Abstract. This paper outlines and reviews the existing hypotheses of the formation of the Poozerie ridge in the Novgorod district of the Novgorod region. Various levels of the proglacial lake and ancient Ilmen Lake have been reconstructed, with the position of the ridge shown in each reconstruction. A theoretical possibility that the Pra-Volkhov River flowed in the reverse direction has been analyzed. It has been demonstrated that during the Holocene, Lake Ilmen occupied a lower level compared to the modern one. The data on the sedimentary composition of the Poozerie ridge is supplemented with personal field observations.

Keywords: esker, incision delta, glaciofluvial landforms, proglacial lake, proglacial lake outburst

REFERENCES: 

Borisevich E.A. Stone Age monuments in the vicinity of Veliky Novgorod (brief overview). LIV Ural-Volga region archaeological student conference: Materials of the All-Russian (with international participation) archaeological student conference (Astrakhan, February 01–03, 2022) / comp. and resp. ed. D. V. Vasiliev. - Astrakhan. 2022. P. 7-10.

Bylinsky E.N. The influence of lowering the levels of the Ilmen and Ladoga lakes on the development of longitudinal profiles of the lake’s tributaries. Ilmen and Volkhova // Bulletin of Moscow State University. Ser. biology, soil science, geology, geography. 1959. No. 3. P. 221–231.

Vasilyeva N.V., Subetto D.A., Verbitsky V.R., Krotova-Putintseva A.E. History of the formation of the Ilmen-Volkhov basin // News of the Russian State Pedagogical University. A.I. Herzen. 2012. P. 141-150.

Verbitsky V.R. and others. State geological map of the Russian Federation on a scale of 1:200,000. 2nd edition. Ilmen series. Sheet O-36-XIV (Veliky Novgorod). Explanatory letter. St. Petersburg: VSEGEI Cartographic Factory, 2007. 255 p.

Vinogradov A. Yu., Obyazov V. A. Glacioisostatic uplift of the Ilmen Lowland in the Holocene // Scientific research: key problems of the 3rd millennium. Sat. Art. according to mat. XXIV International Scientific and Practical Conference (Russia, Moscow, April 1-2, 2018). Moscow. Ed. "Problems of Science", 2018. pp. 99-102.

Danilovsky I.V. Geological structure of the western part of the lake basin. Ilmen and the right bank of the river. Sheloni // Proceedings of VGRO. 1932. Issue. 264. P. 14.

Ilyina L. L., Grakhov A. N. Volkhov. L.: Gidrometeoizdat, 1980. 120 p.

Komagorova M.A., Borisevich E.A. Neolithic site of Kolomtsy near Novgorod: what made people leave it // Paths of evolutionary geography. Vol. 2: Materials of the II All-Russian Scientific Conference dedicated to the memory of Professor A.A. Velichko (Moscow, November 22–25, 2021). M.: Institute of Geography RAS, 2021. P. 620-624.

Malakhovsky D.B. On the question of the history of relief development in the lake area. Ilmen // Materials on geology and mineral resources of the North-West of the RSFSR. Vol. 5. L., 1966. P. 186–191.

Sokolov N.N. Geomorphological sketch of the river area. Volkhov and lake Ilmen // Materials on the study of the river. Volkhov and its basin. Vol. VII. L., 1926. P. 173-177.

Komagorova M.A., Borisevich E.A. New data on the rise of Lake Ilmen (NW, Russia) in the Holocene // Limnology and Freshwater Biology. 2022. Vol. 4. P. 1435-1437. doi: 10.31951/2658-3518-2022-A-4-1435