The problem of quantitative evaluation of fluid composition under metamorphism (verification of physical-chemical modeling of water - mineral - rock reactions)
The paper offers results of comparison of physical-chemical quantitative calculation of the reaction fluid's composition (based on the "Winsel" software package) with experimental data for the systems water-electrolyte (NaCl, HCl, NaOH, KOH) - mineral (quartz, corundum, microcline, plagioclase) - rock (granite, pelite) at T 400°-800°C and P 1-10 kbar P-T and fluid composition constraints have been established which ensure agreement of calculations of rock and mineral dissolution and experimental data.