Reconstruction of ice flow directions south of the Baltic Sea during the Saalian and Weichselian glaciations |
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| Authors: | MARGOT BÖSE |
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| Institution: | Institut für Geographische Wissenschaften, FR Physische Geographie, Freie Universität Berlin, Grunewaldstraβe 35, D-1000 Berlin 41, FRG |
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| Abstract: | Till stratigraphical investigations in Berlin have been evaluated using the gravel counting method (4–12.5 mm). The results are compared with studies of several authors from the coastal area north of Berlin (Rügen and Stoltera Cliff near Warnemünde); the gravel counting results from Stoltera Cliff (Cepek 1973) are re-evaluated by means of cluster analysis, and a new stratigraphical interpretation of the sequence in the cliff is given. These results, together with a discussion of correlation problems of Weichselian and especially Saalian tills south of the Baltic Sea, lead to the following hypothesis: it is proposed that the ice margin of each glaciation has been nourished by several ice flows coming from different directions, for the most part turning from north-northeast at onset to east-northeast in later phases. Consequently, differences of composition are found in tills of the same age. |
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