General Characteristics

County (administration): Central Bohemia Region
District (town): Rakovník
Cadastre: Sýkořice
Map 1 : 50 000 (sheet No): 1232, 12322
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - entry permit for car necessary
Technical object: guarry
ID : 3896

Geology

Short characteristics of the site: Old abandoned quarry exposing an Upper Cambrian intrusive rhyolite which cuts surrounding bodies of Neoproterozoic basalts (spilites). The rhyolite is made of fine grained, partly silicified matrix with quartz and feldspar phenocrysts.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: paleozoikum - kambrium
Subject: volcanology
Geological phenomenon: intrusion
Genesis: volcanic
Rock: rhyolite

Territorial conservation

Level of protection: Interesting geological localities in Protected landscape area
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Křivoklátsko
Part of the Geopark: Barrandien
Conflicts of interests: exploitation

References

Vorel, T., red. (2012): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 12-322 Hudlice. Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Vorel Tomáš, 15.10.15
Updated by: Vorel Tomáš 05.11.15, Kukal Zdeněk 13.09.17

Citation

The database Significant geological localities of the Czech Republic: 3896 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-08]. Available from: http:// lokality.geology.cz/3896.

Location in map: