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Stable isotopic disequilibrium in high-T metamorphic systems

Eiler, J. M. and Valley, J. W. and Baumgartner, L. P. (1993) Stable isotopic disequilibrium in high-T metamorphic systems. Mineralogical Society Bulletin, 101 . pp. 21-22. ISSN 0263-9513.

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A principal use of stable isotopes in metamorphic rocks is as thermometers, or as tests for isotopic equilibrium where metamorphic temperatures are known. Applications are often complicated when apparent isotopic temperatures are discordant and disagree with petrologic temperatures, indicating a failure of isotopic systems to record and/or preserve equilibrium, peak-T fractionations. In low-T, fluid-hosted environments such features often clearly reflect open system exchange. However, in high-T metamorphic environments a slow cooling history can be sufficient to produce such features by retrograde, closed system exchange between coexisting minerals.

Item Type:Article
Additional Information:© 1993 Mineralogical Society.
Record Number:CaltechAUTHORS:20130723-142924979
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39539
Deposited By: Tony Diaz
Deposited On:20 Sep 2013 20:02
Last Modified:03 Oct 2019 05:08

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