General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Dolní Rokytnice
Map 1 : 50 000 (sheet No): 0323, 03233
Geological region: Lužice Pluton and Krkonoše-Jizera Massif; Krkonoše-Jizera crystalline complex
Accessibility: - passable footpath
ID : 3127

Geology

Short characteristics of the site: Rocky outcrops in the Kamenice brook channel. Small waterfall and cascade overflowing fine grained biotitic up to leucocratic granite. Except of quartz this rock contains potassium feldspar, plagioclase, secondary chlorite and opaque minerals. Some accessoris, such as apatite, zircon, clinozoisite and allanite occur. This locality belongs among magmatites of the Lusatian (Lužice) Area.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Lugicum - Magmatites of Lugicum
Stratigraphy: variské (hercynské) stáří vyvřelin
Subject: lithology, geomorphology
Geological phenomenon: outcrop, waterfall
Genesis: magmatic
Rock: granite

Territorial conservation

Level of protection: Registered interesting geological localities
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Conflicts of interests: without conflicts

References

Mrázová Š., red. (2007): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 1 : 25 000 03-2333 Harrachov. Česká geologická služba. Praha

Elaboration and Updating

Elaborated by: Jirková Pavlína, 10.03.09
Updated by: Gürtlerová Pavla 28.11.17, Kukal Zdeněk 08.02.17

Citation

The database Significant geological localities of the Czech Republic: 3127 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-25]. Available from: http:// lokality.geology.cz/3127.

Location in map: