Abstract. During geological survey work on studying and mapping Quaternary formations in the southern part of Maly Taimyr Island, exposures of facies, presumably, of the Middle Pleistocene marine and the overlying glaciofluvial strata were traced. In the southern part of Bolshevik Island, sections of the coastal ridge at an altitude of 100 m above sea level in the interfluve of the Tor and Kamenka Rivers were studied, sections of marine sediments in the middle reaches of the Kasatkina River were described. In the area of modern glaciation, a geomorphological description was made for glaciofluvial formations in the frontal zone of the Leningradsky and Kropotkin glaciers.

Keywords: Severnaya Zemlya, Maliy Taimyr Island, Bolshevik Island, Neopleistocene, marine deposits

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