Late glacial environmental history in Lithuania

ENA detailed description of the Late Glacial environment was attempted through an interpretation of pollen data and lithologi- cal records in the sequences with 14 C chronologies. Pollen data suggests that during the pre-Alleröd time (>11.9 14 C kyr. BP) tree-less vegetation fourished in the area where sedimentation in freshwater bodies with a high water level was dominant. The formation of Betula and Pinus predominating forest (11.9−11.8 14 C kyr. BP) coincides with the increasing representation of the organic constituent in investigated sequences. Palaeobotanical records show some improvement of the climatic conditions since the middle of the younger Dryas cold event (10.5−10.4 14 C kyr. BP). sedimentation in oligo-mesotrophic nutrient-rich lakes with a rather high water level was typical for the end of the Late Glacial. Key words: pollen data, vegetation development, environmental changes, Late Glacial, Lithuania.