Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ...
The radiogenic neodymium isotope ratio 143Nd/144Nd (expressed as εNd) has been applied to examine seawater elemental budgets, sedimentary provenance, oceanic water mass source and circulation, large-scale geochemical cycling, and continental crust growth rates. These applications are underpinned by...
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European Association of Geochemistry
2018
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Online Access: | https://dx.doi.org/10.17863/cam.34002 https://www.repository.cam.ac.uk/handle/1810/286695 |
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ftdatacite:10.17863/cam.34002 2024-02-04T09:56:54+01:00 Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... Hindshaw, RS Aciego, SM Piotrowski, AM Tipper, ET 2018 https://dx.doi.org/10.17863/cam.34002 https://www.repository.cam.ac.uk/handle/1810/286695 en eng European Association of Geochemistry open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 37 Earth Sciences 3703 Geochemistry Article ScholarlyArticle JournalArticle article-journal 2018 ftdatacite https://doi.org/10.17863/cam.34002 2024-01-05T13:09:14Z The radiogenic neodymium isotope ratio 143Nd/144Nd (expressed as εNd) has been applied to examine seawater elemental budgets, sedimentary provenance, oceanic water mass source and circulation, large-scale geochemical cycling, and continental crust growth rates. These applications are underpinned by the assumption that during sedimentary processing the parent/daughter (samarium/neodymium) ratio is conservative during low temperature fluid related processes. In this study, we report εNd data from two streams draining sedimentary formations in the Arctic archipelago of Svalbard. The εNd value of the dissolved load is offset from stream suspended sediment samples by up to 5.5 epsilon units. We demonstrate that dissolved load εNd is controlled by the dissolution of labile phases present in the catchment rocks which are isotopically distinct from the silicate residue and account for up to 12% Nd in the bulk sediment. This study highlights 1) the potential for incongruent release of Nd isotopes to seawater from ... Article in Journal/Newspaper Arctic Archipelago Arctic Svalbard DataCite Metadata Store (German National Library of Science and Technology) Arctic Svalbard |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
topic |
37 Earth Sciences 3703 Geochemistry |
spellingShingle |
37 Earth Sciences 3703 Geochemistry Hindshaw, RS Aciego, SM Piotrowski, AM Tipper, ET Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
topic_facet |
37 Earth Sciences 3703 Geochemistry |
description |
The radiogenic neodymium isotope ratio 143Nd/144Nd (expressed as εNd) has been applied to examine seawater elemental budgets, sedimentary provenance, oceanic water mass source and circulation, large-scale geochemical cycling, and continental crust growth rates. These applications are underpinned by the assumption that during sedimentary processing the parent/daughter (samarium/neodymium) ratio is conservative during low temperature fluid related processes. In this study, we report εNd data from two streams draining sedimentary formations in the Arctic archipelago of Svalbard. The εNd value of the dissolved load is offset from stream suspended sediment samples by up to 5.5 epsilon units. We demonstrate that dissolved load εNd is controlled by the dissolution of labile phases present in the catchment rocks which are isotopically distinct from the silicate residue and account for up to 12% Nd in the bulk sediment. This study highlights 1) the potential for incongruent release of Nd isotopes to seawater from ... |
format |
Article in Journal/Newspaper |
author |
Hindshaw, RS Aciego, SM Piotrowski, AM Tipper, ET |
author_facet |
Hindshaw, RS Aciego, SM Piotrowski, AM Tipper, ET |
author_sort |
Hindshaw, RS |
title |
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
title_short |
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
title_full |
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
title_fullStr |
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
title_full_unstemmed |
Decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
title_sort |
decoupling of dissolved and bedrock neodymium isotopes during sedimentary cycling ... |
publisher |
European Association of Geochemistry |
publishDate |
2018 |
url |
https://dx.doi.org/10.17863/cam.34002 https://www.repository.cam.ac.uk/handle/1810/286695 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Archipelago Arctic Svalbard |
genre_facet |
Arctic Archipelago Arctic Svalbard |
op_rights |
open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.34002 |
_version_ |
1789961227356602368 |