Prosečné sever - kalenský obzor
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Trutnov
Village:
Prosečné
Cadastre:
Prosečné
Map sheets:
03-42 Trutnov, 03-423 Svobodna n.Ú.
Accessibility:
no traffic restriction ( by car)
ID:
3474
Geology
Short characteristics of the site:
Krkonoše Piedmont Basin, Lower Rotliegend (Autunian), Kalná member. Road cut exposes 10 m thick section of the Kalná member in its northernmost occurence. Reddish siltstones and sandstones on the base, overlain by variegated lacustrine limestones and marlstones. Lamination is common, in some parts ripple marks and mud cracks can be observed. Abundant coprolites in limestones. Sediments were deposited in a shallow ephemeral lake (Blecha et al. 1999).
Regional geologic unit:
Bohemian Massif > Upper Carboniferous and Permian > Lugic Late Palaeozoicum (including Triassic deposits) > Basin under Krušné hory Mts.
Stratigraphy:
Lower Rotliegendian
Subject:
geology, stratigraphy, sedimentology, paleontology
Geological phenomenon:
mudcracks, ripple marks, ichnofossil, fossils fauna
Genesis:
sedimentary
Rock:
limestone, marlstone, siltstone, sandstone, claystone
Territorial protection
Level of protection:
Registered geological localities suggested for protection
Conflicts of interests:
without conflicts
References
- BLECHA, M., MARTÍNEK K. & MIHALJEVIČ M. 1999. Sedimentary and geochemical record of the ancient Kalná Lake, Lower Permian, Krkonoše Piedmont Basin, Czech Republic. Acta Universitatis Carolinae 43(4), 657 – 665.
- Martínek, K. ed. (2012): Vysvětlivky k základní geologické mapě České republiky 1:25 000, list Svoboda nad Úpou 03-423
Elaboration and Updating
Elaborated by:
Karel Martínek, 08.03.2012
Updated by:
Kukal Zdeněk, 26.11.2012, Martínek Karel, 14.02.2013
Citation
The database Important geological localities of the Czech Republic: 3474 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3474.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
supraregional
Representativeness:
middle
Geological importance:
significant study profile, geo-regional value (mapping)
Excursion locality:
yes
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
