General Characteristics

County (administration): Pardubice Region
District (town): Chrudim
Cadastre: Žumberk, Vížky
Map 1 : 50 000 (sheet No): 1342,1344, 13424,13442
Geological region: Oheb, Svratka and Polička crystalline complex; Železné hory Mts. Proterozoic; Hlinsko Zone; Železné hory Mts. Pluton; Chrudim Palaeozoic
Accessibility: - special entry permit necessary (military area, quarry, private land)
Technical object: guarry
Excursion locality: yes
ID : 3656

Geology

Short characteristics of the site: Active quarries with quarry walls showing interesting rocks. The fine grained biotite granite with muscovite, called the Žumberk granite prevails. Two stages of its emplacement can be recognized, the older one is represented by a tonalite with xenoliths of dioritic rocks. They are overlained by subvolcanic mantle rocks of the Lukavice Group. Their cmposition corresponds to rhyodacites with their tuffites. In places lamprofyres and pegmatite veins were found, They are accompanied by pyrite and epidote accumulations. This locality belongs to the National Geopark "Železné hory - the Iron Mountains".
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Bohemicum (Central Bohemian region) - Magmatites in Bohemicum
Stratigraphy: paleozoikum - karbon, paleozoikum - perm
Subject: economic geology, stratigraphy, geology
Geological phenomenon: intrusion, lithological boundary, horizontal section, ore mineralization, dyke
Genesis: sedimentary, magmatic
Rock: granite, metarhyolite, porphyry

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
Part of the Geopark: Železné hory
Conflicts of interests: open cast mining, 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, 08.02.13
Updated by: Rambousek Petr 14.10.13, Rambousek Petr 17.10.13, Kukal Zdeněk 08.09.17, Kukal Zdeněk 08.09.17

Citation

The database Significant geological localities of the Czech Republic: 3656 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-26]. Available from: http:// lokality.geology.cz/3656.

Location in map: