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Jezírka

General Characteristics

County (administration): Central Bohemia Region
District (town): Rakovník
Cadastre: Podmokly, Skryje nad Berounkou
Map 1 : 50 000 (sheet No): 1232, 12323
Geological region: Barrandien Palaeozoic; Blanice Furrow
Accessibility: - passable footpath
Excursion locality: yes
ID : 1158

Geology

Short characteristics of the site: Romantic gorge of the stream. On its walls there are many outcrops of the volcanites o the Křivoklát-Rokycany volcanic belt. Dark fine-grained dacites occur here which belong to the oldest phase of this Cambrian volcanic activity.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Barrandien
Stratigraphy: paleozoikum - kambrium - svrchní kambrium
Subject: volcanology, geomorphology, petrology, stratigraphy, paleontology
Geological phenomenon: cliff
Genesis: volcanic , metamorphic (general metamorphism)
Rock: dacite, slate, schist

Territorial conservation

Level of protection: Nature reserve in Protected landscape area
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area: (declared as Geological and Biological Locality)
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Křivoklátsko
Part of the Geopark: Joachim Barrand Geopark (candidate National G)
Conflicts of interests: without conflicts, collection

References

Waldhausrová J. (1966): The volcanites of the Křivoklát-Rokycany zone.- Paleovolcanites of the Bohemian Massif, 145-151, Praha Waldhausrová J. (1971): The chemistry of the Cambrian volcanics in the Barrandian area.- Krystalinikum, 8, 45-75, Praha Chlupáč I. (1999): Vycházky za geologickou minulostí Prahy a okolí.- Academia Praha; Zahradnický J., Mackovčin P. a kol.(2005): Plzeňsko a Karlovarsko. In: Mackovčin P. a Sedláček M.(eds.): Chráněná území ČR, svazek XI. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, str, Praha.

Elaboration and Updating

Elaborated by: Mašek Jan, 03.07.01
Updated by: Steinová Marika 24.09.09, Žáčková Eliška 02.09.10, Hradecký Petr 20.04.14

Citation

The database Significant geological localities of the Czech Republic: 1158 [online]. Prague: Czech Geological Survey, 1998 [cit. 2020-09-24]. Available from: http:// lokality.geology.cz/1158.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Malebné skalní stěny a prahy tvořené vulkanity křivoklátsko-rokycanského pásma., Motyčková Kamila - Šír Jiří, 2015
Malý vodopád ve vulkanitech na Zbirožském potoku, Petr Čoupek, 2009
Malý vodopád ve vulkanitech na Zbirožském potoku, Petr Čoupek, 2009
Malý vodopád ve vulkanitech na Zbirožském potoku, Petr Čoupek, 2009
Malý vodopád ve vulkanitech na Zbirožském potoku, Petr Čoupek, 2009
Malý vodopád ve vulkanitech na Zbirožském potoku, Petr Čoupek, 2009
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