General Characteristics

County (administration): Central Bohemia Region
District (town): Rakovník
Cadastre: Krty
Map 1 : 50 000 (sheet No): 1213, 12133
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - passable footpath
Technical object: guarry
Excursion locality: yes
ID : 3524

Geology

Short characteristics of the site: Magmatites, Western Bohemia. Abandoned flooded quarry exposing biotite granite of so called "Jesenice type". It differs from surrounding granites by common garnet, cordierite and Mg-turmaline (dravite). Potassium feldspar phenocrysts as large as 8 mm are present. Outcrops covered by isolated and scattered boulders and blocks. Nature monument, protecting interesting flora and fauna.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Magmatites in Bohemicum, Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Magmatites in Bohemicum
Stratigraphy: paleozoikum - kambrium - svrchní kambrium
Subject: geology, petrology, geomorphology, mining and mining impacts
Geological phenomenon: intrusion, outcrop, scree
Genesis: 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

Ložek V., Kubíková J., Špryňar P. a kol. (2005): Střední Čechy. In: Mackovčin P. a Sedláček M.(eds.): Chráněná území ČR, svazek XIII. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, str.548 Praha.; Seifert A., red. (2012): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 12-133 Jesenice. Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Štěpánek Petr, 03.05.12
Updated by: Vajskebrová Markéta 22.04.21

Citation

The database Significant geological localities of the Czech Republic: 3524 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-05]. Available from: http:// lokality.geology.cz/3524.

Location in map: