1. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry (IGEM), Russian Academy of Sciences, Moscow, Russia
2. Central Research, Institute of Geological Prospecting for Base and Precious Metals (TsNIGRI), Moscow, Russia
3. V.S.Sobolev Institute of Geology and Mineralogy (IGM), Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia