General Characteristics

County (administration): Capital City of Prague
District (town): Praha
Cadastre: Zbraslav
Map 1 : 50 000 (sheet No): 1242, 12421
Geological region: Prague agglomeration
Accessibility: - no traffic restriction ( by car)
ID : 246

Geology

Short characteristics of the site: Road cut 400 m long with a section of the Letná Formation (Ordovician, Beroun series). Subgreywackes and quartzose sandstones alternate with siltstones and clayey sandstones. Sandstones are strongly bioturbated. Giant ankeritic concretions appear in several places. Tilting and crushing of strata near to the Závist overthrust.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: paleozoikum
Subject: stratigraphy, sedimentology
Geological phenomenon: horizontal section, concretion , bed, fossils fauna
Genesis: sedimentary
Rock: slate, schist, siltstone, sandstone, greywacke

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: Barrandien
Conflicts of interests: vegetation

References

Havlíček, V. (1992): Ordovik, 59-116. In Chlupáč, I. (ed.): Paleozoikum Barrandienu (kambrium - devon). - Čes. geol. Úst., 1-292. Praha. Havlíček, V. a Vaněk, J. (1966): The biostratigraphy of the Ordovician of Bohemia. - Sbor. geol. Věd, P - paleont., 8, 7-69. Praha. Kukal, Z. (1958): Petrografické výzkumy letenských vrstev Barrandienského ordoviku. - Sbor. Ústř. Úst. geol., 26, 7-111. Praha.

Elaboration and Updating

Elaborated by: Kříž Jiří, 11.10.93
Updated by: Steinová Marika 17.09.09

Citation

The database Significant geological localities of the Czech Republic: 246 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-19]. Available from: http:// lokality.geology.cz/246.

Location in map: