Skip to Main Content
GEOREF RECORD

Partitioning of chlorine between muscovite and HCl-buffered solutions from 400 to 600 degree C at 2 kbar

M. Volfinger and M. L. Pascal
Partitioning of chlorine between muscovite and HCl-buffered solutions from 400 to 600 degree C at 2 kbar
European Journal of Mineralogy (December 1989) 1 (6): 791-800

Abstract

The Cl partitioning between muscovite and a chloride aqueous solution has been measured experimentally at 2 kbar from 400 to 600 degrees C. The OH-Cl exchange between muscovite and fluid was performed with a muscovitesanidine- quartz assemblage used as a HCl degrees buffer. The Cl content of muscovite, less than 400 ppm, was measured by counting a radioactive (super 36) C1 tracer. For a given solution chlorinity, the Cl content of the mica increases with HCl degrees activity. The results show a very large variation of the partition coefficient D (ppm Cl mus/molality HCl degrees solution) with the temperature: it is 100 times higher at 400 degrees C than at 600 degrees C. D is independent of the chlorinity in the whole investigated range: 0.5 to 9 m. The Cl content of micas can thus be used as an acidity probe for hydrothermal solutions. When expressed according to the bulk chlorinity of the solution (ppm Cl mus/molality KCl + HCl), the partitioning is independent of temperature in the system muscovite-sanidine-quartz-KCl-HCl-H (sub 2) O. A similar behaviour is predicted for the system muscovite-perthite-plagioclase-quartz-fluid.


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 1
Serial Issue: 6
Title: Partitioning of chlorine between muscovite and HCl-buffered solutions from 400 to 600 degree C at 2 kbar
Affiliation: CRSCM, F-45071 Orleans Cedex 02, France
Pages: 791-800
Published: 198912
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 35
Accession Number: 1992-062993
Categories: Mineralogy of silicatesGeneral geochemistry
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 2 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany
Update Code: 1992
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal