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Ortoruly nad úd.nádrží Janov

General Characteristics

County (administration): Ústí nad Labem Region
District (town): Most
Cadastre: Lounice
Map 1 : 50 000 (sheet No): 0231, 02314
Geological region: Krušné hory Mts. crystalline complex; Karlovy Vary Massif (SW part)
Accessibility: - entry permit for car necessary
ID : 876


Short characteristics of the site: Natural outcrops with medium-grained muscovite-biotite orthogneiss. It is schistose and subhorizontally foliated. Orthogneiss passes into a medium-grained muscovite-biotite metagranite. Petrologicallly interesting locality.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Saxothuringicum - Krušné hory and Smrčiny crystalline complexes
Stratigraphy: proterozoikum
Subject: petrology, structural geology
Geological phenomenon: outcrop
Genesis: metamorphic (general metamorphism)
Rock: orthogneiss

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
Conflicts of interests: without conflicts


Mlčoch, B. et al. (1990): Vysvětlivky k základní geologické mapě ČSSR 1 : 25 000 02-314 Litvínov. - ÚÚG Praha. Scheumann, K. (1932): Uber die petrogenetische Ableitung des roten Erzgebirgsgneises. - Tschermaks mineral. petrogr. Mitt., 42, 414-454. Wien.

Elaboration and Updating

Elaborated by: Mlčoch Bedřich, 09.11.94


The database Significant geological localities of the Czech Republic: 876 [online]. Prague: Czech Geological Survey, 1998 [cit. 2020-08-07]. Available from: http:// lokality.geology.cz/876.

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]