Galerie
General Characteristics
County (administration):
Liberecký kraj
District (town):
Semily
Village:
Semily
Cadastre:
Bítouchov u Semil
Map sheets:
03-32 Jablonec nad Nisou, 03-324 Turnov
Accessibility:
no traffic restriction ( by car)
ID:
2858
Geology
Short characteristics of the site:
Krkonoše-Jizera crystalline. Nature monument. Jizera River cuts through a small massif of the albite granite. Thus canyon with 40 m high rocky walls and pillars was formed. In the 19th century the gorge was artificially broadened and weir constructed as a water source for a local power station.
Regional geologic unit:
Bohemian Massif > Lugicum > -Krkonoše-Jizerské hory Mts. crystalline complex > Železný Brod crystalline complex
Stratigraphy:
Paleozoic
Subject:
geomorphology, structural geology, petrology
Geological phenomenon:
cliff, gorge
Genesis:
magmatic, metamorphic (general metamorphism), volcanic
Rock:
granite, greenschist, alkali-feldspar-trachyandesite, metagranitoid
Territorial protection
Level of protection:
Nature reserve
Additional information:
See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR, code 471 (Údolí Jizery)
Part of national geopark:
Bohemian Paradise
Conflicts of interests:
without conflicts
References
- Mackovčin P., Sedláček M. a Kuncová J. (2002): Chráněná území ČR - Liberecko, Svazek III. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, Praha, 331 s..
- Rapprich et al. 2011: Základní geologická mapa České republiky 03-324. Turnov. Česká geologická služba. (s textovými vysvětlivkami).
- Patočka, F., Fajst, M. & Kachlík, V., 2000. Mafic-felsic to mafic-ultramafic Early Palaeozoic magmatism of the West Sudetes (NE Bohemian Massif): the South Krkonoše Complex. Z. geol. Wiss., 28((1/2)), 177-210.
- Fediuk, F., 1962. Vulkanity železnobrodského krystalinika. Rozpr. Ústř. Úst. geol.,, 29, 116.
Elaboration and Updating
Elaborated by:
Markéta Lorencová, 23.11.2007
Updated by:
Mrázová Štěpánka, 27.10.2009, Kachlík Václav, 19.01.2012, Kukal Zdeněk, 04.12.2017
Citation
The database Important geological localities of the Czech Republic: 2858 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/2858.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
supraregional
Representativeness:
middle
Geological importance:
geo-regional value (mapping), geoturistic value
Excursion locality:
yes
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
