Results of the structural study of the Culm sediments near Suchdol nad Odrou

Vol.14,(2007)

Josef Havíř Helena Gilíková

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Abstract
The article informs about preliminary results of the structural study of the Culm sediments near Suchdol nad Odrou. ESE-vergent asymmetric tectonic folds of km order represent the dominant structure found in the studied region. These folds are a part of the Variscan ESE-vergent fold-thrust system formed in the eastern part of the Nízký Jeseník region (for instance Grygar – Vavro 1995). The products of shear deformation (duplexes, asymmetric folds of dm order, striation), connected with folding, were studied at several sites in the region near Suchdol nad Odrou. These shear structures are known also from other regions on the SE margin of the Nízký Jeseník Upland (Havíř et al. 2003). At one site (site G150, S of Fulnek), the sharp folds of dm order with predominantly steep fold axes were found. The origin of the folds at site G150, which orientation differs from characteristic orientations of fold structures studied at other sites, is not reliably interpreted.

Keywords:
Moravian-Silesian Palaeozoic; Variscan compression; orientation of structures; folds
References

Čížek, P. – Tomek, Č. (1991): Large-scale thin-skinned tectonics in the eastern boundary of the Bohemian Massif. – Tectonics, 10, 2, 273–286.
Grygar, R. – Vavro, M. (1995): Evolution of Lugosilesian Orocline (north-eastern periphery of the Bohemian Massif): Kinematics of Variscan deformation. – J. Czech Geol. Soc., 40, 1–2, 65–90.
Havíř, J. – Dvořák, V. – Otava, J. (2003): Nové výsledky strukturního studia paleozoika okolí Hranic. – Geol. výzk. Mor. Slez. v r. 2002, 48–51.
Kumpera, O. (1983): Geologie spodního karbonu jesenického bloku. – Knihovna Ústředního ústavu geologického, sv. 59, 172 pp.
Lehotský, T. (2007): Paleontologické zhodnocení spodnokarbonských sedimentů lokalit Fulnek–Jerlochovice a Jestřabí. – Dílčí zpráva z mapy 25122 Suchdol nad Odrou, MS ČGS.
Otsubo, M. – Sato, K. – Yamaji, A. (2006): Computerized identification of stress tensors determined from heterogeneous fault–slip data by combining the multiple onverse method and k-means clustering. – J. Struct. Geol., 28, 991–997.
Yamaji, A. – Sato, K. – Otsubo, M. (2005): Multiple inverse method software package. User’s guide. – MS Division of Earth and Planetary Sciences, Kyoto University.
Yamaji, A. (2000): The multiple inverse method: a new technique to separate stress from heterogeneous fault-slip data. – J. Struct. Geol., 22, 441–452.

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