Fig. 4: Schematic figure of benthic iron cycling. | Nature Communications

Fig. 4: Schematic figure of benthic iron cycling.

From: Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard

Fig. 4

Illustration of the production of ascorbate-extractable Fe (FeA) and microbially extractable Fe (FeM), which is labile and potentially bioavailable Fe, at the oxic-anoxic interface in fjord sediments. These sediments are unique to other marine sediments, as glacial input provides huge quantities of Fe(III) and Fe(II) bearing minerals to the sediment surface.

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