The cliffs studied reveal a high similarity in terms of geological structure and age of sediments. Differences in the geological structure of particular cliffs occur only in the upper part. They are related to the occurrence of reservoir sediments in some profiles.
The thermoluminescence (TL) age of glacial sediments exposed in the lower part of cliffs shows that they are glacial sediments of the Świecie Stadial (54 400–50 800 years BP). In all profiles in which sediments of this type occur, there is a clear “rejuvenation” of their top part (33 200–38 600 years BP).
The age uniformity of glacial sediments is also confirmed by petrographic analysis. The obtained values of petrographic indices explicitly indicate that in all examined profiles the till is the same and that in particular profiles, despite the variability of sediment colour, only one glacial level occurs.
Keywords: stratigraphy of glacial sediments, cliff, lithology, TL age, Polish Baltic Coast
