General Characteristics

County (administration): Liberec Region
District (town): Liberec
Cadastre: Bílý Potok pod Smrkem
Map 1 : 50 000 (sheet No): 0314, 03142
Geological region: Lužice Pluton and Krkonoše-Jizera Massif; Krkonoše-Jizera crystalline complex
Accessibility: - no traffic restriction ( by bus)
Excursion locality: yes
ID : 3574

Geology

Short characteristics of the site: This locality embrases a Smědá River channel together with its beaches. The rocks are represented by porphyric biotite granite, intensively tectonicallly affected. This biotite granite is of so called "Jizera Type". It contains small xenoliths of contactly metamorphosed phylites. In mentioned granite paralelly oriented feldspar crystals are remarkable. This locality belongs to the Krkonoše-Jizera Massif.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Lugicum - Magmatites of Lugicum
Stratigraphy: variské (hercynské) stáří vyvřelin
Subject: structural geology
Geological phenomenon: river channel, deformation fabrics
Genesis: magmatic, tectonic
Rock: granite

Territorial conservation

Level of protection: Interesting geological localities in Protected landscape area
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Jizerské hory
Conflicts of interests: without conflicts

References

Mrázová Š. , Verner. K., red. (2012): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-142 Hejnice a 03-231 Jizerka. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Mrázová Štěpánka, 06.09.12
Updated by: Verner Kryštof 21.05.13, Kukal Zdeněk 18.09.17

Citation

The database Significant geological localities of the Czech Republic: 3574 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-03]. Available from: http:// lokality.geology.cz/3574.

Location in map: