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Macrofossil reconstruction of preboreal wetland formed on dead ice block: a case study of the Borzechowo mire in East Pomerania, Poland

Słowiński M.

Studia Quaternaria

2010

Vol. 27

3-10

In order to reconstruct environmental changes in the Borzechowo mire, a sediment core was subjected to macrofossil and stratigraphic analyses. The mire is located in the eastern part of the Pomeranian Lakeland (Tuchola F orest, northern Poland). It is a limnogenic mire, formed as a result of terrestrialisation of a water body. The time of basal peat accumulation was estimated by radiocarbon dating as 9860š130 14C BP (Gd-12393) and by palynological analysis as Preboreal. The analysis of macrofossils shows that in that period, considerable hydrological changes took place in the study area. These hydrological changes were caused by melting of dead ice blocks that was commonplace in the Late Glacial and the Early Holocene.