Surface effect on the isotopic fractionation between CO2 and some carbonate minerals |
| |
Authors: | M.S. Hamza |
| |
Affiliation: | 1. California Institute of Technology, Pasadena, Calif. 91109 U.S.A.;2. Lamont-Doherty Geological Observatory of Columbia University, Palisades, N.Y. 10964, U.S.A. |
| |
Abstract: | The surface effect on the isotopic fractionation between CO2 and calcite, dolomite and witherite has been studied through gas-solid exchange experiments. Oxygen isotope fractionation between surface calcite and CO2 was found to be higher by 5–6%. than the fractionation between bulk calcite and CO2.Similar studies were made using dolomite and witherite. The dolomite-calcite and witheritecalcite fractionation evaluated through the surface exchange with CO2 were found to be close to values determined by other workers under controlled conditions in the laboratory. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|