Yu. V. Ryzhov
Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences; Sochava Institute of Geography, Siberian Branch of the Russian Academy of Sciences; Institute of Geography, Russian Academy of Sciences; Irkutsk State University
Russian Federation

128 Lermontov St, Irkutsk 664033,

1 Ulan-Batorskaya St, Irkutsk 664033,

29-1 Staromonetny Ln, Moscow 119017,

1 Karl Marx St, Irkutsk 664003

V. A. Golubtsov
Sochava Institute of Geography, Siberian Branch of the Russian Academy of Sciences; Institute of Geography, Russian Academy of Sciences
Russian Federation

1 Ulan-Batorskaya St, Irkutsk 664033,

29-1 Staromonetny Ln, Moscow 119017

M. V. Smirnov
Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences; Sochava Institute of Geography, Siberian Branch of the Russian Academy of Sciences; Irkutsk State University
Russian Federation

128 Lermontov St, Irkutsk 664033,

1 Ulan-Batorskaya St, Irkutsk 664033,

1 Karl Marx St, Irkutsk 664003