Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

Equilibrium fractionation factors for the distribution of 18O between alkaline-earth carbonates and water have been measured over the temperature range 0–500°C. The fractionation factors α can be represented by the equationsCaCO3–H2O, 1000 lnα = 2.78(106 T−2)− 3.39,SrCO3–H2O, 1000 lnα = 2.69(106 T−2)− 3.74,BaCO3–H2O, 1000 lnα = 2.57(106 T−2)− 4.73.Measurements on MnCO3, CdCO3, and PbCO3 were made at isolated temperatures. A statistical-mechanical calculation of the isotopic partition function ratios gives reasonably good agreement with experiment. Both cationic size and mass are important in isotopic fractionation, the former predominantly in its effect on the internal vibrations of the anion, the latter in its effect on the lattice vibrations.

Bibliography

O’Neil, J. R., Clayton, R. N., & Mayeda, T. K. (1969). Oxygen Isotope Fractionation in Divalent Metal Carbonates. The Journal of Chemical Physics, 51(12), 5547–5558.

Authors 3
  1. James R. O'Neil (first)
  2. Robert N. Clayton (additional)
  3. Toshiko K. Mayeda (additional)
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Dates
Type When
Created 21 years, 6 months ago (Feb. 6, 2004, 2:22 p.m.)
Deposited 1 year, 6 months ago (Feb. 9, 2024, 1:25 a.m.)
Indexed 25 minutes ago (Aug. 27, 2025, 12:29 p.m.)
Issued 55 years, 8 months ago (Dec. 15, 1969)
Published 55 years, 8 months ago (Dec. 15, 1969)
Published Print 55 years, 8 months ago (Dec. 15, 1969)
Funders 0

None

@article{O_Neil_1969, title={Oxygen Isotope Fractionation in Divalent Metal Carbonates}, volume={51}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1671982}, DOI={10.1063/1.1671982}, number={12}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={O’Neil, James R. and Clayton, Robert N. and Mayeda, Toshiko K.}, year={1969}, month=dec, pages={5547–5558} }