Hlavno

General Characteristics

County (administration): Karlovarský kraj
District (town): Sokolov
Village: Citice
Cadastre: Citice, Hlavno
Map sheets: 11-14 Cheb, 11-142 Sokolov
Technical object: guarry
ID: 2521


Geology

Short characteristics of the site: An abandoned quarry at Hlavno, opened in a lava flow of olivine nephelinite stratigraphically corresponding to the Nové Sedlo Formation at the Oligocene/Miocene boundary, paleomagnetic age ca. 23.5 mil. years. The rock shows a thickly columnar jointing.
Regional geologic unit: Bohemian Massif > Tertiary > Basins under Krušné hory Mts.and adjoining volcanic uplands > Doupov Volcanic complex
Stratigraphy: Tertiary
Subject: volcanology, petrology, stratigraphy
Geological phenomenon:
Genesis:
Rock:


Territorial protection

Level of protection: Registered interesting geological localities
Part of national geopark: Egeria
Conflicts of interests: without conflicts


References
  • Laube, G.C. (1876): Geologie des böhmischen Erzgebirges, I., Prag. Fediuk, F. - Kužvart, M. (1956): Zpráva o geol. mapování krystalinického hřbetu mezi sokolovskou a chebskou pánví. - Zpr. geol. výzk. 1955, 32-34, Praha. Fiala, F. (1963): Zpráva o výzkumu krystalinika u Kynšperku, Chlumu a Šabiny. - Zpr. geol. výzk. 1962, 13-15, Praha

Elaboration and Updating

Elaborated by: Petr Rojík, 14.03.2006
Updated by:


Citation

The database Important geological localities of the Czech Republic: 2521 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/2521.


Location in map:

Assessment

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Significance:
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You can send information about a change in the status of the site to lokality@geology.cz


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