Analysis of Fluvial Systems in the Vicinity of Bežan Hill (Liptovská Kotlina Basin, Western Carpathians)

Analýza fluviálnych systémov v okolí vrchu Bežan (Liptovská kotlina, Západné Karpaty)

Ladislav Vitovič

In: Geografické informácie (Geographical Information), Ročník (Volume) 24, Číslo (Issue) 1, 2020, p. 44-59, ISSN 1337-9453

DOI: 10.17846/GI.2020.24.1.44-59

Abstract

The Liptovská kotlina Basin (LKB), as one of the intermountain basins of the Western Carpathians, belongs to the most active regions together with the Tatra Mts. during the neotectonic phase. It is recorded, besides other features, in character of fluvial systems, which are frequently applied in morphotectonic studies. Plateau terrace T-IX located on the Bežan hill, records the oldest evolution stage of fluvial systems of the LKB. To specify the Plio-Quaternary evolution of the western part of the LKB, sedimentological and geomorphological analysis of fluvial systems was conducted. Man-made outcrops together with 14.5 m drilling enabled to detect fluvial, not fluvio-limnic character of accumulation implying the alternating influence of the Váh River and Ľupčianka Stream. Spatial distribution of deposits points to progressive shifting of the Váh River to north, whereas tendency of the Ľupčianka Stream migration towards the northeast was subsequently changed to western direction. Neotectonic processes are considered to control the fluvial system of the Sliačanka Stream as well.

Keywords: Western Carpathians, Liptovská kotlina Basin, fluvial system, Bežan hill, Váh River, Ľupčianka Stream

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