General Characteristics

County (administration): Plzeň Region
District (town): Rokycany
Cadastre: Třebnuška
Map 1 : 50 000 (sheet No): 1232, 12323
Geological region: Barrandian Proterozoic; Tisá and Čistá-Jesenice massifs
Accessibility: - passable footpath
Technical object: gallery
ID : 3766

Geology

Short characteristics of the site: An old gallery in the lamprophyre dyke which cuts the ryolite massive was excavated probably in 19th century for the gold prospection. The length is about 120 metres. Several authors refer to this locality. Recently, host rock has been described as an alkaline basalt. This locality is a part of the Protected Landscape Area.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: paleozoikum - kambrium - svrchní kambrium
Subject: geology, mining and mining impacts
Geological phenomenon: vein
Genesis: volcanic , hydrothermal mineralization
Rock: lamprophyre, rhyolite

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: without conflicts

References

Breiter K., Žák K.(2006): Neobvyklá žilná hornina ze štoly pod Matčinou horou u Zbiroha. - Zprávy o geol. výzkumench v roce 2006, 120-124.

Elaboration and Updating

Elaborated by: Hradecký Petr, 02.04.14
Updated by: Kukal Zdeněk 27.11.17

Citation

The database Significant geological localities of the Czech Republic: 3766 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-29]. Available from: http:// lokality.geology.cz/3766.

Location in map: