Verification of Age of Unpaired Terraces of the Ľupčianka Stream (Northern Slopes of the Nízke Tatry Mts., Western Carpathians)

Verifikácia veku nepárových terás potoka Ľupčianka (severné svahy Nízkych Tatier, Západné Karpaty)

Ladislav Vitovič

In: Geografické informácie (Geographical Information), Ročník (Volume) 24, Číslo (Issue) 1, 2020, p. 60-70, ISSN 1337-9453

DOI: 10.17846/GI.2020.24.1.60-70

Abstract

The Ľupčianka Stream, rising from the core of the Nízke Tatry Mts. (NTM), flows to the Liptovská kotlina Basin (LKB), where it joins the Váh River valley. Its accumulations are developed in form of terraces and terraced fans. The paper focuses on verification of age of unpaired terraces on the contact zone between the NTM and the LKB, as the opinions on their age differ. The procedure is based on analysis of terrace sediments consisting of observation of lithology and stage of weathering as well as terrace base detection. Within the field research, ~13 m vertical difference between the terrace bases was identified. Based on applied analyses together with previous investigations, terraces were classified as T-IVa (left-bank) and T-III (right-bank terrace), which is traditionally correlated with younger Mindel and Pre-Riss. Usage of numerical dating would improve the age verification. Neotectonic activity is recorded in morphoposition of remnants as well.

Keywords: Western Carpathians, Nízke Tatry Mts., Ľupčianka Stream, river terrace, gravel analysis

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