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| Instructions for GAG
GAG is a FORTRAN program that calculates the excess Gibbs Free Energy (G) and activity coeffiecients for garnet endmembers Almandine, Pyrope, and Grossular based on the Berman (1990) model..
To use GAG
- Open the GAG.EXE file.
- Enter the Temperature (C) and Pressure (bar) separated by a comma. Hit Enter.
- Enter the mole fraction of Mg, Fe, Ca, Mn; again separated by commas. Hit Enter.
- The results will be displayed. To enter another compostion and P-T range, hit 1.
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