General Characteristics

County (administration): Central Bohemia Region
District (town): Rakovník
Cadastre: Hracholusky nad Berounkou
Map 1 : 50 000 (sheet No): 1232, 12321
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - access without footpath
Technical object: guarry
ID : 3289

Geology

Short characteristics of the site: Barrandian Neoproterozoic. Old quarry, relics of exploitation, ignition and calcination of calcareous schists of the Neoproterozoic age. They were used for gypsum separation in process of alum production. These calcareous schists differ from common Neoproterozoic schists only by calcite content in their cement and presence of thin calcite veinlets. This lithotype is unique in the Barrandian Neoproterozoic.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: proterozoikum - neoproterozoikum (1000 - 542 Ma)
Subject: sedimentology, mining and mining impacts, economic geology
Geological phenomenon: characteristic rock, mineral
Genesis: sedimentary
Rock: slate, schist

Territorial conservation

Level of protection: Registred geological localities suggested to protection in Protected landscape area
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Křivoklátsko
Part of the Geopark: Barrandien
Conflicts of interests: vegetation

References

Jirkovský, R. (1926): Po stopách dobývání kamenečných a kyzových břidlic v záp. čes. algonkiu na Rakovnicku a Křivoklátsku. – Hornický věstník a Hornické a hutnické listy, 14. Praha.

Elaboration and Updating

Elaborated by: Vorel Tomáš, 14.01.11
Updated by: Kukal Zdeněk 01.10.12, Kukal Zdeněk 01.10.12

Citation

The database Significant geological localities of the Czech Republic: 3289 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-07]. Available from: http:// lokality.geology.cz/3289.

Location in map: