ON THE PROBLEM OF QUANTITATIVE MODELING F OR EVOLUTION OF ORE-MAGMATIC SYSTEMS

Ouantitative models for dynamics of the evolution of ore-magmatic syst ems have been developed quite irregularly. The most advanced approach is the mathematical modeling of heat and mass transfer processes for t he case of origin of granitoid plutons, where magma crystallization is accompanied by retrograde boiling and development of an orthomagmatic fluid system. The least formalized description is given to the dynami cs of the development of fluid ore-magmatic systems of deep fault zone s and slowly spreading mid-oceanic ridges. Quantitative description of separate fragments of the evolution of a magmatic or a fluid ore-magm atic system is proposed for the ore-magmatic systems connected with sh allow-depth magmatic chambers of rapidly spreading ridges and basite m elts differentiating in intrusive chambers. There is no self-consisten t quantitative model for the development of this kind of ore-magmatic systems yet. A similar situation exists for the case of evolution of o re-magmatic systems, appearing when basite magmas intrude the carbonat e-halogen deposits of the Siberian Platform cover. Mathematical modeli ng for the evolution of different fluid ore-magmatic systems has sever al similar genetical problems solved now partly or poorly: 1) understa nding of physical and physicochemical processes connected with retrogr ade boiling (distillation) of magma, 2) description of the process of mixing of magmatic gases and porous solutions of the rocks hosting the magmatic body; 3) description of the process of filtration of mantle- derived fluids through permeability zones of deep-seated faults. To so lve these problems seems presently to be the most urgent for advancing the theory of the evolution of ore-magmatic systems.