CONFERENCEEvidence of palaeo-climate changes and their impact on sediment accumulation conditions in the Lubāns Stone-Age settlement areas
Liga Paparde
University of Latvia, Faculty of Geography and Earth Sciences
Laimdota Kalnina
University of Latvia, Faculty of Geography and Earth Sciences
Aija Cerina
University of Latvia, Faculty of Geography and Earth Sciences
Ilze Loze
University of Latvia, Institute of Latvian History
Ivars Strautnieks
University of Latvia, Faculty of Geography and Earth Sciences
Janis Dreimanis
University of Latvia, Faculty of Geography and Earth Sciences
DOI: 10.22364/fg.17.3
Keywords: Paludification, sediment accumulation, loss on ignition, Stone-Age
Abstract
Changes in palaeo-climate and palaeo-geographic conditions have influenced palaeo-vegetation and sediment accumulation conditions during the development of Lake Lubāns. These circumstances have also affected human life conditions and the distribution of Stone-Age settlement sites. To discover notions about evidence of sediment accumulation condition changes and reconstruct the palaeo-geographic conditions of Lake Lubāns, studies were undertaken in Stone-Age settlement areas and the palaeo-lake’s overgrown and paludificated territories. The investigations for this study were based on field work, including sampling, geological coring and probing, obtaining and documenting samples of sediments, as well as laboratory analysis on aspects such as loss on ignition, pollen and macroscopic remain analysis. The results have allowed us to make the conclusion that the most essential of reasons why Stone-Age people changed the sites of their settlements was due to lake water level fluctuations as well as to overgrowing and paludificating of the lake bays and shores.