International Symposium, Yakutsk-Moscow, 1969 Excursion: Moscow – the Upper Volga and Discussion and general remarks

Abstract

The excursion was devoted to the field examination of palaeogeography of the central part of the Russian Plain. The main attention was on glacial history and periglacial phenomena as the itinerary crossed the area encroached upon by the Moscow ice sheet and in which periglacial processes operated during the Valdai glaciation. These processes are evidenced by the occurrence of cover silts and lacustrine and fluvial sediments. The sections prepared for demonstration during the Symposium excursion revealed glacial and interglacial deposits; hence, it was possible to examine successive phases of glacial and interglacial periods since the second half of the Pleistocene. Glacial marginal formations were also presented. The periglacial phenomena that were demonstrated mainly included loess-like deposits and fossil periglacial structures. These phenomena are indications of the complex of processes characteristic of the periglacial environment in the central part of the Russian Plain during the last glaciation.