General Characteristics

County (administration): Ústí nad Labem Region
District (town): Děčín
Cadastre: Lobendava
Map 1 : 50 000 (sheet No): 0221, 02212
Geological region: Lužice Pluton and Krkonoše-Jizera Massif; Krkonoše-Jizera crystalline complex
Accessibility: - no traffic restriction ( by car)
Technical object: placer, guarry
Excursion locality: yes
ID : 2017

Geology

Short characteristics of the site: Krkonoše-Jizera crystalline. Abandoned quarries with granite porphyry. It forms 30 m thick dyke which follows E-W oriented fracture. The porphyry contains small idiomorphic quartz crystals in felsitic groundmass consisting of quartz, feldspar and chlorite. The rock is tectonically crushed and strongly silicified. Nearby small gold washing mounds occur.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Lugicum - Magmatites of Lugicum, Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary - Quaternary of denudation areas of Bohemian Massif
Stratigraphy: kadomské stáří vyvřelin, kenozoikum - kvartér
Subject: structural geology, mining and mining impacts, petrology
Geological phenomenon: dyke
Genesis: magmatic
Rock: porphyry

Territorial conservation

Level of protection: Registered geological localities suggested for protection
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Conflicts of interests: without conflicts

References

Opletal M. a kolektiv autorů, 2002: Vysvětlivky k základní geologické mapě ČR v měřítku 1 : 25 000 list 02221 Šluknov a 02212 Horní Poustevna.- Česká geologická služba Praha.

Elaboration and Updating

Elaborated by: Opletal Mojmír, Fediuk Ferry,Nývlt D., 31.12.02
Updated by: Vajskebrová Markéta 07.11.17

Citation

The database Significant geological localities of the Czech Republic: 2017 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-12-08]. Available from: http:// lokality.geology.cz/2017.

Location in map: