Glacioisostasy in northern Belarus: evidence and events

Irina E. Pavlovskaya


Evidence of glacioisostatic rebound within the ice marginal zone of the last glaciation is presented. The largest glacial lake of Belarus, i.e. the Polotsk lake situated at a short distance from the maximum limit of the Poozerie (Weichselian) Glaciation, was chosen as an object. Spectrum of glaciolacustrine terraces as well as succession of glaciolacustrine series are described. Differences of proximal and distal sequences are defined. Morphological and geological peculiarities of the Polotsk basin are conditioned by the glacioisostatic downwarping. The amplitude of glacioisostatic movements reached up to 40 m. Reconstruction of the events related to the glacioisostasy (shore displacement and water body migration) is given. Glacioisostatic rebound in areas with relatively small ice-loading had a discordant character.


Belarus; Late Pleistocene; glacioisostasy; glacial lake; shorelines; tilting

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