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| Neubeck, Anna; Hemmingsson, Christoffer; Boosman, Arjen; Rouxel, Olivier; Bohlin, Madeleine. |
| The dramatic decline in aqueous Ni concentrations in the Archean oceans during the Great Oxygenation Event is evident in declining solid phase Ni concentrations in Banded Iron Formations (BIFs) at the time. Several experiments have been performed to identify the main removal mechanisms of Ni from seawater into BIFs, whereby adsorption of Ni onto ferrihydrites has shown to be an efficient process. Ni isotopic measurements have shown limited isotopic fraction during this process, however, most experiments have been conducted in simple solutions containing varying proportions of dissolved Fe and Ni as NO3 salts, as opposed to Cl salts which are dominant in seawater. Further, Archean oceans were, before the advent of siliceous eukaryotes, likely saturated with... |
| Tipo: Text |
Palavras-chave: Stable Ni isotopes; Ferrihydrite precipitation; Co-precipitation experiment; Banded; Iron Formation; Silica. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00661/77275/78710.pdf |
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