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Experimental study on incorporation of C-H-O-N fluid components in Mg-cordierite

Taras A. Bul'bak and Gennady Yu. Shvedenkov
Experimental study on incorporation of C-H-O-N fluid components in Mg-cordierite (in Micro- and mesoporous mineral phases, S. Merlino (editor))
European Journal of Mineralogy (December 2005) 17 (6): 829-838

Abstract

Experiments on cordierite saturation with "dry" methane, ammonia and the components of H (sub 2) O-CH (sub 4) and H (sub 2) O-NH (sub 3) binary mixtures were performed at 50, 150, 200 MPa in the temperature range from 400 to 800 degrees C to examine the possibility of using Mg-cordierite as an indicator of fluid regime in mineral genesis. We checked that the starting product was free from fluid components at the sensitivity level of the IR and chromatographic methods. Powders with particle size 25-50 mu m were used. The run time was 300 h in all the experiments. The typical bands observed in the IR and Raman spectra demonstrate the presence of fluid molecules in the channels. The partition coefficients of CH (sub 4) , NH (sub 3) , and H (sub 2) O between the fluid phase and Mg-cordierite are temperature independent according to the mass spectrometry data. In "dry" systems, small quantities of H (sub 2) O (up to 0.6 mol.%) are formed by reactions between ammonia and the framework oxygen of the cordierite structure. Thus, the occurrence of water in the structural channels of cordierite does not always mean that water is present in the fluid.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 17
Serial Issue: 6
Title: Experimental study on incorporation of C-H-O-N fluid components in Mg-cordierite
Title: Micro- and mesoporous mineral phases
Author(s): Bul'bak, Taras A.Shvedenkov, Gennady Yu.
Author(s): Merlino, S.editor
Affiliation: Russian Academy of Sciences, Institute of Mineralogy and Petrography, Novosibirsk, Russian Federation
Pages: 829-838
Published: 200512
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
Meeting name: Micro- and mesoporous mineral phases
Meeting location: Rome, ITA, Italy
Meeting date: 20041206Dec. 6-7, 2004
References: 54
Accession Number: 2006-015605
Categories: Mineralogy of silicates
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 5 tables
Secondary Affiliation: Novosibirsk State University, RUS, Russian Federation
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200608
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