIAN LONGITUDE: -39.760944 * SOUTH-BOUND LATITUDE: 50.206667 * WEST-BOUND LONGITUDE: -45.688000 * NORTH-BOUND LATITUDE: 57.447833 * EAST-BOUND LONGITUDE: -27.907833 * DATE/TIME START: 1995-06-18T00:00:00 * DATE/TIME END: 1999-08-01T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.000 m * MAXIMUM DEPTH, sediment/rock: 15.340 m |
long_lat |
ENVELOPE(-46.500,-46.500,50.500,50.500) ENVELOPE(-45.688000,-27.907833,57.447833,50.206667) |
geographic |
Norwegian Sea Orphan Knoll |
geographic_facet |
Norwegian Sea Orphan Knoll |
genre |
Labrador Sea Northeast Atlantic Northwest Atlantic Norwegian Sea |
genre_facet |
Labrador Sea Northeast Atlantic Northwest Atlantic Norwegian Sea |
op_source |
Supplement to: Hoogakker, Babette A A; Chapman, Mark R; McCave, I Nick; Hillaire-Marcel, Claude; Ellison, Christopher RW; Hall, Ian R; Telford, Richard J (2011): Dynamics of North Atlantic Deep Water masses during the Holocene. Paleoceanography, 26(4), PA4214, https://doi.org/10.1029/2011PA002155 |
op_relation |
Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): (Table S1) Age determination of sediment core MD99-2251. PANGAEA, https://doi.org/10.1594/PANGAEA.829501 Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): Surface and deep ocean interactions during the Cold Climate Event 8200 years ago. Science, 312(5782), 1929-1932, https://doi.org/10.1126/science.1127213 https://doi.pangaea.de/10.1594/PANGAEA.829499 https://doi.org/10.1594/PANGAEA.829499 |
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.829499 https://doi.org/10.1029/2011PA002155 https://doi.org/10.1594/PANGAEA.829501 https://doi.org/10.1126/science.1127213 |
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