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Geomorphological mapping and relative dating of glacial landforms in Roháčská valley in the Western Tatra Mts.

Citace:
PLUHÁČKOVÁ, M., MENTLÍK, P. Geomorphological mapping and relative dating of glacial landforms in Roháčská valley in the Western Tatra Mts.. Plzeň, 2015.
Druh: PŘEDNÁŠKA, POSTER
Jazyk publikace: eng
Anglický název: Geomorphological mapping and relative dating of glacial landforms in Roháčská valley in the Western Tatra Mts.
Rok vydání: 2015
Autoři: Mgr. Markéta Pluháčková , Doc. RNDr. Pavel Mentlík Ph.D. ,
Abstrakt EN: Geomorphological research in Roháčská valley is accomplished in order to find out the relation between glacier withdrawal and deep-seated gravitational slope deformations. Many studies suggested (e.g. Bovis 1990, Blair 1994, Hippolyte et al. 2009, Coquin 2015) relation between steepening by glacial erosion, debuttressing, stress release and triggering of deep-seated gravitational slope deformations. Research focusing on landform mapping and relative dating was performed in order to assess relation between glacier withdrawal and onset of deep-seated gravitational slope deformation in Roháčská valley. Features related to deep-seated gravitational slope deformation such as scarps, antiscarps and double ridges were investigated in the surroundings of Salatínská valley (tributary valley) in detail. These landforms were mapped by GPS in the same way as other landforms in the valley (landslides, talus, debris avalanches, rock glacier, and moraines). A digital elevation model and orthopohotomap were used for precise delimitation of landforms after the field survey. Schmidt hammer test was accomplished to find out the relative age of glacial (moraines and glacial polishes) and periglacial landforms (rock glaciers) in Salatínská and Roháčská valleys. The relative chronology of glacial and gravitational landforms in the Roháčská valley was established. To accomplish numerical chronology localities for 10Be exposure dating were chosen and samples were taken.
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