General Characteristics

County (administration): Plzeň Region
District (town): Plzeň-sever
Cadastre: Skupeč
Map 1 : 50 000 (sheet No): 1144, 11441
Geological region: Neovolcanics of the České středohoří Mts.
Accessibility: - passable footpath
Technical object: guarry
Excursion locality: yes
ID : 2487

Geology

Short characteristics of the site: Tertiary, dispersed occurrences of alkaline volcanics in Western Bohemia. Isolated elevation with abandoned shelf quarry. Only relics of larger basalt extrusion is preserved. Such an extrusion took part into water saturated environment and therefore lava spheroidal exfoliation resulted. Such rock structure was inconvenient for massive exploitation for aggregate production. Nevertheless, this well accessible locality is instructive.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: economic geology, geomorphology, petrology, volcanology
Geological phenomenon: lava, characteristic rock
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 neovulcanics.- Čas. miner. geol., 24, 1, Praha. ; Hradecký P., 1992: Tertiary volcanics in W. Bohemia.- Abstracts, Geological model of W Bohemia in rrelation to the deep borehole KTB in th FRG, MS ČGÚ Praha.

Elaboration and Updating

Elaborated by: Hradecký Petr, 18.11.93
Updated by: Kukal Zdeněk 27.12.12, Vajskebrová Markéta 22.04.21

Citation

The database Significant geological localities of the Czech Republic: 2487 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-27]. Available from: http:// lokality.geology.cz/2487.

Location in map: