Česká geologická služba
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Ortoruly Jánský vrch

General Characteristics

County (administration): Ústí nad Labem Region
District (town): Most
Cadastre: Jezeří
Map 1 : 50 000 (sheet No): 0233, 02331
Geological region: Krušné hory Mts. crystalline complex; Karlovy Vary Massif (SW part)
Accessibility: - passable footpath
ID : 333

Geology

Short characteristics of the site: Rocky hill slope with coarse-grained metagranite affected by a slight Variscan deformation. Clear lineation of E-W direction and subhorizontal foliation. Petrologically and tectonically interesting locality.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Saxothuringicum - Krušné hory and Smrčiny crystalline complexes
Stratigraphy: proterozoikum
Subject: petrology, geology, structural geology
Geological phenomenon: frost cliff, characteristic rock
Genesis: metamorphic (general metamorphism)
Rock: orthogneiss

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

Malkovský, M. et al. (1985): Vysvětlivky k základní geologické mapě ČSSR 1 : 25 000 02-332 Most. - ÚÚG Praha.

Elaboration and Updating

Elaborated by: Mlčoch Bedřich, 09.11.94
Updated by: Plíšek Antonín 30.11.04, Mlčoch Bedřich 10.10.09

Citation

The database Significant geological localities of the Czech Republic: 333 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-20]. Available from: http:// lokality.geology.cz/333.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.


(C) 2003-2012 ČGS, verse aplikace 1.21 [3.2.2016]