General Characteristics

County (administration): Central Bohemia Region
District (town): Příbram
Cadastre: Věšín v Brdech
Map 1 : 50 000 (sheet No): 2212, 22121
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - access without footpath
ID : 4161

Geology

Short characteristics of the site: The neoproterozoic silicite are preserved by selective erosion. The rock is predominantly grey with pink spots, mostly it is brecciated and secondary altered. Some relics of so called stromatolitic textures could be found inside brecciated matrix. It is believed that the rocks are connected with hydrothermal activity after Neoproterozoic volcanic activity (Stárková et al. 2018).
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: proterozoikum - neoproterozoikum (1000 - 542 Ma)
Subject: geomorphology, petrology
Geological phenomenon: rock
Genesis: chemogenetic
Rock: silicite

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) - Brdy
Part of the Geopark: Barrandien
Conflicts of interests: forestry

References

Stárková et al. (2019): Vysvětlivky k Základní geologické mapě 1: 25 000 22-121 list Mirošov.; Stárková M., Halodová P., Mrázová Š. (2018): Geneze neoproterozoických silicitů (buližníků) s tzv. stromatolitovými texturami na území Brd. – Zpr. geol. Výzk. 51, 57–62.; POUBA, Z. – KŘÍBEK, B. – PUDILOVÁ, M., (2000): Stromatolite-like cherts in the Barrandian Upper Proterozoic: a review. IN POUBA, Z. – SKOČEK, V., ed. (2000): Neoproterozoic of the Barrandian (Czech Republic). – Věst. Čes. geol. Úst., 75, č. 3, 285–296.

Elaboration and Updating

Elaborated by: Stárková Marcela, 07.08.19

Citation

The database Significant geological localities of the Czech Republic: 4161 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-05]. Available from: http:// lokality.geology.cz/4161.

Location in map: