Carbon dioxide on the early earth

  title={Carbon dioxide on the early earth},
  author={J. Walker},
  journal={Origins of life and evolution of the biosphere},
  • J. Walker
  • Published 2005
  • Chemistry, Medicine
  • Origins of life and evolution of the biosphere
  • This paper uses arguments of geochemical mass balance to arrive at an estimate of the partial pressure of carbon dioxide in the terrestrial atmosphere very early in earth history. It appears that this partial pressure could have been as large as 10 bars. This large estimate depends on two key considerations. First, volatiles were driven out of the interior of the earth during the course of earth accretion or very shortly thereafter. This early degassing was a consequence of rapid accretion… CONTINUE READING
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