General Characteristics

County (administration): Vysočina Region
District (town): Jihlava
Cadastre: Rohozná u Jihlavy
Map 1 : 50 000 (sheet No): 2323, 23233
Geological region: Moldanubian Pluton - Central Massif; Melechov Massif
Accessibility: - passable footpath
ID : 961

Geology

Short characteristics of the site: Rock ridge formed of a coarse-grained two-mica granite of the Moldanubian pluton. Granite massif is cut by horizontal joints. Some fissure caverns are observable. Interesting morphological features, as cryoplanational plains and felsenmeer. This locality is registered as a Nature Monument.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moldanubicum - Magmatites in Moldanubicum, Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary - Quaternary of denudation areas of Bohemian Massif
Stratigraphy: variské (hercynské) stáří vyvřelin, kenozoikum - kvartér
Subject: geology, geomorphology, petrology
Geological phenomenon: pseudocrast cave, mushroom rock, rock arch, rock chimney, weather pit, honeycombs, block field
Genesis: frost weathering, magmatic
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)
Conflicts of interests: tourism

References

Tauber O.(1987): Periglaciální jevy jihozápadní části Českomoravské vrchoviny. Vlastiv.Sbor.Vys.,odd.přír., 7-91.Jihlava.; Vávra, V., Štelcl, J. a Malý, K. (2008): Průvodce po geologických zajímavostech Kraje Vysočina, Muzeum Vysočiny Jihlava, 145 stran, ISBN 978-80-86382-12-8.

Elaboration and Updating

Elaborated by: Hanžl Pavel, Pertoldová Jaroslava, 25.01.02
Updated by: Plíšek Antonín 27.01.03, Gürtlerová Pavla 13.10.10, Kukal Zdeněk 20.11.17

Citation

The database Significant geological localities of the Czech Republic: 961 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-04]. Available from: http:// lokality.geology.cz/961.

Location in map: