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Contribution of Electroactive Humic Substances to the Iron-Binding Ligands Released During Microbial Remineralization of Sinking Particles

Whitby, Hannah; Bressac , Matthieu; Sarthou, Geraldine; Ellwood, Michael; Guieu , Cecile; Boyd, Philip W


Iron is a key micronutrient in seawater, but concentrations would be negligible without the presence of organic ligands. The processes influencing the ligand pool composition are poorly constrained, limiting our understanding of the controls on dissolved iron distributions. To address this, the release of iron and iron‐binding ligands during the microbial remineralization of sinking particles was investigated by deploying in situ particle interceptor/incubator devices at subsurface sites in the...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1029/2019GL086685
Access Rights: Open Access


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