Equilibrium oxygen- and hydrogen-isotope fractionation between ice and water
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BORIS DOI
Date of Publication
1991
Publication Type
Article
Contributor
Lehmann, M. | |
Siegenthaler, U. |
Subject(s)
Series
Journal of glaciology
ISSN or ISBN (if monograph)
0022-1430
Publisher
International Glaciological Society
Language
English
Publisher DOI
Description
We have performed high-precision measurements of the isotope-fractionation factors between ice and water. Ice was grown from a stirred water mass on a cooling plate. The freezing velocity was varied, keeping the stirring rate of the water constant, so that the equilibrium fractionation factors could be determined by extrapolating to zero freezing velocity. The resulting values are
∝ (18O/16O) = 1.00291 ± 0.00003 and
∝ (D/H) = 1.0212 ± 0.0004.
Non-equilibrium freezing of lake and sea ice is briefly discussed as well as the significance of our results for the deuterium excess in polar precipitation.
∝ (18O/16O) = 1.00291 ± 0.00003 and
∝ (D/H) = 1.0212 ± 0.0004.
Non-equilibrium freezing of lake and sea ice is briefly discussed as well as the significance of our results for the deuterium excess in polar precipitation.
File(s)
| File | File Type | Format | Size | License | Publisher/Copright statement | Content | |
|---|---|---|---|---|---|---|---|
| equilibrium-oxygen-and-hydrogen-isotope-fractionation-between-ice-and-water.pdf | Adobe PDF | 3.96 MB | publisher | published |