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Caption: Iron dynamics in oceans and their influence on productivity of oceans. This image relates to a paper that appeared in the Nov. 30, 2012, issue of Science, published by AAAS. The paper, by Bjorn von der Heyden at Stellenbosch University in Matieland, South Africa, and colleagues was titled, "Chemically and Geographically Distinct Solid-Phase Iron Pools in the Southern Ocean."
Credit: Image prepared by Laurel M. Cantor, in collaboration with the authors
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