Evolution of deep-seated gravitational slope deformation in a deep valley of the Czech Flysch Carpathians
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F25%3AA26039OE" target="_blank" >RIV/61988987:17310/25:A26039OE - isvavai.cz</a>
Result on the web
<a href="https://linkinghub.elsevier.com/retrieve/pii/S0169555X24004975" target="_blank" >https://linkinghub.elsevier.com/retrieve/pii/S0169555X24004975</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.geomorph.2024.109545" target="_blank" >10.1016/j.geomorph.2024.109545</a>
Alternative languages
Result language
angličtina
Original language name
Evolution of deep-seated gravitational slope deformation in a deep valley of the Czech Flysch Carpathians
Original language description
In the Czech Outer Western Carpathians (OWC), the lower limit of deep-seated gravitational slope deformations (DSGSDs) occur associated with moderate local relief and slope gradient, showing a limited degree of geomorphic development. Here, DSGSDs display a relatively high spatial frequency, despite the limited tectonic and seismic activity, often claimed as major preparatory and triggering factors. Nonetheless, favourable stratigraphic and structural features in flysch successions, together with fluvial downcutting, provide conditions prone to DSGSDs. The study area of Travný Mt. hosts the typical DSGSDs in the highest part of Czech OWC. With the aim of unravelling the controlling and triggering factors, the internal structure, and the timing and kinematics of mass-movement activity, a multidisciplinary investigation was performed. LiDAR-based and field geomorphological mapping allowed to constrain the extent of the of DSGSD, expressed by characteristic landforms such as antislope scarps and grabens. The structural analysis and geophysical surveys (ERT and GPR) provided insight into the internal structure of the DSGSD, reaching a depth of >100 m, and supported its mountain-scale spatial propagation. The instability is controlled by inherited faults, deep-penetrating joints and and the stratigraphic contact between brittle caprock overlying weaker rocks. Morphologically, the most prominent deformation is located in the upper part, which is dominated by toppling of flysch blocks with thick-bedded sandstone. The results of the trenching technique and geochronological analyses point to the episodic kinematics of this portion of the DSGSD, revealing a significant displacement event (ca. 9.9 ka) linked to a major climate change occurred after the Late Glacial/Holocene transition.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
GEOMORPHOLOGY
ISSN
0169-555X
e-ISSN
1872-695X
Volume of the periodical
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Issue of the periodical within the volume
1 February 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
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UT code for WoS article
001376811500001
EID of the result in the Scopus database
2-s2.0-85210908279