New Insights Into the Genesis of the “Poznań Clays” – Upper Neogene of Poland
| Author(s): |
Piotr Maciaszek
(Polish Geological Institute – National Research Institute , Marine Geology Branch, Gdańsk , Poland)
Lilianna Chomiak (Adam Mickiewicz University , Poznań , Poland) Paweł Urbański (Polish Geological Institute – National Research Institute, Warszawa , Poland) Marek Widera (Adam Mickiewicz University , Poznań , Poland) |
|---|---|
| Medium: | journal article |
| Language(s): | English |
| Published in: | Civil and Environmental Engineering Reports, March 2020, n. 1, v. 30 |
| Page(s): | 18-32 |
| DOI: | 10.2478/ceer-2020-0002 |
| Abstract: |
The present study focuses on the upper Neogene deposits, called the “Poznań Clays”, that cover more than 75,000 km² of Poland. They are situated between the first mid- Polish lignite seam and the glaciogenic deposits of the Pleistocene age. Lithostratigraphically, the “Poznań Clays” belong to the uppermost portion of the lignite-bearing Grey Clays Member and the whole Wielkopolska Member (Poznań Formation). The examined fine-grained sediments include mud-rich floodplain deposits with palaeosol remnants and large sandy-muddy or muddy palaeochannel bodies. Therefore, taking into account facies analysis, cross-sectional geometry, and the planform of the palaeochannels, it can be stated that the “Poznań Clays” formed in the environment of a late Neogene anastomosing river. |
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data sheet - Reference-ID
10705144 - Published on:
19/02/2023 - Last updated on:
19/02/2023
