Affiliation: | (1) Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1a, Irkutsk, 664033, Russia;(2) Geological Institute, Siberian Branch, Russian Academy of Sciences, ul. M. Sakh’yanovoi 6, Ulan-Ude, 670042, Buryat Republic, Russia |