General Characteristics

County (administration): Karlovy Vary Region
District (town): Karlovy Vary
Cadastre: Potůčky
Map 1 : 50 000 (sheet No): 0143, 01433
Geological region: Krušné hory Mts. crystalline complex; Karlovy Vary Massif (SW part)
Accessibility: - access without footpath
Technical object: incrush, cave-in, mine
Excursion locality: yes
ID : 315

Geology

Short characteristics of the site: Narrow subsidence depression left after old mining of tin ores. Greisenisation and Sn-mineralization of a Blatno granite can be observed. Due to favourable climatic conditions snow and ice rest on the hole bottom until summer months.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Saxothuringicum - Krušné hory Mts. Pluton
Stratigraphy: variské (hercynské) stáří vyvřelin
Subject: mining and mining impacts, petrology, mineralogy, geology
Geological phenomenon: gully, pseudocrast cave
Genesis: anthropogenic (anthropogenic activity)
Rock: granite

Territorial conservation

Level of protection: Nature monument
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area: (declared as Geological and Biological Locality)
Part of the Geopark: Egeria
Conflicts of interests: without conflicts

References

Astor, E. (1992): Erzgebirge. Meyers Naturführer. - Meyers Lexikonverlag. - Mannheim - Leipzig - Wien - Zürich, 166 str. Mašek, M. (1984): Naučná stezka Horní Blatná - Vlčí jámy. - ONV Karlovy Vary.

Elaboration and Updating

Elaborated by: Schovánek Pavel, 11.11.94
Updated by: Mlčoch Bedřich 07.10.09

Citation

The database Significant geological localities of the Czech Republic: 315 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-12-08]. Available from: http:// lokality.geology.cz/315.

Location in map: