Mercury and its associated mineralizations in southern Siberian Platform
Sixteen geologically definable areas within the Irkutsk amphitheater (maps), with the total of about 100 dispersion halos and indications of mercury in waters, alluvium, and rocks of various origin and age, may contain blind ores of cinnabar, particularly in the zones of fractures on the margins of the Siberian Platform and within the platform itself. --IGR Staff.