ABSTRACT
Periodical growth of the climate cooling and humidity in the Late Glacial and the Holocene, causes strong intensification of the mass movements in the Polish Flysch Carpathians. In these climatic phases was registered the increase of the strong hydrometeorological events frequency, which initiated the landslides and the superficial flow processes. Over 60 radiocarbon landslides dated by 14C method, and about 35 datings of the mineral level in the landslide’s peat bogs, allowed the author to reconstruct the climatic phases in the Late Glacial and the Holocene. The concentration of the datings of the Carpathian’s mass movement forms and deposits, is in the following time intervals: the Late Glacial-Preboreal, Boreal-Atlantic transition (8.5–7.8 ka BP), Middle Atlantic (ca 7 ka BP), Atlantic-Subboreal transition (5.2–4.8 ka BP, very well documented by datings), Lower Subboreal (4.3–3.8 ka BP), Upper Subboreal (3.3–2.8 ka BP), the start of the Subatlantic (2.3–1.9 ka BP – the best documented), ca 1 ka BP, and Medieval Centuries (the Little Ice Age). The mentioned periods are very well correlated with the cooling and moistening of the climate commonly registered in the European mountains at that time.
