Lateglacial/holocene sedimentary record from the Labe source area, the Krkonoše Mts

Abstract

This paper presents results of geomorphological research carried out in the Labský důl Valley, the Krkonoše (Giant) Mountains. The aim was to gather new evidence regarding landscape development during the Pleistocene glaciations and the Holocene. A variety of research methods have been applied to landforms and sediments in the Labský důl Valley, including geomorphological, sedimentological, macro- and microfossils analyses. Results of relative-age dating confirms the Würmian age for preserved moraines and radiocarbon date (9.572± 0.054 ka 14C BP) of basal deposits in the Labský důl Valley cirque show that the sedimentary basin was ice-free since the Preboreal. Particle-size characteristics along with palaeobotanical evidence prove the existence of a lake in the cirque floor of the Labský důl Valley during the Lower Holocene