General Characteristics

County (administration): Central Bohemia Region
District (town): Kladno
Cadastre: Kyšice
Map 1 : 50 000 (sheet No): 1223, 12233
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - passable footpath
ID : 3784

Geology

Short characteristics of the site: This locality is called "Vysoký vrch - the High Hill". It is formed of rocky ridge as long as 500 metres and 100 - 200 metres broad. This ridge is morphologically differentiated into numerous cliffs. This rock is a typical silicite, called also "lydite -buližník". The rock is intensively fractured and rocky cliffs rimmed by heaps of silicite blocks as large as 4 metres across. This silicite is often banded and its surface covered by films of limonite and haematite. Its groud mass consists of fine grained quartz with occassional muscovite. The rock belongs to the volcanosedimentary sequence of the Blovice Formation belonging to the Kralupy-Zbraslav Group of Neoproterozoic age. The locality is situated in the Protected Landscape Area.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: proterozoikum - neoproterozoikum (1000 - 542 Ma)
Subject: geomorphology, geology
Geological phenomenon: block field, rock bag, selective erosion
Genesis: sedimentary
Rock: silicite

Territorial conservation

Level of protection: Registred geological localities suggested to protection in Protected landscape area
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Křivoklátsko
Part of the Geopark: Barrandien
Conflicts of interests: tourism, vegetation

References

M.Stárková et al. (2014): Vysvětlivky ke geologické mapě 12-233 list Unhošť. - MS Archív ČGS Praha.

Elaboration and Updating

Elaborated by: Stárková Marcela, 22.08.14
Updated by: Kukal Zdeněk 27.11.17

Citation

The database Significant geological localities of the Czech Republic: 3784 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-08]. Available from: http:// lokality.geology.cz/3784.

Location in map: