Chemical fractionation in sea ice and glacier ice
Analyses of SO^<2->_4, Na^+，Cl^-，Mg^<2+> and Ca^<2+>in ice core samples of multiyear sea ice in the Fram Strait show strong correlations between the concentrations of Mg^<2+>，Na^+，Cl^- and Ca^<2+>（r=0・99）while the correlation coefficients between these ions and SO^<2...
| Main Authors: | , , , , , |
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| Language: | English |
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日本雪氷学会
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| Subjects: | |
| Online Access: | https://kitami-it.repo.nii.ac.jp/record/7179/files/5114.pdf |
| Summary: | Analyses of SO^<2->_4, Na^+，Cl^-，Mg^<2+> and Ca^<2+>in ice core samples of multiyear sea ice in the Fram Strait show strong correlations between the concentrations of Mg^<2+>，Na^+，Cl^- and Ca^<2+>（r=0・99）while the correlation coefficients between these ions and SO^<2->_4 were less than O．9．Most samples had a deficit of sulfate relative to sea water of the same salinity. Excess sulfate was found in a few samples with low salinities．Chemical analyses of snow，ice and meltwater from temperate glaciers have demonstrated that sulfate is more efficiently washed out when meltwater penetrates through ice than are Cl^?，Mg^<2+> and Ca^<2+>．Washout therefore leads to deficit of sulfate in ice，whereas refreezing of meltwater creates an excess of sulfate relative to sea water with the same content of chloride． application/pdf journal article |
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