General Characteristics

County (administration): Pardubice Region
District (town): Chrudim
Cadastre: Javorka
Map 1 : 50 000 (sheet No): 1343, 13432
Geological region: Kutná Hora and Čáslav crystalline complexes
Accessibility: - special entry permit necessary (military area, quarry, private land)
Technical object: guarry, gallery, waste dump
ID : 3586

Geology

Short characteristics of the site: This locality belongs to the Krušná Hora Crystalline. It is formed of metamorphic rocks of a paragneiss and migmatite type. They are overlain by the Upper Cretaceous Mesozoic sediments which are represented by the Turonian marlstones and spongilitic claystones. The existence of important fault line affected an origin of hydrothermal mineral deposits with baryte and fluorite. Between 1976 and 1994 mineral fluorite was exploited and afforded interesting fluorite crystals. The mine is still accessible. The area is also of a hydrogeological interest because it offers important groundwater collectors.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Cretaceous - Czech Cretaceous Basin, Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Kutná Hora and Svratka region - Kutná Hora crystalline complex
Stratigraphy: proterozoikum - neoproterozoikum (1000 - 542 Ma), mezozoikum - křída - svrchní křída - turon - spodní turon
Subject: mineralogy, hydrogeology, mining and mining impacts
Geological phenomenon: outcrop
Genesis: metamorphic (general metamorphism)
Rock: paragneiss, marble, dolomite, opuka (aranaceous marlstone), claystone

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) - Železné hory
Part of the Geopark: Železné hory
Conflicts of interests: private property

References

DOUCEK, Jan (2012): Národní Geopark Železné hory - mapování. Závěrečná zpráva, MS Vodní zdroje Chrudim, spol. s r. o.

Elaboration and Updating

Elaborated by: Králová Anna, 29.10.12
Updated by: Kukal Zdeněk 12.09.17

Citation

The database Significant geological localities of the Czech Republic: 3586 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-29]. Available from: http:// lokality.geology.cz/3586.

Location in map: