General Characteristics

County (administration): Plzeň Region
District (town): Plzeň-sever
Cadastre: Nový Dvůr u Žihle
Map 1 : 50 000 (sheet No): 1213, 12133
Geological region: Permo-Carboniferous and Tertiary of the Central Bohemian & Western Bohemian limnic regions
Accessibility: - passable footpath
ID : 1909

Geology

Short characteristics of the site: Bohemicum, magmatites. Large group of granite boulders formed by weathering and granite disintegration. This mechanism is also called loaf-like weathering. Biotite granites belong to the Čistá-Jesenice pluton. The largest of these boulders can be called balancing stones, two of them are called "Dědek- the Old Man" and "Bába - the Old woman" and are two largest balancing stones in the Czech Republic. Nearby Žihle Graben is filled by Carboniferous sediments.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Magmatites in Bohemicum
Stratigraphy: kadomské stáří vyvřelin
Subject: geomorphology, petrology
Geological phenomenon: mushroom rock, balancing stone, selective erosion
Genesis: magmatic, weathering
Rock: granite

Territorial conservation

Level of protection: Nature monument
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area: (declared as Geological locality)
Conflicts of interests: tourism

References

Zahradnický J., Mackovčin P. a kol.(2005): Plzeňsko a Karlovarsko. In: Mackovčin P. a Sedláček M.(eds.): Chráněná území ČR, svazek XI. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, str. 363 Praha.

Elaboration and Updating

Elaborated by: Jirková Pavlína, 02.06.09
Updated by: Lojka Richard 10.07.10

Citation

The database Significant geological localities of the Czech Republic: 1909 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-12-08]. Available from: http:// lokality.geology.cz/1909.

Location in map: