General Characteristics

County (administration): Vysočina Region
District (town): Pelhřimov
Cadastre: Cholunná
Map 1 : 50 000 (sheet No): 2332, 23324
Geological region: Bohemian Moldanubicum
Accessibility: - passable footpath
Excursion locality: yes
ID : 3910

Geology

Short characteristics of the site: The group of giant rock bouilders in a forest. The rock consists of sillimanite-biotite-cordierite migmatite.Its original structure was changed by intensive partial melting. Lenses of restite rich in biotite lie in a granite looking rock which contains feldspars, biotite and cordierite, sillimanite, ilmenite and spinel. Axccessories are represented by rutile, apatite, zircon and turmaline. This locality belongs to the Central Moldanubian Massif.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moldanubicum - Magmatites in Moldanubicum
Stratigraphy: variské (hercynské) stáří vyvřelin
Subject: geology, lithology, structural geology
Geological phenomenon: characteristic rock, deformation fabrics
Genesis: metamorphic (general metamorphism)
Rock: migmatite, granite

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

References

Pertoldová. a kol. (2015): Vysvětlivky k základní geologické mapě České republiky 1:25 000 23–324 Žirovnice. – MS Česká geologická služba, Praha.

Elaboration and Updating

Elaborated by: Nahodilová Radmila, 26.02.16
Updated by: Kukal Zdeněk 27.09.17

Citation

The database Significant geological localities of the Czech Republic: 3910 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-04]. Available from: http:// lokality.geology.cz/3910.

Location in map: