Střezina - skalní defilé
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Náchod
Village:
Hronov
Cadastre:
Žabokrky
Map sheets:
04-33 Náchod, 04-332 Hronov
Accessibility:
no traffic restriction ( by car)
ID:
303
Geology
Short characteristics of the site:
Approx. 70 m long outcrop at the road to Střezina settlement. Brown to greenish grey mudstone with interbeds of grey sandstones and coarse grained feldspathic sandstones. Two key horizons crop here out: Vítovy doly Horizon with grey and greenish grey siltstones, mudstones and a thin (20 cm) coal seam with high content of ash and a horizon with carbonatic concretions. Some fossil plant leaves have been found here. - Jívka Member of Odolov Formation (Barruelian - Stephan B).
Regional geologic unit:
Bohemian Massif > Upper Carboniferous and Permian > Lugic Late Palaeozoicum (including Triassic deposits) > Intra-Sudetic Basin
Stratigraphy:
Carboniferous
Subject:
stratigraphy, sedimentology
Geological phenomenon:
characteristic rock
Genesis:
sedimentary
Rock:
siltstone
Territorial protection
Level of protection:
Interesting geological localities in Protected landscape area
Part of LEPA (Large-size especially protected areas):
Broumovsko
Part of national geopark:
Broumovsko
Conflicts of interests:
road construction, ground instability, vegetation
References
- Havlena V.(1956): K biostratigrafii a k charakteru kamenného uhlí stefanských vrstev v okolí Hronova.-Věst.Ústř.úst.geol., 31. Praha.
- Tásler R. et al.(1963): Závěrečná zpráva o základním geol. výzkumu jz. křídla vnitrosudetské pánve.-MS Archív ČGÚ. Praha.
- Tásler R. et al.(1979): Geologie české části vnitrosudetské pánve.-Ústř.úst.geol. Praha
Elaboration and Updating
Elaborated by:
Radko Tásler, 31.12.1994
Updated by:
Prouza Vladimír, 21.03.2003, Gürtlerová Pavla, 15.05.2018
Citation
The database Important geological localities of the Czech Republic: 303 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/303.
Location in map:
Assessment
Scientifical assesment:
extraordinary
Educational assesment:
major
Significance:
supraregional
Representativeness:
minor
Geological importance:
Locality conditions:
poor
You can send information about a change in the status of the site to lokality@geology.cz
