General Characteristics

County (administration): Plzeň Region
District (town): Rokycany
Cadastre: Líšná u Zbiroha
Map 1 : 50 000 (sheet No): 1232, 12323
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - no traffic restriction ( by car)
Excursion locality: yes
ID : 3749

Geology

Short characteristics of the site: This locality is located at Líšná asettlement near a Zbiroh Town. It belongs geologically to the Barrandian Neoproterozoic and stratigraphically is classified as Kralupy-Zbraslav Group. The rock is represented by a massive, almost black silicite with a network of numerous quartz veinlets. The silicite is fractured and locally displays cataclastic deformation. Steep slope of this rocky cliff is often visited by mountaineers.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: proterozoikum - neoproterozoikum (1000 - 542 Ma)
Subject: geomorphology, structural geology
Geological phenomenon: characteristic rock, selective erosion, horizontal section
Genesis: sedimentary
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) - Křivoklátsko
Part of the Geopark: Barrandien
Conflicts of interests: forestry, recreation

References

T. Vorel et al. (2014): Vysvětlivky k Základní geologické mapě ČR 1:25 000 list 12-232 Podmokly

Elaboration and Updating

Elaborated by: Stárková Marcela, 11.02.14
Updated by: Kukal Zdeněk 27.11.17

Citation

The database Significant geological localities of the Czech Republic: 3749 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-07]. Available from: http:// lokality.geology.cz/3749.

Location in map: