Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ...
To investigate changes in oxygenation at intermediate depths in the southwest Pacific between the Last Glacial Maximum (LGM) and the Holocene, redox sensitive elements uranium and rhenium were measured in 12 sediment cores located on the Campbell and Challenger plateaux offshore from New Zealand. Th...
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ftdatacite:10.7892/boris.113832 2024-09-30T14:23:18+00:00 Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... Durand, Axel Chase, Zanna Noble, Taryn Bostock, Helen Jaccard, Samuel Townsend, Ashley Bindoff, Nathaniel Neil, Helen Jacobsen, Geraldine 2018 application/pdf https://dx.doi.org/10.7892/boris.113832 https://boris.unibe.ch/113832/ en eng Elsevier info:eu-repo/semantics/restrictedAccess 550 Earth sciences & geology Text ScholarlyArticle article-journal 2018 ftdatacite https://doi.org/10.7892/boris.113832 2024-09-02T10:17:31Z To investigate changes in oxygenation at intermediate depths in the southwest Pacific between the Last Glacial Maximum (LGM) and the Holocene, redox sensitive elements uranium and rhenium were measured in 12 sediment cores located on the Campbell and Challenger plateaux offshore from New Zealand. The core sites are currently bathed by Subantarctic Mode Water (SAMW), Antarctic Intermediate Water (AAIW) and Upper Circumpolar Deep Water (UCDW). The sedimentary distributions of authigenic uranium and rhenium reveal reduced oxygen content at intermediate depths (800–1500 m) during the LGM compared to the Holocene. In contrast, data from deeper waters (≥1500 m) indicate higher oxygen content during the LGM compared to the Holocene. These data, together with variations in benthic foraminiferal δ13C, are consistent with a shallower AAIW–UCDW boundary over the Campbell Plateau during the LGM. Whilst AAIW continued to bathe the intermediate depths (≤1500 m) of the Challenger Plateau during the LGM, the data suggest ... Text Antarc* Antarctic DataCite Antarctic Pacific New Zealand Campbell Plateau ENVELOPE(171.000,171.000,-50.667,-50.667) |
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language |
English |
topic |
550 Earth sciences & geology |
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550 Earth sciences & geology Durand, Axel Chase, Zanna Noble, Taryn Bostock, Helen Jaccard, Samuel Townsend, Ashley Bindoff, Nathaniel Neil, Helen Jacobsen, Geraldine Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
topic_facet |
550 Earth sciences & geology |
description |
To investigate changes in oxygenation at intermediate depths in the southwest Pacific between the Last Glacial Maximum (LGM) and the Holocene, redox sensitive elements uranium and rhenium were measured in 12 sediment cores located on the Campbell and Challenger plateaux offshore from New Zealand. The core sites are currently bathed by Subantarctic Mode Water (SAMW), Antarctic Intermediate Water (AAIW) and Upper Circumpolar Deep Water (UCDW). The sedimentary distributions of authigenic uranium and rhenium reveal reduced oxygen content at intermediate depths (800–1500 m) during the LGM compared to the Holocene. In contrast, data from deeper waters (≥1500 m) indicate higher oxygen content during the LGM compared to the Holocene. These data, together with variations in benthic foraminiferal δ13C, are consistent with a shallower AAIW–UCDW boundary over the Campbell Plateau during the LGM. Whilst AAIW continued to bathe the intermediate depths (≤1500 m) of the Challenger Plateau during the LGM, the data suggest ... |
format |
Text |
author |
Durand, Axel Chase, Zanna Noble, Taryn Bostock, Helen Jaccard, Samuel Townsend, Ashley Bindoff, Nathaniel Neil, Helen Jacobsen, Geraldine |
author_facet |
Durand, Axel Chase, Zanna Noble, Taryn Bostock, Helen Jaccard, Samuel Townsend, Ashley Bindoff, Nathaniel Neil, Helen Jacobsen, Geraldine |
author_sort |
Durand, Axel |
title |
Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
title_short |
Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
title_full |
Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
title_fullStr |
Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
title_full_unstemmed |
Reduced oxygenation at intermediate depths of the southwest Pacific during the last glacial maximum ... |
title_sort |
reduced oxygenation at intermediate depths of the southwest pacific during the last glacial maximum ... |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://dx.doi.org/10.7892/boris.113832 https://boris.unibe.ch/113832/ |
long_lat |
ENVELOPE(171.000,171.000,-50.667,-50.667) |
geographic |
Antarctic Pacific New Zealand Campbell Plateau |
geographic_facet |
Antarctic Pacific New Zealand Campbell Plateau |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.7892/boris.113832 |
_version_ |
1811637074945638400 |