Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ...
Weddell Sea-derived Antarctic Bottom Water (AABW) is one of the most important deep water masses in the Southern Hemisphere occupying large portions of the deep Southern Ocean (SO) today. While substantial changes in SO-overturning circulation were previously suggested, the state of Weddell Sea AABW...
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ftdatacite:10.1594/pangaea.909084 2024-09-15T17:41:27+00:00 Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... Huang, Huang Gutjahr, Marcus Eisenhauer, Anton Kuhn, Gerhard 2019 application/zip https://dx.doi.org/10.1594/pangaea.909084 https://doi.pangaea.de/10.1594/PANGAEA.909084 en eng PANGAEA https://dx.doi.org/10.1038/s41467-020-14302-3 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Helmholtz Centre for Ocean Research Kiel GEOMAR Ocean Drilling Program ODP Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Publication Series of Datasets Collection article 2019 ftdatacite https://doi.org/10.1594/pangaea.90908410.1038/s41467-020-14302-3 2024-08-01T10:54:44Z Weddell Sea-derived Antarctic Bottom Water (AABW) is one of the most important deep water masses in the Southern Hemisphere occupying large portions of the deep Southern Ocean (SO) today. While substantial changes in SO-overturning circulation were previously suggested, the state of Weddell Sea AABW export during glacial climates remains poorly understood. Here we report seawater-derived Nd and Pb isotope records that provide evidence for the absence of Weddell Sea-derived AABW in the Atlantic sector of the SO during the last two glacial maxima. Increasing delivery of Antarctic Pb to regions outside the Weddell Sea traced SO frontal displacements during both glacial terminations. The export of Weddell Sea-derived AABW resumed late during glacial terminations, coinciding with the last major atmospheric CO~2~ rise in the transition to the Holocene and the Eemian. Our new records lend strong support for a previously inferred AABW overturning stagnation event during the peak Eemian interglacial. ... Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Weddell Sea DataCite |
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English |
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Helmholtz Centre for Ocean Research Kiel GEOMAR Ocean Drilling Program ODP Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
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Helmholtz Centre for Ocean Research Kiel GEOMAR Ocean Drilling Program ODP Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Huang, Huang Gutjahr, Marcus Eisenhauer, Anton Kuhn, Gerhard Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
topic_facet |
Helmholtz Centre for Ocean Research Kiel GEOMAR Ocean Drilling Program ODP Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
description |
Weddell Sea-derived Antarctic Bottom Water (AABW) is one of the most important deep water masses in the Southern Hemisphere occupying large portions of the deep Southern Ocean (SO) today. While substantial changes in SO-overturning circulation were previously suggested, the state of Weddell Sea AABW export during glacial climates remains poorly understood. Here we report seawater-derived Nd and Pb isotope records that provide evidence for the absence of Weddell Sea-derived AABW in the Atlantic sector of the SO during the last two glacial maxima. Increasing delivery of Antarctic Pb to regions outside the Weddell Sea traced SO frontal displacements during both glacial terminations. The export of Weddell Sea-derived AABW resumed late during glacial terminations, coinciding with the last major atmospheric CO~2~ rise in the transition to the Holocene and the Eemian. Our new records lend strong support for a previously inferred AABW overturning stagnation event during the peak Eemian interglacial. ... |
format |
Article in Journal/Newspaper |
author |
Huang, Huang Gutjahr, Marcus Eisenhauer, Anton Kuhn, Gerhard |
author_facet |
Huang, Huang Gutjahr, Marcus Eisenhauer, Anton Kuhn, Gerhard |
author_sort |
Huang, Huang |
title |
Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
title_short |
Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
title_full |
Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
title_fullStr |
Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
title_full_unstemmed |
Authigenic Pb and Nd isotope composition of sediments from the Southern Ocean ... |
title_sort |
authigenic pb and nd isotope composition of sediments from the southern ocean ... |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://dx.doi.org/10.1594/pangaea.909084 https://doi.pangaea.de/10.1594/PANGAEA.909084 |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_relation |
https://dx.doi.org/10.1038/s41467-020-14302-3 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.90908410.1038/s41467-020-14302-3 |
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1810487626739744768 |