General Characteristics

County (administration): Plzeň Region
District (town): Tachov
Cadastre: Kříženec
Map 1 : 50 000 (sheet No): 1141, 11413
Geological region: Teplá, Tachov, Smrčiny, Svatava, Cheb-Dyleň a Slavkov crystalline complexes, Thüringen - Vogtland Palaeozoic; Karlovy Vary Massif (SE part)
Accessibility: - passable footpath
Technical object: guarry
ID : 368

Geology

Short characteristics of the site: Abandoned quarry. Outcrop of relics of lava flows. Oligocene age was determined. Volcanic rocks consist of an olivinic basalt with rhonite. Basalts are in places weathered into a loamy matter. Petrologically and volcanologically very interesting locality.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: volcanology, petrology, geomorphology
Geological phenomenon: lava flow
Genesis: volcanic
Rock: basalt

Territorial conservation

Level of protection: Registered geological localities suggested for protection
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Conflicts of interests: without conflicts

References

Shrbený, O. (1979): Geochemistry of the West Bohemian neovolcanics. - Čas. mineral. geol., 24, 1. Praha. Hradecký, P. (1992): Tertiary volcanics in W. Bohemia. - Abstracts, geological model of W. Bohemia in relation to the deep borehole KTB in the FRG. MS ČGÚ Praha.

Elaboration and Updating

Elaborated by: Hradecký Petr, 18.11.93
Updated by: Gürtlerová Pavla 01.08.10

Citation

The database Significant geological localities of the Czech Republic: 368 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-01]. Available from: http:// lokality.geology.cz/368.

Location in map: