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| Titel |
Structure and dynamics of deep-seated slope failures in the Magura Flysch Nappe, outer Western Carpathians (Czech Republic) |
| VerfasserIn |
I. Baroň, V. Cilek, O. Krejci, R. Melichar, F. Hubatka |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 4, no. 4 ; Nr. 4, no. 4 (2004-10-05), S.549-562 |
| Datensatznummer |
250001820
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| Publikation (Nr.) |
 copernicus.org/nhess-4-549-2004.pdf |
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| Zusammenfassung |
| Deep-seated mass movements currently comprise one of the main morphogenetic
processes in the Flysch Belt of the Western Carpathians of Central Europe.
These mass movements result in a large spectrum of slope failures, depending
on the type of movement and the nature of the bedrock. This paper presents
the results of a detailed survey and reconstruction of three distinct
deep-seated slope failures in the Raca Unit of the Magura Nappe, Flysch Belt
of the Western Carpathians in the Czech Republic. An interdisciplinary
approach has enabled a global view of the dynamics and development of these
deep-seated slope failures. The three cases considered here have revealed a
complex, poly-phase development of slope failure. They are deep-seated ones
with depths to the failure surface ranging from 50 to 110m. They differ in
mechanism of movement, failure structure, current activity, and total
displacement. The main factors influencing their development have been
flysch-bedrock structure, lithology, faulting by bedrock separation (which
enabled further weakening through deep weathering), geomorphic setting,
swelling of smectite-rich clays, and finally heavy rainfall. All of the slope
failures considered here seem to have originated during humid phases of the
Holocene or during the Late Glacial. |
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