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Polštářové lávy ve Straníku

General Characteristics

County (administration): Moravia-Silesian Region
District (town): Nový Jičín
Cadastre: Straník (Nový Jičín)
Map 1 : 50 000 (sheet No): 2512, 25124
Geological region: Subsilesian & Silesian units
Accessibility: - no traffic restriction ( by car)
Excursion locality: yes
ID : 667

Geology

Short characteristics of the site: A small rock, about 5 m high, with a chapel at the top on the northern edge of the village of Straník, shows typical pillow lava documenting Lower Cretaceous submarine volcanism. The pillow lavas are part of the Hradiště Formation (Silesian Unit of the Carpathian flysch belt). Volcanic rock is classified as pyroxenic monchiquite. It is a dark fine-grained rock with porphyroblasts of amphibole, pyroxene and rarely biotite. Variolitic structure can be seen in places. The periphery of pillows shows amygdaloidal texture. The site is protected since 1997 as a natural monument "Pillow lava in Stranik".
Regional geologic unit: Carpathian - Flysch belt - Outer (Menilit-Krosněny) group of nappes
Stratigraphy: mezozoikum - křída - spodní křída
Subject: volcanology, petrology
Geological phenomenon: lava flow
Genesis: volcanic
Rock: monchiquite

Territorial conservation

Level of protection: Nature monument
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area (declared as Geological Locality)
Part of the Geopark: Podbeskydí
Conflicts of interests: vegetation

References

Buriánek, D., Bubík, M. (2012): Horniny těšínitové asociace v okolí Valašského Meziříčí. – Acta Mus. Moraviae, Sci. geol., 97, 1, 105-127. Brno. Bubík et al. (2022): Vysvětlivky k základní geologické mapě České republiky 1: 25 000, list 25-124 Starý Jičín, Archiv České geologické služby, Praha.

Elaboration and Updating

Elaborated by: Eliáš Mojmír, 10.11.93
Updated by: Bubík Miroslav 23.10.12, Bubík Miroslav 13.10.22

Citation

The database Significant geological localities of the Czech Republic: 667 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-03-29]. Available from: http:// lokality.geology.cz/667.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Skalka s kapličkou tvořená polštářovou lávou monchiquitu v rámci hradišťského souvrství, Straník., Miroslav Bubík, 2007
Detail mochiquitové poštářové lávy, Straník., Miroslav Bubík, 2007
Oldřich Krejčí, 1994


(C) 2003-2012 ČGS, verse aplikace 1.21 [3.2.2016]