General Characteristics

County (administration): Central Bohemia Region
District (town): Beroun
Cadastre: Svatý Jan pod Skalou
Map 1 : 50 000 (sheet No): 1241, 12411
Geological region: Barrandien Palaeozoic; Blanice Furrow
Accessibility: - passable footpath
Technical object: guarry
Excursion locality: yes
ID : 155

Geology

Short characteristics of the site: Complex of abandoned quarries. One of the most important Lower Devonian locality in the Barrandian. The Slurian/Devonian boundary interval is exposed together with overlying Lochkov Formation. Example of a facial development of the Lower Devonian (lochkov formation - zlíchov formation).
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: paleozoikum
Subject: stratigraphy, paleontology, geomorphology, sedimentology, structural geology
Geological phenomenon: karst, fossils fauna, karst cave
Genesis: sedimentary
Rock: limestone

Territorial conservation

Level of protection: National nature reserve in Protected landscape area
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 and Biological Locality)
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Český kras
Part of the Geopark: Barrandien
Conflicts of interests: without conflicts

References

Chlupáč, I. (1953): Stratigrafická studie o hraničních vrstvách mezi silurem a devonem ve středních Čechách.- Sbor. Ústř. Úst. geol., odd. geol., 20, 277-380. Praha. Chlupáč, I. (1955): Stratigrafická studie o nejstarších devonských vrstvách Barrandienu. - Sbor. Ústř. Úst. geol, Geol., 21, 2, 91-224. Praha. Chlupáč, I. (1957): Faciální vývoj a biostratigrafie středočeského spodního devonu. - Sbor. Ústř. Úst. geol, Geol., 23, 1, 369-485. Praha. Chlupáč, I., Jaeger, H. a Zikmundová, J. (1972): The Silurian-Devonian boundary in the Barrandian.- Bull. Canad. Petrol. Geol., 20 (1), 104-174. Calgary. Chlupáč, I., Lukeš, P., Paris, F. a Schönlaub, H. P. (1985): The Lochkovian-Pragian boundary in the Lower Devonian of the Barrandian Area (Czechoslovakia).- Jb. Geol. B.A., 128 (1), 9-41. Wien.

Elaboration and Updating

Elaborated by: Chlupáč Ivo, 09.04.93
Updated by: Steinová Marika 12.11.08

Citation

The database Significant geological localities of the Czech Republic: 155 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-05]. Available from: http:// lokality.geology.cz/155.

Location in map: