Large Late Pleistocene landslides from the marginal slope of the Flysch Carpathians

0438567 - ÚSMH 2015 RIV DE eng J - Journal Article
Pánek, T. - Hartvich, Filip - Jankovská, Vlasta - Klimeš, Jan - Tábořík, Petr - Bubík, M. - Smolková, V. - Hradecký, J.
Large Late Pleistocene landslides from the marginal slope of the Flysch Carpathians.
Landslides. Roč. 11, č. 6 (2014), s. 981-992. ISSN 1612-510X. E-ISSN 1612-5118
R&D Projects: GA MŠMT LM2010008
Institutional support: RVO:67985891 ; RVO:67985939
Keywords : fossil landslide * radiocarbon dating * electrical resistivity tomography * pollen analysis * Late Pleistocene * Flysch Carpathians * Marine Isotope Stage 3
Subject RIV: DE - Earth Magnetism, Geodesy, Geography; EF - Botanics (BU-J)
Impact factor: 2.870, year: 2014

The gently concave piedmont of the marginal slope of the Flysch Carpathians in the Czech Republic has long been considered to comprise a system of pediments or coalescent alluvial fans. However, within one of the typical sections of this piedmont, large successive landslides with long travel distances of similar to 2.5km have been identified through geophysical measurements and the investigation of an extensive artificial exposure. Accelerator mass spectrometry (AMS) radiocarbon dating and pollen analysis demonstrate that the uppermost generations of landslide deposits have originated since similar to 56ka BP during the warmer and more humid interpleniglacial conditions of Marine Isotope Stage 3 (MIS 3). The geomorphological evidence for landsliding during MIS 3 has almost completely disappeared from this region due to intensive periglacial processes operating during the Last Glacial Maximum and subsequent fluvial and anthropogenic processes operating during the Holocene. The considerable antiquity of the studied terrestrial landslide bodies is unique within the context of Europe. This study shows the value of re-examining landscape development using new techniques and fresh exposures.
Permanent Link: http://hdl.handle.net/11104/0241997