Hadean Ocean Carbonate Geochemistry

  title={Hadean Ocean Carbonate Geochemistry},
  author={John W. Morse and Fred T. Mackenzie},
  journal={Aquatic Geochemistry},
Relatively soon (∼0.2 Ga) after the Earthformed, it is likely that major oceans appeared in ahot (∼100°C) reducing environment where carbondioxide was probably the dominant atmospheric gas,with PCO2, values reaching perhaps in excess of 10atm. During the Hadean Eon between 4.3 and 3.8 Ga BP,major changes in the concentration of atmosphericCO2 and associated temperature changes had aprofound influence on the carbonate geochemistry ofthe Hadean Ocean. Although no rocks are known to havesurvived… 
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