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Large territories in many countries of the world are occupied by tailings after placer gold excavation, including Russia (the Urals, Altai, Yakutia, Chukotka, etc.). The technologies of gold excavation for placers were intended for extraction of the most wide-spread gold grains. As a result, small gold particles were often removed in tailings. Long period of staying of fine gold particles in tailings has been accompanying the process of ?new? metal (secondary gold) origin. Detailed investigations of ?new? gold (gr...

The area of intensively polluted territories in the world has been constantly increasing. The ecological situation within such territories is rather difficult. As to Russia one of these territories is the Urals. It is the populated region with a lot of wastes after very long period of mining activity (extraction of gold, platinum metals, salts, coal, diamonds, precious stones, copper, iron, oil, etc.). The special litho-monitoring program is worked out by the Perm University scientists with the purpose to control ...