Čertovy díry
General Characteristics
County (administration):
Kraj Vysočina
District (town):
Havlíčkův Brod
Village:
Hněvkovice
Cadastre:
Budeč nad Želivkou
Map sheets:
23-12 Ledeč nad Sázavou, 23-122 Ledeč n.S.
Accessibility:
special entry permit necessary (military area, quarry, private land)
ID:
959
Geology
Short characteristics of the site:
Outcrops on a river bank. Two karst caverns in a lens of crystalline limestones and dolomites. They belong to the Varied Ledeč Group and occur within sillimanite-biotite paragneisses of the Bohemian Moldanubicum. The caves are without speleothemes, only with erosion features.
Regional geologic unit:
Bohemian Massif > Moldanubicum > Metamorphic units in Moldanubicum
Stratigraphy:
Proterozoic
Subject:
petrology, geomorphology
Geological phenomenon:
karst, karst cave, outcrop
Genesis:
aquatic (water activity), metamorphic (general metamorphism)
Rock:
marble, dolomite, paragneiss
Territorial protection
Level of protection:
Registered interesting geological localities
Part of national geopark:
Kraj blanických rytířů
Conflicts of interests:
water resources
References
- Homola V./1952/: Krasové zjevy v krystalických vápencích v okolí Ledče n.Sázavou.-Český kras,192-197.Praha.
Elaboration and Updating
Elaborated by:
Petr Štěpánek, 14.11.1994
Updated by:
Štěpánek Petr, 13.09.2010
Citation
The database Important geological localities of the Czech Republic: 959 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/959.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
regional
Representativeness:
middle
Geological importance:
significant study profile, geo-regional value (mapping)
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz