Cited by 4,881Geological and Geochemical AnalysisHigh-pressure geophysics and materialsMetallurgical Processes and Thermodynamics

An internally consistent thermodynamic data set for phases of petrological interest

HOLLAND, T. J. B., POWELL, R.·1998·Journal of Metamorphic Geology

Abstract

The thermodynamic properties of 154 mineral end‐members, 13 silicate liquid end‐members and 22 aqueous fluid species are presented in a revised and updated data set. The use of a temperature‐dependent thermal expansion and bulk modulus, and the use of high‐pressure equations of state for solids and fluids, allows calculation of mineral–fluid equilibria to 100 kbar pressure or higher. A pressure‐dependent Landau model for order–disorder permits extension of disordering transitions to high pressures, and, in particular, allows the alpha–beta quartz transition to be handled more satisfactorily. Several melt end‐members have been included to enable calculation of simple phase equilibria and as a first stage in developing melt mixing models in NCKFMASH. The simple aqueous species density model has been extended to enable speciation calculations and mineral solubility determination involving minerals and aqueous species at high temperatures and pressures. The data set has also been improved by incorporation of many new phase equilibrium constraints, calorimetric studies and new measurements of molar volume, thermal expansion and compressibility. This has led to a significant improvement in the level of agreement with the available experimental phase equilibria, and to greater flexibility in calculation of complex mineral equilibria. It is also shown that there is very good agreement between the data set and the most recent available calorimetric data.

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Crossref · 10.1111/j.1525-1314.1998.00140.x

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Authors
HOLLAND, T. J. B., & POWELL, R.
Affiliations
The University of Melbourne (AU)
Corresponding author
  • HOLLAND, T. J. B.
  • POWELL, R.
Venue
Journal of Metamorphic Geology
Publisher
Wiley
Published
1998-05
Volume
16
Issue
3
Pages
309-343
ISSN
  • 0263-4929 (ISSN-L)
  • 1525-1314
OpenAlex
W1830358639
Cited by
4,881
References
1
Citations by year
2026: 94 · 2025: 144 · 2024: 185 · 2023: 188 · 2022: 211 · 2021: 242 · 2020: 243 · 2019: 256 · 2018: 240 · 2017: 234 · 2016: 233 · 2015: 238 · 2014: 250 · 2013: 209 · 2012: 229
FWCI
43.08
Type
journal article
Language
en
Open access
closed
Locations
Journal of Metamorphic Geology (publishedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
  • Physical Sciences › Engineering › Mechanical Engineering › Metallurgical Processes and Thermodynamics
Keywords
silicate melts, aqueous liquid, thermal expansion, bulk modulus, alpha-beta quartz transition, aqueous speciation, mineral solubility, calorimetric data, molar volume, compressibility, phase equilibria

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