Title Development of the Baltic ice lake in the eastern Baltic
Author Rosentau, A.; Vassiljev, J.; Hang, T.; Saarse, L.; Kalm, V.
Author Affil Rosentau, A., University of Tartu, Department of Geology, Tartu, Estonia. Other: University of Hong Kong, China; ENEA, Italy; University of Tokyo, Japan; Tallinn University of Technology, Estonia
Source Quaternary International, 206(1-2), p.16-23, ; 17th INQUA congress, Cairns, INQUA Commission on Coastal and Marine Processes, and International Geoscience Programme Project 526, Cairns, Queensl., Australia, July 28-Aug. 3, 2007, edited by N.R. Catto, W.W.S. Yim, F. Antonioli and Y. Yokoyama. Publisher: Elsevier, Oxford, United Kingdom. ISSN: 1040-6182
Publication Date Sept. 1, 2009
Notes In English. 58 refs. GeoRef Acc. No: 307811
Index Terms glacial geology; Pleistocene; Baltic Sea; Estonia; Finland; Latvia; Russia; Atlantic Ocean; Baltic ice lake; Baltic region; Cenozoic; coastal environment; Commonwealth of Independent States; deglaciation; digital terrain models; Europe; geographic information systems; glacial environment; ice-marginal features; information systems; North Atlantic; paleoenvironment; paleogeography; Quaternary; Russian Federation; Scandinavia; sea-level changes; uplifts; upper Pleistocene; Western Europe
Abstract A GIS-based palaeogeographic reconstruction of the development of the Baltic Ice Lake (BIL) in the eastern Baltic during the deglaciation of the Scandinavian Ice Sheet is presented. A Late Glacial shoreline database containing more than 1000 sites from Finland, NW Russia, Estonia, Latvia and modern digital terrain models were used for palaeoreconstructions. The BIL occupied five different levels, represented by 492 shoreline features. The study shows that at about 13.3 cal. ka BP the BIL extended to the ice-free areas of Latvia, Estonia and NW Russia, represented by the highest shoreline in this region. Reconstructions demonstrate that BIL initially had the same water level as the Glacial Lakes Peipsi and Vortsjarv, because these water bodies were connected via strait systems in central Estonia. These strait systems were closed at about 12.8-11.7 cal. ka BP prior to the final drainage of the BIL due to isostatic uplift. Glacial Lake Vortsjarv was isolated from the BIL at about 12.4-12.0 cal. ka BP. Exact timing of Glacial Lake Peipsi isolation is not clear, but according to the altitude of the threshold in northeast Estonia and shore displacement data it was completed at about 12.4-11.7 cal. ka BP.
URL http://hdl.handle.net/10.1016/j.quaint.2008.10.005
Publication Type conference paper or compendium article
Record ID 65004859