Iron isotopes in an Archean ocean analogue

  title={Iron isotopes in an Archean ocean analogue},
  author={Vincent Busigny and Noah J. Planavsky and Didier J{\'e}z{\'e}quel and Sean A Crowe and Pascale Louvat and Julien Moureau and Eric Viollier and Timothy W. Lyons},
Iron isotopes have been extensively used to trace the history of microbial metabolisms and the redox evolution of the oceans. Archean sedimentary rocks display greater variability in iron isotope ratios and more markedly negative values than those deposited in the Proterozoic and Phanerozoic. This increased variability has been linked to changes in either water column iron cycling or the extent of benthic microbial iron reduction through time. We tested these contrasting scenarios through a… CONTINUE READING
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