pískovna Rozhraní
General Characteristics
County (administration):
Pardubický kraj
District (town):
Svitavy
Village:
Rozhraní
Cadastre:
Bradlné
Map sheets:
24-12 Letovice, 24-124 Letovice
Technical object:
sand pit
ID:
2594
Geology
Short characteristics of the site:
Marine Upper Cenomanian sandstones (Korycany Member)in the SE part of the Bohemian Cretaceous Basin in the vicinity of Letovice north of Brno contain spherical Fe-concretions mainly 10-20 cms in diameter. The spherical bodies are of hypergenic origin. The source of Fe was the weathering of glauconite.
Regional geologic unit:
Bohemian Massif > Cretaceous of the Bohemian Massif > Bohemian Cretaceous Basin > Bohemian Cretaceous Basin
Stratigraphy:
Cenomanian
Subject:
geology, stratigraphy, sedimentology, petrology, structural geology
Geological phenomenon:
Genesis:
Rock:
Territorial protection
Level of protection:
Registered interesting geological localities
Conflicts of interests:
ground instability
References
- Zelenka, P. - Šrámek, J. (1997): Železité konkrece v křídových pískovcích na Letovicku. - Acta Mus. Moraviae, Sci. nat., 81/1996, 85 - 91. Brno.
Elaboration and Updating
Elaborated by:
Přemysl Zelenka, 11.12.2006
Updated by:
Citation
The database Important geological localities of the Czech Republic: 2594 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/2594.
Location in map:
Assessment
Scientifical assesment:
Educational assesment:
Significance:
Representativeness:
Geological importance:
Excursion locality:
yes
Locality conditions:
You can send information about a change in the status of the site to lokality@geology.cz
