Velký, Střední a Malý Špičák
General Characteristics
County (administration):
Ústecký kraj
District (town):
Chomutov
Village:
Kryštofovy Hamry
Cadastre:
Černý Potok
Map sheets:
01-44 Vejprty, 01-443 Kovářská
Accessibility:
no traffic restriction ( by car)
ID:
322
Geology
Short characteristics of the site:
Three peaks of a summit area expose three occurrences of neovolcanite intrusions consisting of a nephelinite. Their superficial position evidences very intetensive erosion. Columnar jointing of rock. Also interesting tectonic features. Reference locality, indicating a geological development of Krušné Hory Mts.
Regional geologic unit:
Bohemian Massif > Tertiary > Tertiary - scaterred relics of alkaline Volcanics
Stratigraphy:
Tertiary
Subject:
volcanology, structural geology, petrology
Geological phenomenon:
lava, characteristic rock
Genesis:
volcanic
Rock:
basaltoid (basaltic-rock), trachyte, nephelinite
Territorial protection
Level of protection:
Registered geological localities suggested for protection
Conflicts of interests:
private property
References
- Shrbený, O. (1980): Chemical composition of alkaline neovolcanics of the Krušné hory Mts., Bohemia. - Věst. Ůstř. úst. geol., 55, 1-10. Praha
- Mlčoch B. a kolektiv autorů, 1994: Geologicky významné lokality v severočeské pánvi a jejím okolí, chráněné nebo navrhované k ochraně.- Český geologický ústav Praha
Elaboration and Updating
Elaborated by:
Vladimír Cajz, 11.02.1994
Updated by:
Plíšek Antonín, 24.11.2004, Mlčoch Bedřich, 07.10.2009, Mlčoch Bedřich, 08.10.2009
Citation
The database Important geological localities of the Czech Republic: 322 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/322.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
major
Significance:
regional
Representativeness:
middle
Geological importance:
geo-regional value (mapping), geoturistic value
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
