General Characteristics

County (administration): South Moravia Region
District (town): Blansko
Cadastre: Němčice
Map 1 : 50 000 (sheet No): 2423, 24233
Geological region: Drahany and Mírov Culm; Moravian and Mladeč karst
Accessibility: - entry permit for car necessary
Technical object: mine, old mine workings, shaft
ID : 3930

Geology

Short characteristics of the site: Old mines where iron ores were exploited. The mine was excavated in crystalline limestone of Macocha Beds (Milddle Devonian). There are schist layers within limestones, possibly tectonically placed. Limestones are of variable texture, some of them are brecciated other microsparitic and also biosparitic. Limonite and secondary quartz accumulated in porous layers. Goethite aggregates also occur. Iron ores have been deposited during several stages, some of them also during Cretaceous. The mine bottom is flooded and serve as a groundwater reserve, This locality is situated in the Moravian Karst area.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moravosilesian region - Moravosilesian Palaeozoicum
Stratigraphy: paleozoikum - devon - střední devon
Subject: mining and mining impacts, hydrogeology, mineralogy, geology
Geological phenomenon: karst cave, ore mineralization
Genesis: sedimentary, hydrothermal mineralization
Rock: limestone

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: water resources

References

Baldík, V. et al. (2016): Vysvětlivky k základním geologickým mapám České republiky 1 : 25 000 24-233 Ostrov u Macochy. MS Archiv České geologické služby.

Elaboration and Updating

Elaborated by: Baldík Vít, 14.04.16
Updated by: Kukal Zdeněk 13.02.18

Citation

The database Significant geological localities of the Czech Republic: 3930 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-03]. Available from: http:// lokality.geology.cz/3930.

Location in map: