TY JOUR TI Final stage of loess accumulation in the glacial zone of the last glaciation (northwestern Russian Plain) KW loessoids KW Northwest of the Russian Plain KW Valdai glaciation KW soils KW lithogenic matrix JO Vestnik of geosciences AU Rusakov, A.V. AU Leontev, A.A. AU Makeev, A.O. AU Mokievsky, N.V. PY 2026 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"