Račice - subvulkanický ryolit
General Characteristics
County (administration):
Středočeský kraj
District (town):
Rakovník
Village:
Sýkořice
Cadastre:
Sýkořice
Map sheets:
12-32 Zdice, 12-322 Hudlice
Accessibility:
entry permit for car necessary
ID:
3892
Geology
Short characteristics of the site:
The porphyry vein within sedimentary sequence of Neoproterozoic rocks. This subvolcanic rock is formed by coarse grained porphyry with quartz and feldspar phenocrysts. Nearby carbonate water source can be found, which cements and cosolidates rhyolite scree. This locality situated in the Protected Landscape Area Křivoklátsko is recommnded for protection.
Regional geologic unit:
Bohemian Massif > Bohemicum > Barrandien
Stratigraphy:
Cambrian
Subject:
petrology, volcanology
Geological phenomenon:
characteristic rock
Genesis:
volcanic
Rock:
rhyolite
Territorial protection
Level of protection:
Registred geological localities suggested to protection in Protected landscape area
Part of LEPA (Large-size especially protected areas):
Křivoklátsko
Part of national geopark:
Barrandien
Conflicts of interests:
without conflicts
References
- Vorel, T., red. (2012): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 12-322 Hudlice. Česká geologická služba. Praha.
Elaboration and Updating
Elaborated by:
Tomáš Vorel, 15.10.2015
Updated by:
Vorel Tomáš, 05.11.2015, Kukal Zdeněk, 28.11.2017
Citation
The database Important geological localities of the Czech Republic: 3892 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3892.
Location in map:
Assessment
Scientifical assesment:
great
Educational assesment:
major
Significance:
supraregional
Representativeness:
major
Geological importance:
significant study profile, 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
