Time record of palaeohydrologic changes in the development of mires during the Late Glacial and Holocene, North Podlasie Lowland and Holy Cross Mts

Abstract

Radiocarbon dating of mire sediments is useful tool for reconstruction of time scale of wet and dry phases during the Late Glacial and Holocene. The method is applied here to determine palaeohydrological conditions of some Polish regions. On the basis of 14 C dating of sediment profiles from North Podlasie Lowland and southern piedmont of Holy Cross Mts., duration of wet (1100-1400, 2100-2600, 4700-5000, 7300-7500, 8000-8400, 8800-9200 and 10,500-10,850 BP) and dry (1700-2200, 2600-2800, 3400-3700, ca 4000 and 4500, 5100-5700, ca 6400, 6900-7100, 9200-9300, ca 10,100 and 10,900 BP) periods is suggested.