Holedná
General Characteristics
County (administration):
Jihomoravský kraj
District (town):
Brno-město
Village:
Brno
Cadastre:
Jundrov
Map sheets:
24-32 Brno, 24-324 Brno sever
Accessibility:
access without footpath
ID:
3301
Geology
Short characteristics of the site:
Brno Massif, diorite zone. Road cut exposing ultramafic and ultrabasic rocks. Serpentinized ultrabasic rocks with chlorite aggregates with traces of banding. Diorite with xenoliths of surrounding rocks penetrated into ultramafic rocks. Serpentinites, except of serpentine, locally contain clinopyroxene, tremolite, carbonates, talk and phloogopite. Relics of olivine can be found. All rocks are affected by minor faults.
Regional geologic unit:
Bohemian Massif > Moravosilesian region > Brunovistulicum > Brno Massif > Brno Massif - Diorite Zone
Stratigraphy:
Neoproterozoic
Subject:
geology, petrology
Geological phenomenon:
rock
Genesis:
metamorphic (general metamorphism)
Rock:
serpentine
Territorial protection
Level of protection:
Registered interesting geological localities
Conflicts of interests:
without conflicts, tourism
References
- Hanžl P. et al., 2011: Vysvětlivky k základní geologické mapě ČR v měřítku 1 : 25 000 list 24324, Brno sever.- Český geologický ústav Prah
Elaboration and Updating
Elaborated by:
Tomáš Pecka, 02.06.2011
Updated by:
Hanžl Pavel, 10.06.2011, Gürtlerová Pavla, 27.09.2012
Citation
The database Important geological localities of the Czech Republic: 3301 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3301.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
regional
Representativeness:
middle
Geological importance:
geo-regional value (mapping), geoturistic value
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
