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Article: Conservative behavior of uranium vs. salinity in Arctic sea ice and brine

TitleConservative behavior of uranium vs. salinity in Arctic sea ice and brine
Authors
KeywordsSalinity
Brine
Uranium disequilibrium
Uranium
Seawater
Arctic
Sea ice
Issue Date2012
Citation
Marine Chemistry, 2012, v. 130-131, p. 33-39 How to Cite?
AbstractThe 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..
Persistent Identifierhttp://hdl.handle.net/10722/210083
ISSN
2015 Impact Factor: 3.412
2015 SCImago Journal Rankings: 1.389

 

DC FieldValueLanguage
dc.contributor.authorNot, Christelle-
dc.contributor.authorBrown, Kristina-
dc.contributor.authorGhaleb, Bassam-
dc.contributor.authorHillaire-Marcel, Claude-
dc.date.accessioned2015-05-22T06:06:33Z-
dc.date.available2015-05-22T06:06:33Z-
dc.date.issued2012-
dc.identifier.citationMarine Chemistry, 2012, v. 130-131, p. 33-39-
dc.identifier.issn0304-4203-
dc.identifier.urihttp://hdl.handle.net/10722/210083-
dc.description.abstractThe 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..-
dc.languageeng-
dc.relation.ispartofMarine Chemistry-
dc.subjectSalinity-
dc.subjectBrine-
dc.subjectUranium disequilibrium-
dc.subjectUranium-
dc.subjectSeawater-
dc.subjectArctic-
dc.subjectSea ice-
dc.titleConservative behavior of uranium vs. salinity in Arctic sea ice and brine-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.marchem.2011.12.005-
dc.identifier.scopuseid_2-s2.0-84856164031-
dc.identifier.volume130-131-
dc.identifier.spage33-
dc.identifier.epage39-

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