PHYSICOCHEMICAL MODELING OF PROCESSES OF CONTACT-INFILTRATION METASOMATISM

Abstract

The authors present the results of an attempt to employ physicochemical computer modeling of contact-infiltration metasomatism by convex programming methods in order to establish the origin of nephrite vein No. 7 in the Ulankhodinskoye deposit, Eastern Sayan. In this modeling, we used principles of the stability theory for steady-state megasystems and the algorithm derived from it that simulates the interaction of an ensemble of open multicomponent systems with electrolytic aqueous solutions, gas phases and single-component and solid-solution mineral phases. The authors also calculated the stability of this ensemble of open multicomponent systems by solving, by the decomposition method, the specially aggregated problem of convex programming. They also analyzed contact-infiltration metasomatism in a megasystem consisting of three systems.