New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ...
The silicon isotope composition of silicic acid, delta Si-30(OH)(4), in the deep Arctic Ocean is anomalously heavy compared to all other deep ocean basins. To further evaluate the mechanisms leading to this condition, delta Si-30(OH)(4) was examined on US GEOTRACES section GN01 from the Bering Strai...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000505293 http://hdl.handle.net/20.500.11850/505293 |
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ftdatacite:10.3929/ethz-b-000505293 2024-09-30T14:30:01+00:00 New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... Brzezinski, Mark A. Closset, Ivia Jones, Janice L. de Souza, Gregory F. Maden, Colin 2021 application/pdf https://dx.doi.org/10.3929/ethz-b-000505293 http://hdl.handle.net/20.500.11850/505293 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 nutrients biogeochemical cycles diatoms silicon isotopes Arctic ocean Geotraces stable isotope Si30 Text Journal Article ScholarlyArticle article-journal 2021 ftdatacite https://doi.org/10.3929/ethz-b-000505293 2024-09-02T07:54:09Z The silicon isotope composition of silicic acid, delta Si-30(OH)(4), in the deep Arctic Ocean is anomalously heavy compared to all other deep ocean basins. To further evaluate the mechanisms leading to this condition, delta Si-30(OH)(4) was examined on US GEOTRACES section GN01 from the Bering Strait to the North Pole. Isotope values in the polar mixed layer showed a strong influence of the transpolar drift. Drift waters contained relatively high [Si(OH)(4)] with heavy delta Si-30(OH)(4) consistent with the high silicate of riverine source waters and strong biological Si(OH)(4) consumption on the Eurasian shelves. The maximum in silicic acid concentration, [Si(OH)(4)], within the double halocline of the Canada Basin formed a local minimum in delta Si-30(OH)(4) that extended across the Canada Basin, reflecting the high-[Si(OH)(4)] Pacific source waters and benthic inputs of Si(OH)(4) in the Chukchi Sea. delta Si-30(OH)(4) became lighter with the increase in [Si(OH)(4)] in intermediate and deep waters; ... : Frontiers in Marine Science, 8 ... Text Arctic Arctic Ocean Bering Strait canada basin Chukchi Chukchi Sea North Pole DataCite Arctic Arctic Ocean Chukchi Sea Bering Strait Canada Pacific North Pole |
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ftdatacite |
language |
English |
topic |
nutrients biogeochemical cycles diatoms silicon isotopes Arctic ocean Geotraces stable isotope Si30 |
spellingShingle |
nutrients biogeochemical cycles diatoms silicon isotopes Arctic ocean Geotraces stable isotope Si30 Brzezinski, Mark A. Closset, Ivia Jones, Janice L. de Souza, Gregory F. Maden, Colin New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
topic_facet |
nutrients biogeochemical cycles diatoms silicon isotopes Arctic ocean Geotraces stable isotope Si30 |
description |
The silicon isotope composition of silicic acid, delta Si-30(OH)(4), in the deep Arctic Ocean is anomalously heavy compared to all other deep ocean basins. To further evaluate the mechanisms leading to this condition, delta Si-30(OH)(4) was examined on US GEOTRACES section GN01 from the Bering Strait to the North Pole. Isotope values in the polar mixed layer showed a strong influence of the transpolar drift. Drift waters contained relatively high [Si(OH)(4)] with heavy delta Si-30(OH)(4) consistent with the high silicate of riverine source waters and strong biological Si(OH)(4) consumption on the Eurasian shelves. The maximum in silicic acid concentration, [Si(OH)(4)], within the double halocline of the Canada Basin formed a local minimum in delta Si-30(OH)(4) that extended across the Canada Basin, reflecting the high-[Si(OH)(4)] Pacific source waters and benthic inputs of Si(OH)(4) in the Chukchi Sea. delta Si-30(OH)(4) became lighter with the increase in [Si(OH)(4)] in intermediate and deep waters; ... : Frontiers in Marine Science, 8 ... |
format |
Text |
author |
Brzezinski, Mark A. Closset, Ivia Jones, Janice L. de Souza, Gregory F. Maden, Colin |
author_facet |
Brzezinski, Mark A. Closset, Ivia Jones, Janice L. de Souza, Gregory F. Maden, Colin |
author_sort |
Brzezinski, Mark A. |
title |
New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
title_short |
New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
title_full |
New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
title_fullStr |
New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
title_full_unstemmed |
New Constraints on the Physical and Biological Controls on the Silicon Isotopic Composition of the Arctic Ocean ... |
title_sort |
new constraints on the physical and biological controls on the silicon isotopic composition of the arctic ocean ... |
publisher |
ETH Zurich |
publishDate |
2021 |
url |
https://dx.doi.org/10.3929/ethz-b-000505293 http://hdl.handle.net/20.500.11850/505293 |
geographic |
Arctic Arctic Ocean Chukchi Sea Bering Strait Canada Pacific North Pole |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea Bering Strait Canada Pacific North Pole |
genre |
Arctic Arctic Ocean Bering Strait canada basin Chukchi Chukchi Sea North Pole |
genre_facet |
Arctic Arctic Ocean Bering Strait canada basin Chukchi Chukchi Sea North Pole |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000505293 |
_version_ |
1811635127185309696 |