Slovotenko N. Mineral formation dynamics of fluorite-barite-quartz veins in Beregovo mine field.

Dynamics of formation and evolution of quartz veins in the Beregovo ore field was investigated (Transcarpathian region). The main stage of gold precipitation is connected with quartz vein formation. The mineral association formation is obliged to the mixing of solutions of various origins on the geochemical barrier combined by carbonate veins. On the basis of mineralogical researches and fluid inclusions investigation factual model is created which underwent numerical physical and chemical modeling of the mineral formation processes. The basic volume vein quartz was formed from silica gel. Barite and fluorite grew by the diffusive mechanism of growth in the viscous environment of gel. Seepage of the solutions in the vein space caused dissolution of silica gel and became the reason of quartz recrystallisation. The gold was carried out and deposited on the top levels of the ore field.