Abstract. The development of thermal denudation along the shores of lakes leads to the removal of a large amount of suspended and dissolved matter into the water area, which affects the chemical composition of waters, geochemical and lithologic composition of bottom deposits. In 2023, samples of deposits subject to thermal denudation were collected in the area of the Vaskiny Dacha station in Central Yamal. Data on the composition of these deposits will make it possible to analyze lateral fluxes of substances in the "watershed-lake" system.

Keywords: thermal denudation, retrogressive thaw slump, Central Yamal, bottom deposits

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