Photo-oxidation of hydrated Fe2+—significance for banded iron formations

  title={Photo-oxidation of hydrated Fe2+—significance for banded iron formations},
  author={P. S. Braterman and A. Cairns-smith and R. W. Sloper},
  • P. S. Braterman, A. Cairns-smith, R. W. Sloper
  • Published 1983
  • Chemistry
  • Nature
  • The Precambrian banded iron formations (BIFs) are the major iron ore sources on the Earth. They consist of extensive iron-rich and iron-poor layers within siliceous sedimentary rocks1,2. The banding has been attributed to variations in the conditions for precipitation of Fe2+ in ancient seas. The most favoured precipitating agent is oxygen3–8; this would lead in the first place to insoluble FeOOH. The variations might then arise from fluctuations in low levels of oxygen in the atmosphere8… CONTINUE READING
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