Abstract
In a study where one of the objectives was to assess the impact of climate change on evolution of an alluvial fan, the authors determined some geochronological data that enabled them to discuss paleoenvironmental conditions of the Czarny Dunajec River system. They conclude that the gravelly material stored in the fan was deposited probably between c. 27 and 14 ka BP, MIS 2, and link this period of deposition with the glacier development in the Tatra Mountains. The geochronological data presented in their paper, however, does not support largely this statement, also the discussion does not take into account the newest findings in the region, which disprove the presumed connection between alluvium deposition and glacial stages. Additionally, some data on river terraces and alluvial sediments requires clarification, i.e. number of terraces and their heights, straths and the composition of terrace deposits, and the processes from which sediments and the fan originate.
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