B. Buyantogtokh
Institute of Astronomy and Geophysics of MAS
Mongolia

Buyantogtokh Bazarin– Researcher.

42 J. Lhagaasurengiin street, Ulaanbaatar 13343.

E. Kh. Turutanov
Institute of the Earth's Crust, Siberian Branch of RAS
Russian Federation

Evgenii Kh. Turutanov - Doctor of Geology and Mineralogy, Head of Laboratory.

128 Lermontov street, Irkutsk 664033.

V. S. Kanaikin
Irkutsk National Research Technical University
Russian Federation

Victor S. Kanaikin - Candidate of Geology and Mineralogy, Assistant Professor.

83 Lermontov street, Irkutsk 664074.