ABSTRACT
The area of Lithuania is situated in the marginal zone of the Scandinavian Ice Sheet and occupies an intermediate position between the eastern and western parts of the glacial accumulation region of Europe. It therefore includes features of both regions. As a result of this position an almost complete assemblage of Pleistocene glacial deposits is present. The Pleistocene deposits of Lithuania contain a rhythmic sequence of glacial and interglacial deposits. Stratigraphical sequences of deposits reflecting the evolution of the landscape can be related to each glaciation in Lithuania. The advance of the ice sheet at the beginning of a glacial cycle results in the formation of glaciofluvial and glaciolacustrine deposits. The ‘glaciosedimentation cycles’ are demonstrated by the use of ‘cyclograms’ of boreholes, such as those from the Varduva and Sibiriskes boreholes. The sedimentary record can be subdivided into series of strata which can be grouped into various glaciosedimentation cycles. They were formed during the various cold stages of the Pleistocene.
