Greenhouse warming by nitrous oxide andmethane in the Proterozoic

@inproceedings{Roberson2011GreenhouseWB,
  title={Greenhouse warming by nitrous oxide andmethane in the Proterozoic},
  author={A L Roberson and J Roadt and I Halevy and James F Kasting},
  year={2011}
}
An anoxic, sulfidic ocean that may have existed during the Proterozoic Eon (0.54–2.4 Ga) would have had limited tracemetal abundances because of the low solubility of metal sulfides. The lack of copper, in particular, could have had a significant impact on marine denitrification. Copper is needed for the enzyme that controls the final step of denitrification, from N2O to N2. Today, only about 5–6% of denitrification results in release of N2O. If all denitrification stopped at N2O during the… CONTINUE READING
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