TY JOUR TI Physical properties of snow cover and the mechanism of formation of geochemical barriers in snow mass KW snow cover KW geochemical barriers KW deep frost KW crystal formation KW impurity elements JO Vestnik of geosciences AU Tentyukov, M.P. AU Ignatjev, G.V. AU Sobolev, I.S. AU Gavrilov, R.Y. PY 2022 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"