Lom u bunkru - Malé Svatoňovice
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Trutnov
Village:
Velké Svatoňovice
Cadastre:
Velké Svatoňovice
Map sheets:
04-33 Náchod, 04-331 Český Kostelec
Accessibility:
no traffic restriction ( by car)
ID:
1442
Geology
Short characteristics of the site:
Rocky wall about 40 m long and 17 m high. Trutnov Formation, conglomeratic facies (Permian, Saxonian) and Cretaceous sediments (Peruc - Korycany and Bílá hora Formations). Red-brown conglomerates and breccias of the Trutnov Formation with variable percentage of bazaltandesite clasts are in the right side of the wall. These are unconformably overlain by Cenomanian sandstones and siltstones of the Peruc - Korycany Formation. Cretaceous sediments contain glaukonite admixture and organic fine matter and carbonised plant stems at the base. Basal sediments are overlain by marlstones, partly spongilitic, belonging already to Lower Turonian Bílá hora Formation. The dip of the both Permian and Cenomanian sediments is steep (max. 84° to SW) due to the close vicinity of the main line (overthrust) of the Hronov - Poříčí fault. The dip of the Turonian marlstones is lower (50°).
Regional geologic unit:
Bohemian Massif > Upper Carboniferous and Permian > Lugic Late Palaeozoicum (including Triassic deposits) > Intra-Sudetic Basin;
Bohemian Massif > Cretaceous of the Bohemian Massif > Bohemian Cretaceous Basin
Stratigraphy:
Permian, Cretaceous
Subject:
paleontology, sedimentology, structural geology, stratigraphy
Geological phenomenon:
lithological boundary, rock, cliff, slickenside, transgression, unconformity, bedding, fault, characteristic rock
Genesis:
sedimentary
Rock:
sandstone, marlstone, conglomerate
Territorial protection
Level of protection:
Registered geological localities suggested for protection
Part of national geopark:
Broumovsko
Conflicts of interests:
without conflicts
References
- Pešek J. et al. (2001): Geologie a ložiska svrchnopaleozoických limnických pánví České republiky. - Český geologický ústav, 243 s. Praha.
- ---http://www.turistika.cz/mista/geologicky-vychoz-u-malych-svatonovi
Elaboration and Updating
Elaborated by:
Vladimír Prouza, 15.01.2003
Updated by:
Prouza Vladimír, 15.05.2003, Prouza Vladimír, 29.09.2009, Gürtlerová Pavla, 13.10.2018
Citation
The database Important geological localities of the Czech Republic: 1442 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/1442.
Location in map:
Assessment
Scientifical assesment:
extraordinary
Educational assesment:
major
Significance:
national
Representativeness:
major
Geological importance:
significant study profile, geo-regional value (mapping), geoturistic value
Excursion locality:
yes
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
