Stratigraphy of the Late Glacial and Holocene aeolian series in different sedimentary zones related to the Last Glacial maximum in Poland

Lateglacial and Holocene sandy aeolian sequences with palaeosol horizons located in different sedimentary zones in western-central Poland were analysed in order to establish their regional stratigraphical and palaeoenvironmental significance. Results of sedimentological, geomorphological and absolute dating methods from 3 representative profiles from an extraglacial zone (Leszczyca site), a glaciomarginal zone (Barczyglow site) and a glaciated zone (Godzieba site) are presented. A compilation of 31 luminescence dates from aeolian sands and C-14-dates from palaeosols formed the basement for establishing the stratigraphic position of the analysed deposits. The obtained results were correlated with reference to Greenland ice-core chronology, which has the best resolution for the Northern Hemisphere. In the extraglacial zone, aeolian deposition started in the Oldest Dryas and continued throughout the Older Dryas (main phase of dune built) with limited deposition in the Younger Dryas and finished in Preboreal. Aeolian deposition was interrupted by pedogenic processes in the Bolling and Allerod interstadials as well as in the Younger Dryas-Preboreal transition. Whereas in the glaciomarginal zone aeolian deposition started in the Younger Dryas and continued to the Early Boreal with a weakly expressed pedogenic process in the Early Preboreal. In the glaciated zone, aeolian deposition took place in the Younger Dryas. At the Barczyglow and Godzieba sites palaeosols of the Roman Period and 19th century were detected, covered by aeolian sands. The Subatlantic aeolian episodes were induced by human activity and registered forest fires. Identified periods of aeolian activity and pedogenic processes were correlated with other profiles from central and western Europe.

Automated summary

Lateglacial and Holocene aeolian sequences in different sedimentary zones in western-central Poland were analyzed to establish their regional stratigraphical and paleoenvironmental significance. Sedimentological, geomorphological, and absolute dating methods were used to analyze profiles from extraglacial, glaciomarginal, and glaciated zones. The results were correlated with Greenland ice-core chronology. The study found that aeolian deposition started in the Oldest Dryas in the extraglacial zone, Younger Dryas in the glaciomarginal zone, and Younger Dryas in the glaciated zone. Pedogenic processes interrupted aeolian deposition in certain periods. Subatlantic aeolian episodes were induced by human activity and forest fires. The identified periods of aeolian activity and pedogenic processes were consistent with other profiles in Europe.