HLUBOKÁ SVAHOVÁ DEFORMACE NA KOPCÍCH U LIDEČKA: VÝSLEDKY INVENTARIZAČNÍHO A GEOFYZIKÁLNÍHO PRŮZKUMU

Roč.11,(2004)

Ivo Baroň

PDF
Abstrakt
A complex interdisciplinary approach of a deep-seated landslide at the Kopce anticlinal ridge enabled us to speculate about its history and evolution. Large blocks of two competent about 20 m thick sandstone layers, superposed each other and combined with plastic 10-15m thick shales of Luhačovice Member, slid down the N slope of the Kopce Hill. They deformed their foreground in accumulation zone, formed pressure ridges and other slope failure features. The 40-50 m deep near-scarp depression behind the plates was filled with boulders and sandstone blocks later (lateral spread as well as rotational block slide in upper part and topple at the rock plates upper margin). 13 pseudo-karst caves have developed there; their total length reaches up to 360 m. Accumulations of the rotational part have creep down the eastern steep slope. The colluvium has periodically accelerated at lower sanstone layers superface at place of the debris flow. An archaeological dating, based on observations of a Lusatian Urn Field Culture defensive mound deforming, showed that the block landslide is older than 2,5 to 3 ka BP.

Klíčová slova:
Western Carpathians; flysch; deep-seated landslides; pseudo-karst caves; landslide dating; Ground Penetrating Radar
Reference

Baroň, I. – Cílek, V. – Melichar, R. – Melka, K. (2003a): Jílové minerály svahových sedimentů vybraných hlubokých svahových deformací na Vsetínsku (Clay minerals in slope sediments of selected deep-seated landslides, Vsetín region, Moravia, Czech Republic). – Geol. výzk. Mor. Slez. v roce 2002, 10, 89–91. Brno.

Baroň, I. – Cílek, V. – Melichar, R. (2003b): Pseudokrasové jeskyně jako indikátory svahových pohybů (Pseudo-karst caves as indicators of the slope movements). – Geol. výzk. Mor. Slez. v roce 2002, 10, 84–87. Brno.

Baroň I. (2002): The changes of a flow landslide shape after two years. – In: Rybář J., Stemberk J., Wagner P. (eds.): Landslides – Proceedings of the 1st European Conference on Landslides, Prague, Czech Republic, June 24–26, 2002. Swets & Zeitlinger, Lisse, 341-342.

Baroň I. ( 2001): Pseudokrasové jeskyně. – In: Pavelka J., Trezner J. (eds.): Příroda Valašska (okres Vsetín). ČSOP, Vsetín: 45–49.

Baroň, I. – Dobeš, P. (2000): Výsledky speleologických výzkumů na Kopcích u Lidečka. – Speleofórum, 19: 5-11.

Burkhardt, R. – Plička, M. ( 1967): Dva význačné sesuvy ve Vizovické vrchovině. – Sborník ČS spol. zeměpisné 72 (4), 305 – 311.

Dikau, R. – Brunsden, D. – Schrott, L. – Ibsen, M.-L., (eds.) (1996): Landslide recognition, Identification, Movements, and Causes. – John Wiley & Sons, Chichester 1996, 251 pp.

Dohnal V. (1988): Opevněná sídliště z doby popelnicových polí na Moravě. – Studie Muzea Kroměřížska 1988, 120 pp. Kroměříž.

Margielewski W. (2002): Late Glacial and Holocene Climatic Changes Registered in Landslide Forms and their Deposits in the Polish Carpathians. – In: Rybář J., Stemberk J., Wagner P. (eds.): Landslides Proceedings of the 1st European Conference on Landslides, Prague, Czech Republic, June 24-26, 2002. – Swets & Zeitlinger, Lisse, 399 – 404.

Wagner, J. (1994): Objevy nových jeskyní ve Vizovických vrších (Česká republika). – Proceedings of the 5th Pseudokarst Symposium with International Participation, Szczyrk.

Metriky

324

Views

257

PDF views

PDF