Lhota u Žiliny
General Characteristics
County (administration):
Středočeský kraj
District (town):
Kladno
Village:
Lhota
Cadastre:
Lhota u Kamenných Žehrovic
Map sheets:
12-23 Kladno, 12-233 Unhošť
Accessibility:
access without footpath
ID:
3779
Geology
Short characteristics of the site:
The locality is represented by morphologically prominent ridge with small surrounding outcrops. It belogs to the Barrandian area and stratigraphically to the Upper Cambrian of the Příbram-Jince Basin. A series of small abandoned quarries exposes subvolcanic massive grey up to pink rhyolite. Porphyric texture with some quartz phenocrysts is typical for this rock. Fine grained ground mass consists a a mixture of quartz feldspars, muscovite and sericite.
This rhyolite was formerly quarried and utilized for buildng purposes.
Regional geologic unit:
Bohemian Massif > Bohemicum > Barrandien > Příbram - Jince Basin
Stratigraphy:
Upper Cambrian
Subject:
geology, geomorphology, volcanology
Geological phenomenon:
characteristic rock, rock bag
Genesis:
volcanic
Rock:
rhyolite
Territorial protection
Level of protection:
Interesting geological localities in Protected landscape area
Part of LEPA (Large-size especially protected areas):
Křivoklátsko
Conflicts of interests:
forestry, vegetation
References
- M.Stárková et al. (2014): Vysvětlivky ke geologické mapě 12-233 list Unhošť. - MS Archív ČGS Praha.
- TOULA, J. (1969): Závěrečná zpráva kladensko, surovina: kámen. – MS Čes. geol. služba – Geofond. Praha.
- Vidal et al. (1975):Radiometric age of volcanics of the Cambrian Křivoklát-Rokycany complex (Bohemian Massif). Geol. Rundsch. 64, 2, 563–570.
- ŽÁK, J. – KRAFT, P. – HAJNÁ, J. (2013): Timing, styles, and kinematics of Cambro–Ordovician extension in the Teplá–Barrandian unit, Bohemian Massif, and its bearing on the opening of the Rheic Ocean. – International Journal of Earth Sciences, 102: 415–433.
- Drost et al. (2004):New data on the Neoproterozoic–Cambrian geotectonic setting of the Teplá–Barrandian volcanosedimentary successions: geochemistry, U–Pb zircon ages, and provenance (Bohemian Massif, Czech Republic). – Int. J. Earth. Sci. 93: 742–757
Elaboration and Updating
Elaborated by:
Marcela Stárková, 22.08.2014
Updated by:
Gürtlerová Pavla, 21.10.2015
Citation
The database Important geological localities of the Czech Republic: 3779 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3779.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
supraregional
Representativeness:
middle
Geological importance:
geo-historical value, geo-regional value (mapping)
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
