ИСТИНА

I will present a review of numerical models that cover different aspects of the dynamics of volcano-magmatic systems. A model of a growth of magma chamber by periodic injection of dikes into country rocks with account for heat transfer, latent heat of crystallization/melting, phase diagrams and eruptions. The model is linked to zircon crystals diffusive growth that allows interpretation of magmatic processes based on measurable age and size distributions. A model of volatile rich dike propagation with account of multiple volatile species (water+CO2), crystallization and heat exchange during the ascend. Depending on the water+CO2 ratio of the source magma the dike can reach the surface or can be arrested at shallow depth and solidify. A model of magma ascent in a volcanic conduit with syneruptive crystallization, heat transfer to wall rocks, shear heating and non-Newtonian magma rheology. The model predicts formation of narrow shear zones within conduits with rapid variation of the temperature and crystallinity