Анотація:
Quartz-polymetal mineralization in volcanic metasomatites (propylites) (1) was transformed by
a metamorphism (530–450 ◦
С) which destroyed the fluid inclusion system and disturbed the
sulfur isotope equilibrium in sulfides. The Au−Ag−Pb−Zn ores in beresites (2) were formed
by the post metamorphic activity with generation of the epithermal regressive sulfide-bearing
system close to the equilibrium temperature range 420–110 ◦
С. In view of the difference in
tendencies for the 34
S content to vary in ore systems, the inversion of ore-forming conditions
from the oxidizing (1) to restoring (2) ones took place.