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Earth and Space Sciences · Glossary

What is Internally consistent thermodynamic dataset?

Definition 11.2 University Earth and Space Sciences — Year 3 · Chapter 11 — Thermodynamics of Rocks

An internally consistent thermodynamic dataset is a table of the standard properties of many minerals and fluids (enthalpy of formation, entropy, volume, heat capacity, thermal expansion and compressibility) adjusted together, within the uncertainties of calorimetry, so that every equilibrium computed from it passes through the reversed experiments on which it was fitted.

The end-member GASP reaction, 3 anorthite = grossular + 2 kyanite + quartz, computed from the calorimetric tables with constant properties (dashed) and with the heat capacities (dots), and the line fitted to reversed experiments made in the shaded range (red, extrapolated below 900\, C).
The end-member GASP reaction, 3 anorthite = grossular + 2 kyanite + quartz, computed from the calorimetric tables with constant properties (dashed) and with the heat capacities (dots), and the line fitted to reversed experiments made in the shaded range (red, extrapolated below 900 ∘C900\,{}^{\circ}\mathrm{C}).
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