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Abstract

Summary

The Late Pleistocene sequence at Novyi Tik best represents the changes in the sedimentary environment of north-western Ukraine, located between western European, Danube and Ukrainian loess belts. That resulted in the transitional character of the studied section, the lithostratigraphy of which bears signs of local, regional and global changes in sedimentation, recording short-term palaeoenvironmental changes. Given the grain-size and geochemistry results, which are firmly in line with the lithostratigraphy, two periods with significantly different sedimentary environment were reconstructed for the Late Pleistocene. At the end of MIS 6, a period of high sand sedimentation rates began and lasted until the end of MIS 5. The highest sedimentation rates presumably occurred during stadials, therefore the soils could inherit the grain-size composition of the parent material. At the end of MIS 5, abrupt changes occurred in sedimentary environment: sand sedimentation almost ceased and a period of aeolian silt accumulation began, which lasted until the Holocene. Unlike the grain-size and geochemistry variations, magnetic susceptibility, having low values, differs slightly in soil and loess units, which may be caused by a humidity-induced transformation of ferromagnetic minerals. However, some palaeosol units have slightly increased magnetic susceptibility. The stratigraphic completeness, occurrence of various lithofacies (palaeosols, loesses and aeolian sands, gully alluvium), faunal remnants and artefacts enhance the potential of the Novyi Tik site for the further multidisciplinary research.

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2023-10-02
2025-03-25
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