Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650
Investigating the inter-basin deep water exchange between the Pacific and Atlantic Oceans over glacial-interglacial climate cycles is important for understanding circum-Antarctic Southern Ocean circulation changes and their impact on the global Meridional Overturning Circulation. We use benthic fora...
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ftdatacite:10.1594/pangaea.833422 2023-05-15T13:35:31+02:00 Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 Ullermann, Johannes Lamy, Frank Tiedemann, Ralf 2016 application/zip https://dx.doi.org/10.1594/pangaea.833422 https://doi.pangaea.de/10.1594/PANGAEA.833422 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1002/2016pa002932 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Collection article Supplementary Collection of Datasets 2016 ftdatacite https://doi.org/10.1594/pangaea.833422 https://doi.org/10.1002/2016pa002932 2021-11-05T12:55:41Z Investigating the inter-basin deep water exchange between the Pacific and Atlantic Oceans over glacial-interglacial climate cycles is important for understanding circum-Antarctic Southern Ocean circulation changes and their impact on the global Meridional Overturning Circulation. We use benthic foraminiferal d13C records from the southern East Pacific Rise to characterize the d13C composition of Circumpolar Deep Water in the South Pacific, prior to its transit through the Drake Passage into the South Atlantic. A comparison with published South Atlantic deep water records from the northern Cape Basin suggests a continuous water mass exchange throughout the past 500 ka. Almost identical glacial-interglacial d13C variations imply a common deep water evolution in both basins suggesting persistent Circumpolar Deep Water exchange and homogenization. By contrast, deeper abyssal waters occupying the more southern Cape Basin and the southernmost South Atlantic have lower d13C values during most, but not all, stadial periods. We conclude that these values represent the influence of a more southern water mass, perhaps AABW. During many interglacials and some glacial periods, the gradient between Circumpolar Deep Water and the deeper southern Cape Basin bottom water disappears suggesting either no presence of AABW or indistinguishable d13C values of both water masses. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean Drake Passage Pacific Lester ENVELOPE(-62.583,-62.583,-64.900,-64.900) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Ullermann, Johannes Lamy, Frank Tiedemann, Ralf Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
topic_facet |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
description |
Investigating the inter-basin deep water exchange between the Pacific and Atlantic Oceans over glacial-interglacial climate cycles is important for understanding circum-Antarctic Southern Ocean circulation changes and their impact on the global Meridional Overturning Circulation. We use benthic foraminiferal d13C records from the southern East Pacific Rise to characterize the d13C composition of Circumpolar Deep Water in the South Pacific, prior to its transit through the Drake Passage into the South Atlantic. A comparison with published South Atlantic deep water records from the northern Cape Basin suggests a continuous water mass exchange throughout the past 500 ka. Almost identical glacial-interglacial d13C variations imply a common deep water evolution in both basins suggesting persistent Circumpolar Deep Water exchange and homogenization. By contrast, deeper abyssal waters occupying the more southern Cape Basin and the southernmost South Atlantic have lower d13C values during most, but not all, stadial periods. We conclude that these values represent the influence of a more southern water mass, perhaps AABW. During many interglacials and some glacial periods, the gradient between Circumpolar Deep Water and the deeper southern Cape Basin bottom water disappears suggesting either no presence of AABW or indistinguishable d13C values of both water masses. |
format |
Article in Journal/Newspaper |
author |
Ullermann, Johannes Lamy, Frank Tiedemann, Ralf |
author_facet |
Ullermann, Johannes Lamy, Frank Tiedemann, Ralf |
author_sort |
Ullermann, Johannes |
title |
Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
title_short |
Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
title_full |
Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
title_fullStr |
Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
title_full_unstemmed |
Benthic foraminifera stable isotope data from the South Pacific sediment cores PS75/059-2 and PS75/056-1, supplement to: Ullermann, Johannes; Lamy, Frank; Ninnemann, Ulysses S; Lembke-Jene, Lester; Gersonde, Rainer; Tiedemann, Ralf (2016): Pacific-Atlantic Circumpolar Deep Water coupling during the last 500 ka. Paleoceanography, 31(6), 639-650 |
title_sort |
benthic foraminifera stable isotope data from the south pacific sediment cores ps75/059-2 and ps75/056-1, supplement to: ullermann, johannes; lamy, frank; ninnemann, ulysses s; lembke-jene, lester; gersonde, rainer; tiedemann, ralf (2016): pacific-atlantic circumpolar deep water coupling during the last 500 ka. paleoceanography, 31(6), 639-650 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2016 |
url |
https://dx.doi.org/10.1594/pangaea.833422 https://doi.pangaea.de/10.1594/PANGAEA.833422 |
long_lat |
ENVELOPE(-62.583,-62.583,-64.900,-64.900) |
geographic |
Antarctic Southern Ocean Drake Passage Pacific Lester |
geographic_facet |
Antarctic Southern Ocean Drake Passage Pacific Lester |
genre |
Antarc* Antarctic Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean |
op_relation |
https://dx.doi.org/10.1002/2016pa002932 |
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.833422 https://doi.org/10.1002/2016pa002932 |
_version_ |
1766066551137501184 |