General Characteristics

County (administration): Hradec Králové Region
District (town): Trutnov
Cadastre: Rudník - Javorník v Krkonoších
Map 1 : 50 000 (sheet No): 0342, 03423
Geological region: Lužice Pluton and Krkonoše-Jizera Massif; Krkonoše-Jizera crystalline complex
Accessibility: - passable footpath
Technical object: old mine workings, collapse sink, prospection hole, placer
ID : 3470

Geology

Short characteristics of the site: Palaeozoic of the Krkonoše-Jizera Crystalline Complex. Old mining workings. They can be traced along fracture zone. Gold was possibly deposited from low-temperature fluids. Small outcrops expose interesting alkaline feldspar-hornblende syenite, Th- U- and K-rich. Its occurrence corresponds with gamma-spectrometric anomaly.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Lugicum - Krkonoše-Jizerské hory Mts.crystalline complex
Stratigraphy: paleozoikum
Subject: geology, structural geology, economic geology, archeology, mining and mining impacts, mineralogy, petrology
Geological phenomenon: ore mineralization, fault
Genesis: metamorphic (general metamorphism), magmatic, hydrothermal mineralization, anthropogenic (anthropogenic activity)
Rock: syenite, mica schist

Territorial conservation

Level of protection: Interesting geological localities in National park
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

Martínek, K. ed. (2012): Vysvětlivky k základní geologické mapě České republiky 1:25 000, list Svoboda nad Úpou 03-423.

Elaboration and Updating

Elaborated by: Martínek Karel, 08.03.12
Updated by: Kukal Zdeněk 26.11.12, Martínek Karel 14.02.13

Citation

The database Significant geological localities of the Czech Republic: 3470 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-23]. Available from: http:// lokality.geology.cz/3470.

Location in map: