Trnůvka, brněnský křemenný val
General Characteristics
County (administration):
Jihomoravský kraj
District (town):
Brno-město
Village:
Brno
Cadastre:
Kníničky
Map sheets:
24-32 Brno, 24-323 Veverská Bitýška
Accessibility:
access without footpath
ID:
3778
Geology
Short characteristics of the site:
This locality is typical with its quartz dyke, called also the Brno . Quartz Lode. This dyke was formed due to tectonic movements. It is about one kilometre long and splits into two branches. According to fluid inclusion analysis the origin of quartz dyke took place under temperatures between 170 and 300 degrees Centigrade. This locality belongs to the Brno Massif and its westermn granodiorite area.
Regional geologic unit:
Bohemian Massif > Moravosilesian region > Brunovistulicum > Brno Massif > Brno Massif - Western Granitoid Complex
Stratigraphy:
Neoproterozoic
Subject:
geology, petrology
Geological phenomenon:
vein
Genesis:
magmatic, tectonic, chemogenetic
Rock:
quartz vein
Territorial protection
Level of protection:
Registered interesting geological localities
Conflicts of interests:
without conflicts
References
- PŘICHYSTAL, A. - SLOBODNÍK M.: Brněnský křemenný val. Geologické výzkumy na Moravě a ve Slezsku, Brno: Masarykova univerzita, 2011, XVIII, č. 2, s. 178-152. ISSN 1212-6209
Elaboration and Updating
Elaborated by:
Kristýna Hrdličková, 23.05.2014
Updated by:
Kukal Zdeněk, 19.09.2017, Kukal Zdeněk, 29.11.2017
Citation
The database Important geological localities of the Czech Republic: 3778 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3778.
Location in map:
Assessment
Scientifical assesment:
minor
Educational assesment:
minor
Significance:
regional
Representativeness:
major
Geological importance:
geo-regional value (mapping), geoturistic value
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
