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Kinetics of CO_2(g)-H_2O(l) isotopic exchange, including ^(13)C^(18)O^(16)O

Clog, Matthieu and Eiler, John (2012) Kinetics of CO_2(g)-H_2O(l) isotopic exchange, including ^(13)C^(18)O^(16)O. Mineralogical Magazine, 76 (6). p. 1582. ISSN 0026-461X. http://resolver.caltech.edu/CaltechAUTHORS:20130807-092755321

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Abstract

The analysis of mass 47 isotopologues of CO_2 (mainly ^(13)C^(18)O^(16)O) is established as a constraint on sources and sinks of environmental CO_2, complementary to δ^(13)C and δ^(18)O constraints, and forms the basis of the carbonate ‘clumped isotope’ thermometer. This measurement is commonly reported using the Δ_(47) value — a measure of the enrichment of doubly substituted CO_2 relative to a stochastic isotopic distribution. Values of Δ_(47) approach 0 (a random distribution) at high temperatures (≥ several hundred degrees C), and increase with decreasing temperature, to ~1 ‰ at 25 °C.


Item Type:Article
Related URLs:
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http://minmag.geoscienceworld.org/content/76/6.tocPublisherIssue Table of Contents
http://www.goldschmidt2012.org/OtherConference Website
Additional Information:© 2012 by the Mineralogical Society of Great Britain and Ireland. Open Access Article. Published online 19 November 2012.
Record Number:CaltechAUTHORS:20130807-092755321
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130807-092755321
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39799
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Aug 2013 16:57
Last Modified:09 Aug 2013 16:57

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