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Estuarine removal of glacial iron and implications for iron fluxes to the ocean

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Schroth, Andrew W., Crusius, John, Hoyer, Ian, and Campbell, Robert, 2014-06-06, Estuarine removal of glacial iron and implications for iron fluxes to the ocean: Geophysical Research Letters, v. 41, iss. 11.

Summary

Abstract (from http://onlinelibrary.wiley.com/doi/10.1002/2014GL060199/abstract): While recent work demonstrates that glacial meltwater provides a substantial and relatively labile flux of the micronutrient iron to oceans, the role of high-latitude estuary environments as a potential sink of glacial iron is unknown. Here we present the first quantitative description of iron removal in a meltwater-dominated estuary. We find that 85% of “dissolved” Fe is removed in the low-salinity region of the estuary along with 41% of “total dissolvable” iron associated with glacial flour. We couple these findings with hydrologic and geochemical data from Gulf of Alaska (GoA) glacierized catchments to calculate meltwater-derived fluxes of size and [...]

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journalGeophysical Research Letters
parts
typedoi
value10.1002/2014GL060199
typestartPage
value3951
typeissn
value1944-8007
typeissue
value11
typeendPage
value3958
typevolume
value41

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