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Silicon uptake and supply during a Southern Ocean iron fertilization experiment (EIFEX) tracked by Si isotopesNARA Subscribed
We studied the evolution of the isotopic composition of dissolved Si (δ 30 Si DSi ) and biogenic Si (δ 30 Si BSi ) during a diatom bloom induced by an iron fertilization experiment in a Southern Ocean (SO) eddy. Dissolved Si (DSi) consumption was clearly boosted as a result of iron addition. We estimate an apparent Si isotopic fractionation factor of 21.36% ± 0.11%, not significantly different from estimates based on in vitro...
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