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Experimental CO (sub 2) incorporation into Mg-cordierite; nonlinear behaviour of the system

Nicole Le Breton and Werner Schreyer
Experimental CO (sub 2) incorporation into Mg-cordierite; nonlinear behaviour of the system
European Journal of Mineralogy (June 1993) 5 (3): 427-438

Abstract

High-P experiments to introduce CO (sub 2) molecules into the structural channels of a largely Al,Si-ordered synthetic Mg- cordierite are reported. The products were examined by XRD and analysed for CO (sub 2) using a coulometric method. The c cell parameter of Mg-cordierite increases linearly with the CO (sub 2) content and is suitable for characterizing CO (sub 2) -bearing cordierites, whereas the a parameter and the distortion index DELTA are too sensitive to the Al,Si-ordering state of cordierite to be used for this purpose. For any P-T-t condition the cordierite CO (sub 2) content increases with the initial CO (sub 2) content of the capsule; for a fixed P-T condition and a specific total CO (sub 2) content in the capsule the CO (sub 2) occupancy of the channels oscillates as a function of time without reaching equilibrium. It is, however, possible that this behaviour of cordierite does not occur in rocks because of the more gradual changes of CO (sub 2) contents in natural conditions.


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 5
Serial Issue: 3
Title: Experimental CO (sub 2) incorporation into Mg-cordierite; nonlinear behaviour of the system
Affiliation: Ruhr Universitaet Bochum, Institut fuer Mineralogie, Bochum, Federal Republic of Germany
Pages: 427-438
Published: 199306
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 42
Accession Number: 1993-017370
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1993
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