Development and chronology of the lower Vistula River valley, North PÖland |
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| Authors: | EUGENIUSZ DROZDOWSKI Björn E BERGLUND |
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| Institution: | Institute of Geography, Polish Academy of Sciences, ul. Kopernika 19, 87–100 Torun, Poland;Department of Quaternary Geology, Torna-vögen 13, S-223 63 Lund, Sweden |
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| Abstract: | The geomorphology of the river terraces in the lower Vistula River valley of North PÖland is briefly described. They were earlier regarded as Late Wiirmian (terraces IX-IV) and Holocene (terraces III–I). Litho- and biostratigraphical studies of terrace depressions together with radiocarbon datings of their bottom layers indicate that even terrace II was formed during the Allerød Chronozone (11,800 to 11,000 B.P.) or earlier. In addition, radiocarbon datings have shown that the surface sediments of the flood plain were deposited in middle Holocene. These datings are of importance to the chronology of other large river valleys in the southern Baltic region. The interrelationship between erosion/accumulation in the Vistula valley and the shore level of the Baltic is also discussed. |
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