Thermodynamics of complex phases

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Authors:Powell, Roger
Author Affiliations:Primary:
Univ. Leeds, Dep. Earth Sci., Leeds, United Kingdom
Volume Title:Kinetics and equilibrium in mineral reactions
Volume Authors:Saxena, Surendra K., editor
Source:Kinetics and equilibrium in mineral reactions, edited by Surendra K. Saxena, p.241-266. Publisher: Springer-Verlag, New York, NY, United States. ISBN: 0-387-90865-X
Publication Date:1983
Note:In English. 14 refs.; illus.
Summary:For solutions showing substantial non-ideality with strong short-range ordering, the regular models for expressing activity-composition relationships in silicates are inadequate. In the development of mixing models, it is always preferable to start with a formulation of the Gibbs energy and to derive the activity-composition relationship and the necessary constraint equations from this formulation. The formalism provides a way of doing this which simplifies the work involved and thus reduces the possibility of confusion and mistakes; it also allows a clearer exposition of the thermodynamics of the quasi-chemical model than is usually presented. [R.A.H.]
Subjects:Enthalpy; Mathematical models; Metamorphic rocks; Mineral assemblages; Minerals; Mixing; Phase equilibria; Thermodynamic properties
Abstract Numbers:84M/2644
Record ID:1987033500
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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