Articles | Volume 17, issue 1
https://doi.org/10.5194/cp-17-491-2021
https://doi.org/10.5194/cp-17-491-2021
Research article
 | 
23 Feb 2021
Research article |  | 23 Feb 2021

Atmospheric iron supply and marine productivity in the glacial North Pacific Ocean

François Burgay, Andrea Spolaor, Jacopo Gabrieli, Giulio Cozzi, Clara Turetta, Paul Vallelonga, and Carlo Barbante

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Latest update: 12 Apr 2024
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Short summary
We present the first Fe record from the NEEM ice core, which provides insight into past atmospheric Fe deposition in the Arctic. Considering the biological relevance of Fe, we questioned if the increased eolian Fe supply during glacial periods could explain the marine productivity variability in the Fe-limited subarctic Pacific Ocean. We found no overwhelming evidence that eolian Fe fertilization triggered any phytoplankton blooms, likely because other factors play a more relevant role.