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Absolute speleo-thermometry, using clumped isotope measurements to correct for kinetic isotope fractionations induced by CO_2 degassing

Daëron, M. and Guo, W. and Eiler, J. and Genty, D. and Wainer, K. and Affek, H. and Vonhof, H. and Blamart, D. (2008) Absolute speleo-thermometry, using clumped isotope measurements to correct for kinetic isotope fractionations induced by CO_2 degassing. Geochimica et Cosmochimica Acta, 72 (12). A193. ISSN 0016-7037. https://resolver.caltech.edu/CaltechAUTHORS:20130724-110127718

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Abstract

Assuming that a given speleothem precipitates near thermodynamic equilibrium, quantitative interpretation of its ^(18)O record in terms of physical parameters is generally hampered by the lack of robust methods for separating isotopic variations due to paleo-temperatures and those reflecting source water composition. Moreover, in many settings it appears likely that speleothems form out of equilibrium, due to kinetic isotopic fractionation caused by rapid CO_2 degassing, which further detracts from the reliability of paleo-environmental reconstructions.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.gca.2008.05.006DOIArticle
http://www.sciencedirect.com/science/article/pii/S0016703708002615PublisherArticle
Additional Information:© 2008 Published by Elsevier Ltd.
Issue or Number:12
Record Number:CaltechAUTHORS:20130724-110127718
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130724-110127718
Official Citation:Goldschmidt Abstracts 2008- C, Geochimica et Cosmochimica Acta, Volume 72, Issue 12, Supplement, July 2008, Pages A127-A193, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2008.05.006.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39557
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Sep 2013 19:51
Last Modified:03 Oct 2019 05:08

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