An internally consistent thermodynamic dataset with uncertainties and correlations; I, Methods and a worked example

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Authors:Powell, Roger; Holland, T. J. B.
Author Affiliations:Primary:
Univ. Melbourne, Dep. Geol., Parkville, Victoria, Australia
Other:
Univ. Cambridge, Dep. Earth Sci., United Kingdom
Volume Title:Journal of Metamorphic Geology
Source:Journal of Metamorphic Geology, 3(4), p.327-342. Publisher: Blackwell, Oxford, United Kingdom. ISSN: 0263-4929
Publication Date:1985
Note:In English. 25 refs.; illus. incl. 5 tables
Summary:The philosophy and methods of determining an internally consistent thermodynamic set of data for minerals are described, using the least-squares method. The applicability of the latter is discussed and it is applied to a small set of experimental equilibria in the system Na2O-Al2O3-SiO2-H2O. Not only must the enthalpies of formation of minerals be defined, but also the uncertainties and the correlations among them. This system is small enough to represent graphically in two dimensions. [R.A.H.]
Subjects:Experimental studies; Least-squares analysis; Phase equilibria; Silicates; Statistical analysis; Thermodynamic properties; Na<2`O-Al<2`O<3`-SiO<2`-H<2`O
Abstract Numbers:86M/3056
Record ID:1987035405
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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