V. V. Kholodnov
A.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RAS
Russian Federation

Doctor of Geology and Mineralogy, Professor, Head of Laboratory,

15 Akademik Vonsovsky street, Yekaterinburg 620016

G. Yu. Shardakova
A.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RAS; Ural State Mining University
Russian Federation

Candidate of Geology and Mineralogy, Lead Researcher,

15 Akademik Vonsovsky street, Yekaterinburg 620016;

30 Kuibysheva street, Yekaterinburg 620144

G. B. Fershtater
A.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RAS
Russian Federation

Doctor of Geology and Mineralogy, Professor, Chief Researcher,

15 Akademik Vonsovsky street, Yekaterinburg 620016

E. S. Shagalov
A.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RAS; Ural State Mining University
Russian Federation

Candidate of Geology and Mineralogy, Senior Researcher,

15 Akademik Vonsovsky street, Yekaterinburg 620016;

30 Kuibysheva street, Yekaterinburg 620144