Ice sheets as a missing source of silica to the polar oceans

@inproceedings{Hawkings2017IceSA,
  title={Ice sheets as a missing source of silica to the polar oceans},
  author={Jon R. Hawkings and Jemma Louise Wadham and Liane G Benning and Katharine R Hendry and Martyn Tranter and Andrew J Tedstone and Peter Nienow and R. R. Raiswell},
  booktitle={Nature communications},
  year={2017}
}
Ice sheets play a more important role in the global silicon cycle than previously appreciated. Input of dissolved and amorphous particulate silica into natural waters stimulates the growth of diatoms. Here we measure dissolved and amorphous silica in Greenland Ice Sheet meltwaters and icebergs, demonstrating the potential for high ice sheet export. Our dissolved and amorphous silica flux is 0.20 (0.06-0.79) Tmol year-1, ∼50% of the input from Arctic rivers. Amorphous silica comprises >95% of… CONTINUE READING
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The authors declare no competing financial interests

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