Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Mineralogical Magazine Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Mineralogical Magazine; August 2002; v. 66; no. 4; p. 537-545; DOI: 10.1180/0026461026640047
© 2002 Mineralogical Society of Great Britain and Ireland
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (6)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Vinograd, V. L.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Thermodynamics of mixing and ordering in the diopside –jadeite system: II. A polynomial fit to the CVM results

V. L. Vinograd1,2

1 Institut für Mineralogie, J. W. Goethe Universität, Senckenberganlage 30, 60054 Frankfurt, Germany
2 Institut für Mineralogie, Universität Münster, Corrensstrasse 24, D-48149 Münster, Germany

* E-mail: vinogra{at}uni-muenster.

In Part I (Vinograd, 2002) the relationship between temperature, composition and free energy of the diopside–jadeite solid solution was described using a CVM model. Here the same relationship is described using a combination of Redlich-Kister (RK) polynomials and Gaussian functions. The use of the Gaussians permits an accurate description of the free energy dip centred at Jd50, which is caused by the long-range ordering, while the effect of the short-range ordering can be easily modelled using the RK polynomial The simplified RK-Gaussian description is extended to the three-component diopside–jadeite–hedenbergite solid solution. The polynomial description permits an easy incorporation of the derived activity-composition relations into phase-equilibrium computation software.

KEYWORDS: thermodynamics, cluster variation method, Redlich-Kister polynomial expansion, diopside–jadeite–hedenbergite system




This article has been cited by other articles:


Home page
 American MineralogistHome page
E. Green, T. Holland, and R. Powell
An order-disorder model for omphacitic pyroxenes in the system jadeite-diopside-hedenbergite-acmite, with applications to eclogitic rocks
American Mineralogist, July 1, 2007; 92(7): 1181 - 1189.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
A. P. WILLNER
Pressure-Temperature Evolution of a Late Palaeozoic Paired Metamorphic Belt in North-Central Chile (34{degrees}-35{degrees}30'S)
J. Petrology, September 1, 2005; 46(9): 1805 - 1833.
[Abstract] [Full Text] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Mineralogical Society of Great Britain and Ireland