Železný Brod - zářez silnice

General Characteristics

County (administration): Liberecký kraj
District (town): Jablonec nad Nisou
Village: Železný Brod
Cadastre: Železný Brod
Map sheets: 03-32 Jablonec nad Nisou, 03-324 Turnov
Accessibility: no traffic restriction ( by car)
ID: 3368


Geology

Short characteristics of the site: The metaarkoses and metagraywackes of the Železný Brod Crystalline Unit crop out in the roadcut at the western margin of the town Železný Brod. The arcoses were ascertained as kaledonian mollasse by Kodym and Svoboda (1948). According to resent investigations they represent a several meter thic member within sericite phyllies with graphitic admixture. At his locallity wihtin arcosic matrix occur up do dm scale clasts of dark silicified phyllitized shales, cm scale clas forms lydites, quartz, K-feldspar and partly also albitized plagioclases.
Regional geologic unit: Bohemian Massif > Lugicum > -Krkonoše-Jizerské hory Mts. crystalline complex > Železný Brod crystalline complex
Stratigraphy: Paleozoic
Subject: sedimentology, lithology, structural geology
Geological phenomenon: outcrop
Genesis: metamorphic (general metamorphism)
Rock: metagraywacke, wacke, arkose


Territorial protection

Level of protection: Interesting geological localities in Protected landscape area
Part of LEPA (Large-size especially protected areas): Český ráj
Part of national geopark: Bohemian Paradise
Conflicts of interests: without conflicts


References
  • Rapprich, V., red. (2011): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-324 Turnov. - Česká geologická služba. Praha.` Kodym, O. & Svoboda, J., 1948. Kaledonská příkrovová stavba Krkonoš a Jizerských hor. Sbor. Stát. geol. Úst., 53, 357-366

Elaboration and Updating

Elaborated by: Vladislav Rapprich, 21.11.2011
Updated by: Gürtlerová Pavla, 08.01.2012, Kachlík Václav, 17.01.2012


Citation

The database Important geological localities of the Czech Republic: 3368 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3368.


Location in map:

Assessment

Scientifical assesment: medium
Educational assesment: middle
Significance: regional
Representativeness: middle
Geological importance: significant study profile, geo-regional value (mapping)
Excursion locality: yes
Locality conditions: acceptable

You can send information about a change in the status of the site to lokality@geology.cz


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