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Full Description
During the last thirty years profound developments in expe- rimental techniques to measure high temperature and pressu- res and thermodynamic properties of minerals have occurred. This technical development has been matched by an increased sophistication in applying theoretical methods to obtain new data or improve the quality of existing data. Using these newtechniques, Assessed Thermodynamic Data on Oxides and Silicates represents the successful attempt of the authors to develop an internally systematized data base which satis- fies the constraints of calorimetric measurements, phase equilibrium data, measured thermophysical properties of a phase, and heat capacities and entropies estimated from lat- tice vibrational models.
Contents
1. Introduction: Thermodynamic Data Systematics.- 2. Thermodynamic Relations.- Temperature and pressure dependence of the Gibbs free energy.- Heat capacity at high temperature.- Estimation of Cv.- Method of optimization.- Anderson's enthalpy/bulk modulus relationship.- Some comparisons.- Molar volume at high pressure and high temperature.- The use of the Birch-Murnaghan (BM) equation at high temperature.- Comparison with Anderson's model.- 3. Techniques for Data Assessment.- Computational techniques.- The manual adjustment approach using free energy minimization.- The regression technique.- The optimization technique.- Phase equilibrium calculation by SOLGASMIX.- 4. Assessment of Data on Some Oxides and Silicates: Calorimetry and Low-pressure Phase Equilibrium Experiments.- The system Si02.- Andalusite, kyanite and sillimanite.- Wollastonite, gehlenite, akermanite and monticellite.- Enstatite and pyrope.- Forsterite.- Fayalite and ferrosilite.- Orthodiopside.- Clinoenstatite.- Diopside.- Hedenbergite.- Ca-tschermak, anorthite and grossular.- Almandine and hercynite.- Spessartine.- Rutile and ilmenite.- Sanidine and muscovite.- Jadeite, albite and paragonite.- Phlogopite.- Annite and phlogopite-annite solution.- Talc and anthophyllite.- Brucite, chrysotile and antigorite.- Grunerite.- Ferrocordierite and the cordierite-ferrocordierite solution.- Hydrous cordierite.- 5. Assessment of Data on Some Oxides and Silicates: Calorimetry and High-Pressure Phase Equilibrium Experiments.- System Fe-0.- Polymorphism of Fe.- Wustite.- Magnetite and hematite.- System MgO-SiO2.- Polymorphism of SiO2.- Polymorphism of Mg2Si04.- Polymorphism of MgSi03.- System FeO-SiO2.- Polymorphism of Fe2SiO4.- Polymorphism of FeSiO3,.- 6. Assessment of Solid Solution Parameters for SomeSilicates.- Solid solution models.- Gehlenite-akermanite.- Spinel-hercynite.- Forsterite-fayalite.- Forsterite-monticellite.- Fayalite-monticellite.- Enstatite-ferrosilite.- Enstatite-diopside.- Clinoenstatite-jadeite.- Diopside-jadeite and hedenbergite-jadeite.- Muscovite-paragonite.- Phlogopite-annite.- Cordierite-ferrocordierite.- Cordierite-hydrous cordierite and ferrocordierite-hydrous cordierite.- Anorthite-albite, anorthite-sanidine and albite-sanidine.- Interaction parameters.- References.- Appendix I: Tables of Thermodynamic Data.- Appendix II: Summary of Reactions in the Mg-Fe-Si-O system.- Species Index.
