Biogeosciences
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Articles | Volume 11, issue 23
Articles | Volume 11, issue 23
https://doi.org/10.5194/bg-11-6623-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-11-6623-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 23
Research article
 | 
02 Dec 2014
Research article |  | 02 Dec 2014

Quantification of iron-rich volcanogenic dust emissions and deposition over the ocean from Icelandic dust sources

O. Arnalds, H. Olafsson, and P. Dagsson-Waldhauserova

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Short summary
Iceland is one of the largest dust sources on Earth. Based on two separate methods, we estimate dust emissions to range between 30 and 40 million tons annually. Ocean deposition ranges between 5.5 and 13.8 million tons. Calculated iron deposition in oceans around Iceland ranges between 0.56 to 1.4 million tons, which are distributed over wide areas. Iron is a limiting nutrient for primary production in these waters, and dust is likely to affect oceanic Fe levels around Iceland.
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Geological and biological development of volcanic islands
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