Liu, Kon-Kee and Epstein, Samuel (1984) The hydrogen isotope fractionation between kaolinite and water. Chemical Geology, 46 (4). pp. 335-350. ISSN 0009-2541. doi:10.1016/0009-2541(84)90176-1. https://resolver.caltech.edu/CaltechAUTHORS:20131031-085428697
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Abstract
Hydrogen isotope fractionation factors between kaolinite and water were determined at temperatures between 200° and 352°C. Five-gram samples of kaolinite were heated in contact with 8-mg samples of water in sealed glass reaction tubes. Under these conditions the approach to equilibrium with time will be reflected primarily in the change of the δ D in the water. Also the δ D of the hydrogen in the kaolinite will be relatively constant, subject to minor corrections. About seventy sealed vessels were heated for various times at various temperatures. During four months of heating, ∼25% of kaolinite hydrogen exchanged with the water at 200°C, whereas 100% exchanged at 352°C. The α-values were estimated assuming equilibrium between exchanged kaolinite and water. The 10^3lnα-values are estimated to be −20, −15, −6 and +7 for 352°, 300°, 250° and 200°C, respectively, which are in approximate agreement with reported values previously determined at 400°C using conventional methods as well as those estimated from kaolinite in hydrothermally active systems. The curve representing the relationship between the hydrogen isotope fractionation factor for the kaolinite-water system and temperatures between 400° and 25°C is not monotonic but rather has a maximum at 200°C.
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Additional Information: | © 1984 Elsevier Science Publishers B.V. Received April 9, 1984; revised and accepted August 8, 1984. The authors wish to acknowledge financial support of N.S.F. Grant No. EAR-8313086 and technical support of Vic Nenow. We appreciate valuable discussions with Dr. Y.N. Shieh. One of the authors (K-K.L.) wishes to acknowledge the opportunities granted by the Academia Sinica (Taipei) to return to Caltech to finish this manuscript. | ||||||
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Issue or Number: | 4 | ||||||
DOI: | 10.1016/0009-2541(84)90176-1 | ||||||
Record Number: | CaltechAUTHORS:20131031-085428697 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20131031-085428697 | ||||||
Official Citation: | Kon-Kee Liu, Samuel Epstein, The hydrogen isotope fractionation between kaolinite and water, Chemical Geology, Volume 46, Issue 4, December 1984, Pages 335-350, ISSN 0009-2541, http://dx.doi.org/10.1016/0009-2541(84)90176-1. | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 42149 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 01 Nov 2013 21:44 | ||||||
Last Modified: | 10 Nov 2021 16:19 |
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