General Characteristics

County (administration): Karlovy Vary Region
District (town): Karlovy Vary
Cadastre: Číhaná u Javorné
Map 1 : 50 000 (sheet No): 1124, 11241
Geological region: Teplá, Tachov, Smrčiny, Svatava, Cheb-Dyleň a Slavkov crystalline complexes, Thüringen - Vogtland Palaeozoic; Karlovy Vary Massif (SE part)
Accessibility: - special entry permit necessary (military area, quarry, private land)
Technical object: guarry
Excursion locality: yes
ID : 3746

Geology

Short characteristics of the site: The active quarry called "Číhaná - the Kurking Place". This quarry has been opened in a basanite body which pierces the Nejdek-Eibenstock pluton and Mariánské lázně Complex. The basanite shows typical columnar jointing and geologicallly belongs to a group of alkali volcanics of the Doupovské Hory Mts. In the bazanite there occur numerous xenolites of amphibolites and granitoids. The basanite is 16,5 Ma years old (Tertiary), as determined by K-Ar method. In the vicinity the outcrop of garnet amphibolite of the Mariánské lázně Complex occurs.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: geology, geomorphology, volcanology
Geological phenomenon: lava flow, stony organ, frost cliff, maar
Genesis: volcanic , frost weathering
Rock: basanite, breccia, amphibolite

Territorial conservation

Level of protection: Registered interesting geological localities
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Part of the Geopark: Egeria
Conflicts of interests: open cast mining, private property

References

Mlčoch ed. (2013): Vysvětlivky k mapě 1 : 25 000 list 11-241 Bochov

Elaboration and Updating

Elaborated by: Rapprich Vladislav, 10.11.13
Updated by: Kukal Zdeněk 15.09.17

Citation

The database Significant geological localities of the Czech Republic: 3746 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-19]. Available from: http:// lokality.geology.cz/3746.

Location in map: