ИСТИНА

The southeastern flank of the last Scandinavian Ice Sheet (SIS) extended over the territory of Northwestern Russia, occupying the White Sea and the downstream part of the Severnaya Dvina River catchment. The last SIS advance (18-17 ka BP in this area) was accompanied by damming of rivers and the formation of proglacial lakes in the valleys of Severnaya Dvina and Vaga and their tributaries. Many questions concerning lake history, dimensions, drainage and chronology are far from being resolved. Our chronostratigraphic studies of natural outcrops and river valley morphology in the Severnaya Dvina catchment area have led us to the reconstruction of two separate proglacial lakes in Vychegda and Vaga valleys in the LGM.