Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ...
Palaeoceanographic studies based on geochemical proxies allow the reconstruction of ocean conditions under different climate regimes, which aids our understanding of how the climate system may respond to current anthropogenic disturbances. However, gaps remain in our knowledge of the biogeochemical...
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University of Tasmania
2024
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ftdatacite:10.25959/25413793 2024-06-09T07:39:48+00:00 Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... Creac'h, Layla 2024 https://dx.doi.org/10.25959/25413793 https://figshare.utas.edu.au/articles/thesis/Evaluation_and_application_of_palaeoceanographic_proxies_at_the_East_Antarctic_margin/25413793 unknown University of Tasmania In Copyright http://rightsstatements.org/vocab/InC/1.0/ Thesis Text ScholarlyArticle article-journal 2024 ftdatacite https://doi.org/10.25959/25413793 2024-05-13T11:57:02Z Palaeoceanographic studies based on geochemical proxies allow the reconstruction of ocean conditions under different climate regimes, which aids our understanding of how the climate system may respond to current anthropogenic disturbances. However, gaps remain in our knowledge of the biogeochemical cycles of some paleo-proxies in the marine environment, especially at geochemically complex interfaces such as ice-ocean margins. The aim of this thesis is to assess the reliability of several proxies of past ocean circulation and productivity in a region particularly sensitive to climate change: Wilkes Land margin. To do this, new geochemical datasets were generated through measurements of trace metal and isotope concentrations in six sediment cores and seawater samples collected from the East Antarctic margin. This project firstly assessed the ability of neodymium isotopes (εNd) to track past bottom water mass circulation at the East Antarctic margin ( Chapter 2 ). The authigenic ε Nd signal leached from bulk ... Thesis Antarc* Antarctic Wilkes Land DataCite Metadata Store (German National Library of Science and Technology) Antarctic Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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description |
Palaeoceanographic studies based on geochemical proxies allow the reconstruction of ocean conditions under different climate regimes, which aids our understanding of how the climate system may respond to current anthropogenic disturbances. However, gaps remain in our knowledge of the biogeochemical cycles of some paleo-proxies in the marine environment, especially at geochemically complex interfaces such as ice-ocean margins. The aim of this thesis is to assess the reliability of several proxies of past ocean circulation and productivity in a region particularly sensitive to climate change: Wilkes Land margin. To do this, new geochemical datasets were generated through measurements of trace metal and isotope concentrations in six sediment cores and seawater samples collected from the East Antarctic margin. This project firstly assessed the ability of neodymium isotopes (εNd) to track past bottom water mass circulation at the East Antarctic margin ( Chapter 2 ). The authigenic ε Nd signal leached from bulk ... |
format |
Thesis |
author |
Creac'h, Layla |
spellingShingle |
Creac'h, Layla Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
author_facet |
Creac'h, Layla |
author_sort |
Creac'h, Layla |
title |
Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
title_short |
Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
title_full |
Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
title_fullStr |
Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
title_full_unstemmed |
Evaluation and application of palaeoceanographic proxies at the East Antarctic margin ... |
title_sort |
evaluation and application of palaeoceanographic proxies at the east antarctic margin ... |
publisher |
University of Tasmania |
publishDate |
2024 |
url |
https://dx.doi.org/10.25959/25413793 https://figshare.utas.edu.au/articles/thesis/Evaluation_and_application_of_palaeoceanographic_proxies_at_the_East_Antarctic_margin/25413793 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic Wilkes Land |
geographic_facet |
Antarctic Wilkes Land |
genre |
Antarc* Antarctic Wilkes Land |
genre_facet |
Antarc* Antarctic Wilkes Land |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.25959/25413793 |
_version_ |
1801382168639832064 |