Conservative behavior of uranium vs. salinity in Arctic sea ice and brine
The conservative behavior of uranium (U) with respect to salinity in open ocean waters is widely accepted. However, in low salinity oceanic environments, such as estuaries, its behavior seems more variable and information on its distribution over broad salinity scales still needs to be further docum...
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Language: | English |
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Online Access: | https://doi.org/10.1016/j.marchem.2011.12.005 http://hdl.handle.net/10722/210083 |
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ftunivhongkonghu:oai:hub.hku.hk:10722/210083 2023-05-15T14:50:56+02:00 Conservative behavior of uranium vs. salinity in Arctic sea ice and brine Not, Christelle Ghaleb, Bassam Hillaire-Marcel, Claude Brown, Kristina 2012 https://doi.org/10.1016/j.marchem.2011.12.005 http://hdl.handle.net/10722/210083 eng eng Marine Chemistry Marine Chemistry, 2012, v. 130-131, p. 33-39 doi:10.1016/j.marchem.2011.12.005 39 0304-4203 eid_2-s2.0-84856164031 33 http://hdl.handle.net/10722/210083 130-131 Salinity Brine Seawater Uranium Uranium disequilibrium Sea ice Arctic Article 2012 ftunivhongkonghu https://doi.org/10.1016/j.marchem.2011.12.005 2023-01-14T16:06:38Z The conservative behavior of uranium (U) with respect to salinity in open ocean waters is widely accepted. However, in low salinity oceanic environments, such as estuaries, its behavior seems more variable and information on its distribution over broad salinity scales still needs to be further documented. Sea ice formation in polar oceans constitutes a natural mechanism concentrating dissolved seawater constituents into high salinity brine through the distillation of "pure" water into sea ice. Here we present relative U-concentration data in fifteen samples from the Arctic Ocean. They include low-salinity sea ice, underlying surface seawater and sea ice brine covering a salinity range of ~0 to 135. Results suggest that U vs. salinity exhibits conservative behavior over the whole range of salinity investigated. In addition, δ 234U measurements agree well with the mean oceanic 234U/ 238U ratio, suggesting that the processes of sea ice formation and melt do not affect the oceanic relationship between the 234U and 238U. © 2011 Elsevier B.V. Link_to_subscribed_fulltext Article in Journal/Newspaper Arctic Arctic Ocean Sea ice University of Hong Kong: HKU Scholars Hub Arctic Arctic Ocean Marine Chemistry 130-131 33 39 |
institution |
Open Polar |
collection |
University of Hong Kong: HKU Scholars Hub |
op_collection_id |
ftunivhongkonghu |
language |
English |
topic |
Salinity Brine Seawater Uranium Uranium disequilibrium Sea ice Arctic |
spellingShingle |
Salinity Brine Seawater Uranium Uranium disequilibrium Sea ice Arctic Not, Christelle Ghaleb, Bassam Hillaire-Marcel, Claude Brown, Kristina Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
topic_facet |
Salinity Brine Seawater Uranium Uranium disequilibrium Sea ice Arctic |
description |
The conservative behavior of uranium (U) with respect to salinity in open ocean waters is widely accepted. However, in low salinity oceanic environments, such as estuaries, its behavior seems more variable and information on its distribution over broad salinity scales still needs to be further documented. Sea ice formation in polar oceans constitutes a natural mechanism concentrating dissolved seawater constituents into high salinity brine through the distillation of "pure" water into sea ice. Here we present relative U-concentration data in fifteen samples from the Arctic Ocean. They include low-salinity sea ice, underlying surface seawater and sea ice brine covering a salinity range of ~0 to 135. Results suggest that U vs. salinity exhibits conservative behavior over the whole range of salinity investigated. In addition, δ 234U measurements agree well with the mean oceanic 234U/ 238U ratio, suggesting that the processes of sea ice formation and melt do not affect the oceanic relationship between the 234U and 238U. © 2011 Elsevier B.V. Link_to_subscribed_fulltext |
format |
Article in Journal/Newspaper |
author |
Not, Christelle Ghaleb, Bassam Hillaire-Marcel, Claude Brown, Kristina |
author_facet |
Not, Christelle Ghaleb, Bassam Hillaire-Marcel, Claude Brown, Kristina |
author_sort |
Not, Christelle |
title |
Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
title_short |
Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
title_full |
Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
title_fullStr |
Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
title_full_unstemmed |
Conservative behavior of uranium vs. salinity in Arctic sea ice and brine |
title_sort |
conservative behavior of uranium vs. salinity in arctic sea ice and brine |
publishDate |
2012 |
url |
https://doi.org/10.1016/j.marchem.2011.12.005 http://hdl.handle.net/10722/210083 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_relation |
Marine Chemistry Marine Chemistry, 2012, v. 130-131, p. 33-39 doi:10.1016/j.marchem.2011.12.005 39 0304-4203 eid_2-s2.0-84856164031 33 http://hdl.handle.net/10722/210083 130-131 |
op_doi |
https://doi.org/10.1016/j.marchem.2011.12.005 |
container_title |
Marine Chemistry |
container_volume |
130-131 |
container_start_page |
33 |
op_container_end_page |
39 |
_version_ |
1766321991062650880 |