Ternary-feldspar mixing relations and thermobarometry

Journal Article Internally-Consistent Thermodynamic Data for Minerals in the System Na2O-K2O-CaO-MgO-FeO-Fe2O3-Al2O3-SiO2-TiO2-H2O-CO2 Get access R. G. BERMAN R. G. BERMAN Department of Geological Sciences, University of British ColumbiaVancouver, B. C. Canada V6T2B4 Search for other works by this author on: Oxford Academic Google Scholar Journal of Petrology, Volume 29, Issue 2, April 1988, Pages 445–522, https://doi.org/10.1093/petrology/29.2.445 Published: 01 April 1988 Article history Received: 16 March 1987 Accepted: 07 October 1987 Published: 01 April 1988

10.1093/petrology/29.2.445

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Experimental calibration of the partitioning of Fe and Mg between biotite and garnet

Contributions to Mineralogy and Petrology (1978)

John M. Ferry Frank S. Spear

10.1007/bf00372150

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Ternary-feldspar modeling and thermometry

American Mineralogist (1988)

M. Fuhrman D. H. Lindsley

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An internally consistent thermodynamic data set for phases of petrological interest

Journal of Metamorphic Geology (1998)

T. J. B. Holland Roger Powell

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.

10.1111/j.1525-1314.1998.00140.x

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Geothermometry, geobarometry and the Al2SiO5 triple point at Mt. Moosilauke, New Hampshire

American Mineralogist (1982)

K. V. Hodges Frank S. Spear

The distribution of aluminum silicate minerals in pelitic schists constrains pressure and temperature conditions during the Acadian Orogeny to have been approximately those of the Al 2 SiO 5 invariant point, thus providing an excellent opportunity to evaluate the internal consistency of a variety of published geothermometers and geobarometers with the Al 2 SiO 5 invariant point of Holdaway (1971). Four fluid-independent equilibria yield P-T estimates consistent with Holdaway (1971). Two fluid-dependent equilibria yield internally consistent but unrealistically high temperatures. Our data are consistent with the conclusions that: (1) only pyrope-grossular mixing in the quaternary garnet system is significantly non-ideal; and (2) the activity coefficient for the anorthite component in plagioclase is approximately 2 at triple point P-T conditions.--Modified journal abstract.

Anorthite

Geothermobarometry

Triple point

Pelite

Almandine

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Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages

Contributions to Mineralogy and Petrology (1981)

Edward D. Ghent Mavis Z. Stout

Muscovite