Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ...
Present-day low-latitude eastern and western Atlantic basins are geochemically distinct below the sill depth of the Mid-Atlantic Ridge. While Antarctic Bottom Water (AABW) circulates freely in the western Atlantic, flow into the eastern Atlantic is restricted below 4 km which results in filling the...
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ftdatacite:10.1594/pangaea.692007 2024-09-15T17:47:20+00:00 Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... Beveridge, N Elderfield, Henry Shackleton, Nicholas J 1995 application/zip https://dx.doi.org/10.1594/pangaea.692007 https://doi.pangaea.de/10.1594/PANGAEA.692007 en eng PANGAEA https://dx.doi.org/10.1029/94pa03353 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Kasten corer CD53 M25 Charles Darwin Meteor 1964 Biogeochemical Ocean Flux Study BOFS Joint Global Ocean Flux Study JGOFS article Collection Supplementary Publication Series of Datasets 1995 ftdatacite https://doi.org/10.1594/pangaea.69200710.1029/94pa03353 2024-08-01T10:59:11Z Present-day low-latitude eastern and western Atlantic basins are geochemically distinct below the sill depth of the Mid-Atlantic Ridge. While Antarctic Bottom Water (AABW) circulates freely in the western Atlantic, flow into the eastern Atlantic is restricted below 4 km which results in filling the abyssal depths of this basin with water of geochemical similarity to nutrient depleted North Atlantic Deep Water. Using carbon isotopes and Cd/Ca ratios in benthic foraminifera we reconstruct the geochemistry of these basins during the last glacial maximum. Results indicate that deep eastern and western Atlantic basins became geochemically identical during the last glacial. This was achieved by shoaling of the upper surface of AABW above the sill depth of the Mid-Atlantic Ridge, which allowed bottom waters in both basins to be filled with the same water mass. Although AABW became the dominant water mass in the deep eastern Atlantic basin during the glacial, Holocene-glacial delta13C-PO4 shifts in this basin are in ... : Supplement to: Beveridge, N; Elderfield, Henry; Shackleton, Nicholas J (1995): Deep thermohaline circulation in the low-latitude Atlantic during the last glacial. Paleoceanography, 10(3), 643-660 ... Article in Journal/Newspaper Antarc* Antarctic North Atlantic Deep Water North Atlantic DataCite |
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Open Polar |
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DataCite |
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English |
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Kasten corer CD53 M25 Charles Darwin Meteor 1964 Biogeochemical Ocean Flux Study BOFS Joint Global Ocean Flux Study JGOFS |
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Kasten corer CD53 M25 Charles Darwin Meteor 1964 Biogeochemical Ocean Flux Study BOFS Joint Global Ocean Flux Study JGOFS Beveridge, N Elderfield, Henry Shackleton, Nicholas J Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
topic_facet |
Kasten corer CD53 M25 Charles Darwin Meteor 1964 Biogeochemical Ocean Flux Study BOFS Joint Global Ocean Flux Study JGOFS |
description |
Present-day low-latitude eastern and western Atlantic basins are geochemically distinct below the sill depth of the Mid-Atlantic Ridge. While Antarctic Bottom Water (AABW) circulates freely in the western Atlantic, flow into the eastern Atlantic is restricted below 4 km which results in filling the abyssal depths of this basin with water of geochemical similarity to nutrient depleted North Atlantic Deep Water. Using carbon isotopes and Cd/Ca ratios in benthic foraminifera we reconstruct the geochemistry of these basins during the last glacial maximum. Results indicate that deep eastern and western Atlantic basins became geochemically identical during the last glacial. This was achieved by shoaling of the upper surface of AABW above the sill depth of the Mid-Atlantic Ridge, which allowed bottom waters in both basins to be filled with the same water mass. Although AABW became the dominant water mass in the deep eastern Atlantic basin during the glacial, Holocene-glacial delta13C-PO4 shifts in this basin are in ... : Supplement to: Beveridge, N; Elderfield, Henry; Shackleton, Nicholas J (1995): Deep thermohaline circulation in the low-latitude Atlantic during the last glacial. Paleoceanography, 10(3), 643-660 ... |
format |
Article in Journal/Newspaper |
author |
Beveridge, N Elderfield, Henry Shackleton, Nicholas J |
author_facet |
Beveridge, N Elderfield, Henry Shackleton, Nicholas J |
author_sort |
Beveridge, N |
title |
Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
title_short |
Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
title_full |
Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
title_fullStr |
Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
title_full_unstemmed |
Deep thermohaline Circulation in the low-latitude Atlantic during the Last Glacial ... |
title_sort |
deep thermohaline circulation in the low-latitude atlantic during the last glacial ... |
publisher |
PANGAEA |
publishDate |
1995 |
url |
https://dx.doi.org/10.1594/pangaea.692007 https://doi.pangaea.de/10.1594/PANGAEA.692007 |
genre |
Antarc* Antarctic North Atlantic Deep Water North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic Deep Water North Atlantic |
op_relation |
https://dx.doi.org/10.1029/94pa03353 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.69200710.1029/94pa03353 |
_version_ |
1810496471534927872 |