Abstract
The purpose of this paper is to determine the relative age of selected debris-flow accumulations in Roháčská valley and its tributary valleys, Western Tatra Mountains. The relative chronology was determined using the Schmidt hammer test and lichenometric measurements of selected accumulations.
For Schmidt hammer testing, 3-5 suitable boulders of each accumulation were selected and at each boulder, 30 rebound values were collected. Where possible, lichenometry was performed at the same boulders to compare the results.
Sampling based on the diameter of the largest thalli and the diameter of five largest thalli of Rhizocarpon geographicum were performed and the results were compared with the available precipitation totals measured at the meteorological station Kasprowy Wierch and aerial photographs taken in 1973, 1986, 2003 and 2015.