General Characteristics

County (administration): Ústí nad Labem Region
District (town): Louny
Cadastre: Petrohrad
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 : 1778

Geology

Short characteristics of the site: Bhemicum, magmatites. Nature monument. Natural outcrops on elevation. The Tisá Granite, medium- up to coarse-grained biotite granite of the Cadomian age (Protrerozoic-Palaeozoic). Giant granite boulders were formed by granite weathering and disintegration. Protected unique forest ecosystem.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Magmatites in Bohemicum
Stratigraphy: kadomské stáří vyvřelin
Subject: geomorphology, botany
Geological phenomenon: rock, outcrop, scree, stratotype, characteristic rock
Genesis: weathering , magmatic
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 (geology is important aspect of Biological declared Locality )
Conflicts of interests: without conflicts

References

Kolektiv autorů. (1999): Ústecko. In: Mackovčin P. (ed.): Chráněná území ČR, svazek I. Agentura ochrany přírody a krajiny ČR, str.143 Praha.

Elaboration and Updating

Elaborated by: Jirková Pavlína, 04.06.09
Updated by: Lojka Richard 10.07.10

Citation

The database Significant geological localities of the Czech Republic: 1778 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-03]. Available from: http:// lokality.geology.cz/1778.

Location in map: