Ocean productivity before about 1.9 Gyr ago limited by phosphorus adsorption onto iron oxides

@article{Bjerrum2002OceanPB,
  title={Ocean productivity before about 1.9 Gyr ago limited by phosphorus adsorption onto iron oxides},
  author={Christian J Bjerrum and Donald E Canfield},
  journal={Nature},
  year={2002},
  volume={417},
  pages={159-162}
}
After the evolution of oxygen-producing cyanobacteria at some time before 2.7 billion years ago, oxygen production on Earth is thought to have depended on the availability of nutrients in the oceans, such as phosphorus (in the form of orthophosphate). In the modern oceans, a significant removal pathway for phosphorus occurs by way of its adsorption onto iron oxide deposits. Such deposits were thought to be more abundant in the past when, under low sulphate conditions, the formation of large… CONTINUE READING
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