TY JOUR TI Regional stratigraphic scheme of Quaternary deposits of the north and northwest of the Eastern European platform: yesterday, today and tomorrow KW General Stratigraphic scale of Quaternary KW Middle Valdai interstadial KW Holocene JO Vestnik of geosciences AU Semenova, L.R. AU Krotova-Putintseva, A.Y. AU Nosevich, E.S. PY 2026 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"