Hadean Ocean Carbonate Geochemistry

@article{Morse1998HadeanOC,
  title={Hadean Ocean Carbonate Geochemistry},
  author={John W. Morse and Fred T. Mackenzie},
  journal={Aquatic Geochemistry},
  year={1998},
  volume={4},
  pages={301-319}
}
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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References

SHOWING 1-10 OF 46 REFERENCES
Geologic history of sea water
Paleontology and biochemistry together may yield fairly definite information, eventually, about the paleochemistry of sea water and atmosphere. Several less conclusive lines of evidence now available
Carbon isotopes and the rise of atmospheric oxygen
New data for the isotopic composition of carbon in carbonate sediments deposited between 2.6 and 1.6 Ga indicate that the value of δ13C in these sediments underwent a very large positive excursion
Possible limits on the composition of the Archaean ocean
It has been suggested that the partial pressure of carbon dioxide in the terrestrial atmosphere was larger in the past than it is at present1–4. In particular, partial pressures of 100–1,000 times
Evidence in pre-2.2 Ga paleosols for the early evolution of atmospheric oxygen and terrestrial biota
TLDR
All paleosols, regardless of age, retain some characteristics of soils formed under an oxic atmosphere, such as increased Fe3+/Ti ratios from their parental rocks, according to a new approach.
A Kinetic Model for the Chemical Composition of Sea Water
  • W. Broecker
  • Environmental Science
    Quaternary Research
  • 1971
Genesis of Precambrian Iron-Formations and the Development of Atmospheric Oxygen
The hypothesis is presented that about 3.5 billion years ago oxygen was stored chiefly in carbonate rocks, silicate rocks, and water. Sediments cycled in a reducing atmosphere. Iron cycled as ferrous
...
...