A new model for Proterozoic ocean chemistry.

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    • Abstract:
      Presents research which proposed that anoxic bottom waters for the Earth's oceans persisted until after the deposition of banded iron formations ceased around 1.8 billion years ago. Evidence for the oxidation of the Earth's surface; What drove the oxidation event; Previous thought about the precipitation of banded iron formations; Idea that sulphide and not oxygen was the cause of iron removal from deep ocean water; Benefits of new model.