General Characteristics

County (administration): Central Bohemia Region
District (town): Praha-východ
Cadastre: Předboj
Map 1 : 50 000 (sheet No): 1222, 12223
Geological region: Czech Cretaceous Basin - Velim, Praha, Roudnice and Ohře Cretaceous
Accessibility: - no traffic restriction ( by car)
Technical object: guarry
ID : 64

Geology

Short characteristics of the site: Abandoned quarry in a Proterozoic silicite (lydite). Traces of Cretaceous marine abrasion. The lydite is overlain by Lower Cretaceous sediments consisting mainly of basal blocky conglomerates. They pass upwards into calcareous claystone with fossil remains. Sedimentologically interesting locality.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: proterozoikum
Subject: geomorphology, paleontology, stratigraphy
Geological phenomenon: rock bag
Genesis: sedimentary
Rock: lydite, marlstone

Territorial conservation

Level of protection: Registered geological localities suggested for protection
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Conflicts of interests: waste disposal

References

Holásek, O. et al. (1988): Geologická mapa ČSSR 1 : 50 000, list 12-22 Mělník. - ČGÚ Praha. Svoboda, P. (1984): Svrchní křída mezi Odolenou Vodou a Neratovicemi - Byškovicemi. - Studie a zprávy okresního muzea Praha - východ, 36-41. Kladno.

Elaboration and Updating

Elaborated by: Nekvasilová Olga, 14.12.93
Updated by: Zelenka Přemysl 19.07.07, Zelenka Přemysl 15.09.09

Citation

The database Significant geological localities of the Czech Republic: 64 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-03-24]. Available from: http:// lokality.geology.cz/64.

Location in map: