Reconstruction of changes in sedimentation conditions of lakes of the Barents Sea coast during their isolation from the sea in the Holocene (Mustatunturi Ridge, Kola region)

Abstract

In this short communication presented a reconstruction of the isolation process of 4 lakes located on the coast of the Barents Sea (Musta-Tunturi ridge). The reconstruction was carried out on the basis of a lithological description of lakes’ bottom sediments, interpreted as transition zone sediments from marine to lake sedimentation conditions. The lithological description was compiled based on the results of grain-size and LOI (losses on ignition) analyses of 4 lakes’ bottom sediments and its radiocarbon dating. An assumption about the role of tectonic and climatic factors in the isolation of lake basins was made.