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.