Cholunná
General Characteristics
County (administration):
Kraj Vysočina
District (town):
Pelhřimov
Village:
Žirovnice
Cadastre:
Cholunná
Map sheets:
23-32 Kamenice nad Lipou, 23-324 Žirovnice
Accessibility:
passable footpath
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 > Moldanubicum > Magmatites in Moldanubicum > Moldanubien Pluton > Moldanubian Batholith
Stratigraphy:
Devonian - Permian
Subject:
geology, lithology, structural geology
Geological phenomenon:
characteristic rock, deformation fabrics
Genesis:
metamorphic (general metamorphism)
Rock:
migmatite, granite
Territorial protection
Level of protection:
Registered interesting geological localities
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:
Radmila Nahodilová, 26.02.2016
Updated by:
Kukal Zdeněk, 27.09.2017
Citation
The database Important geological localities of the Czech Republic: 3910 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3910.
Location in map:
Assessment
Scientifical assesment:
great
Educational assesment:
major
Significance:
regional
Representativeness:
major
Geological importance:
geo-regional value (mapping)
Excursion locality:
yes
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
