10Be dating reveals pronounced Mid-to Late Holocene activity of deep-seated landslides in the highest part of the Czech Flysch Carpathians

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F18%3AA1901V5T" target="_blank" >RIV/61988987:17310/18:A1901V5T - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.quascirev.2018.07.030" target="_blank" >http://dx.doi.org/10.1016/j.quascirev.2018.07.030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.quascirev.2018.07.030" target="_blank" >10.1016/j.quascirev.2018.07.030</a>

Result language

angličtina

Original language name

10Be dating reveals pronounced Mid-to Late Holocene activity of deep-seated landslides in the highest part of the Czech Flysch Carpathians

Original language description

Although the highest part of the Czech Outer Western Carpathians lacks significant recent landslide activity, the vast area (10Be dating reveals pronounced Mid-to Late Holocene activity of deep-seated landslides in the highest part of the Czech Flysch Carpathians20%) of their territory is occupied by relict deep-seated landslides and deep-seated gravitational slope deformations. Dating these deformations might help to determine degrees of present-day landslide hazard in that area. Based on the 10Be exposure dating of eight rocky scarps and walls of ridge-top trenches, we estimated the minimal ages of the deep-seated landslides (DSLs) and one deep-seated gravitational slope deformation (DSGSD) in the Satina River basin in the Moravskoslezské Beskydy Mts. The obtained ages (~9.7-2.9 ka) suggest Holocene slope instability in the area with a pronounced cluster of ages spanning from ~6.0 to 2.9 ka. Except for one DSL, the ages reveal rather episodic activity of gravitational movements. Mid-to early Late Holocene activity of large landslides in the study area corresponds to the ages of several previously dated landslides both in an adjacent region as well as within the Central European context. With respect to the historical quiescence of the DSLs and DSGSDs in the area and because the slopes have not been destabilized, even during the most extreme hydrometeorological events within the last few decades, we infer that the hydrometeorological thresholds necessary for their activation are seldom exceeded in this area. Therefore, the highest parts of the Carpathians built by rigid thick-bedded lithology reveal a rather lower frequency of events in comparison with adjacent parts formed by claystone-dominated flysch, where several large DSLs originated in the last few decades as a consequence of heavy rainfalls.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10508 - Physical geography

Project

<a href="/en/project/GA17-17712S" target="_blank" >GA17-17712S: Sackung in non-glaciated landscapes: spatial and temporal behavior of deep-seated gravitational slope deformations in Outer Western Carpathians</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

QUATERNARY SCI REV

ISSN

0277-3791

e-ISSN

—

Volume of the periodical

195

Issue of the periodical within the volume

1.9.2018

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

180-194

UT code for WoS article

000442332700011

EID of the result in the Scopus database

2-s2.0-85050410090