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Iron's voyage from the abyss

An iron-rich plume of water from a hydrothermal vent has been found to extend more than 4,000 kilometres through the ocean. The finding has implications for the productivity of marine algae, and therefore for climate. See Letter p.200

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Figure 1: Sampling seawater.

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Correspondence to Kazuhiro Misumi.

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Misumi, K. Iron's voyage from the abyss. Nature 523, 160–161 (2015).

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