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| Heller, Maija Iris; Lam, Phoebe J.; Moffett, James W.; Till, Claire P.; Lee, Jong-mi; Toner, Brandy M.; Marcus, Matthew A.. |
| Oxygen minimum zones (OMZs) have been proposed to be an important source of dissolved iron (Fe) into the interior ocean. However, previous studies in OMZs have shown a sharp decrease in total dissolved Fe (dFe) and/or dissolved Fe(II) (dFe(II)) concentrations at the shelf-break, despite constant temperature, salinity and continued lack of oxygen across the shelf-break. The loss of both total dFe and dFe(II) suggests a conversion of the dFe to particulate form, but studies that have coupled the reduction-oxidation (redox) speciation of both dissolved and particulate phases have not previously been done. Here we have measured the redox speciation and concentrations of both dissolved and particulate forms of Fe in samples collected during the U.S. GEOTRACES... |
| Tipo: Text |
Palavras-chave: Oxygen minimum zone; Oxygen deficient zone; OMZ; ODZ; Fe redox cycling; Synchrotron XAS. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00386/49714/50242.pdf |
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