JavaScript requeired.
Geochemical Journal
Geochemical Journal An open access journal for geochemistry
Published for geochemistry community from Geochemical Society of Japan.

Carbon and oxygen isotopic equilibria in hydrothermal calcites

Brian W. Robinson
Geochemical Journal, Vol. 9, No. 1, P. 43-46, 1975


Calcite-carbon solute species-water theoretical and experimental isotope fractionation factors, plus salinity correction data, allow theoretical calcite equilibrium isotope values to be calculated as a function of the temperature of deposition when other variables are constant. In several ore deposits carbonate isotope values lie close to theoretical equilibrium curves as depositional temperatures decrease and a large reservoir of carbon in solution is implied. Models attributing isotopic variations in hydrothermal calcites as due to pH and fO2 changes assume such a reservoir, and hence can be valid. In addition, the carbon isotopic value of the carbon in solution can be calculated to determine the origin of the carbon.

All Issues

Current Issue:
Impact Factor: 0.8 (2022)
Submission to final decision: 9.6 weeks (2022)
Geochemical Society of Japan

page top