Stratigraphic position and sedimentary environment of Late Pleistocene deposits along the cliffed coast of the middle part of the Polish Baltic coast

Authors

  • Dariusz Krzyszkowski University of Wrocław, Institute of Geography and Regional Development
  • Dorota Koszka-Maroń Polish Geological Institute - National Research Institute

DOI:

https://doi.org/10.7306/gq.1392

Keywords:

cliff, geological structure, stratigraphy, petrography, Baltic coast

Abstract

The study was carried out in the wall of a cliff that formed as a result of erosional cutting in the western foreland of a moraine landform from the Pomeranian and Gardno phases (Upper Plenivistulian, Rowy–Ustka clifs; northern Poland). Individual lithostratigraphic units have been documented: glaciofluvial delta deposits, Poddąbie Till, lacustrine-glacial Wytowno Formation (consisting of three facies: deltaic, lower diamicton, and upper diamicton), lacustrine deposits of the Orzechowo Formation with a thick peat layer, and aeolian series at the cliff crest. The Wytowno Formation deposits include the following lithologies: medium-grained sands, fine-grained sands, muddy sands, muds, silty clays, clays, varved clays, fine-grained multi-fraction deposits, and tills (Dębina Till). Very high inclination of the strata is the result of glaciodynamic deformation. The deposits were accumulated in a proglacial lake. They are characterized by mud and clay as well as sand and sand-muddy lithofacies. The vastness of the water body is evidenced by a considerable size of the delta, and by massive structures of the clay layers.

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Published

2017-12-13

Issue

Vol. 62 No. 1 (2018)

Section

Articles

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