Železniční zářez u Ploužnice - Kyje

General Characteristics

County (administration): Liberecký kraj, Královéhradecký kraj
District (town): Semily, Jičín
Village: Kyje, Lomnice nad Popelkou, Bradlecká Lhota
Cadastre: Ploužnice pod Táborem, Kyje u Jičína, Bradlecká Lhota
Map sheets: 03-43 Jičín, 03-431 Lomnice p.P.
Accessibility: passable footpath
ID: 289


Geology

Short characteristics of the site: Approx. +120 m long outcrop in railway cut between railway stations Kyje and Ploužnice. The upper layer of Ploužnice Horizon is exposed here in typical development: variegated clayey mudstones, claystones and siltstones with limestone and tuffaceous interbeds and locally present cherty nodules (mostly reddish = carnelians, some grey). Fossil plant and animal remains have been found locally.
Regional geologic unit: Bohemian Massif > Upper Carboniferous and Permian > Lugic Late Palaeozoicum (including Triassic deposits) > Basin under Krušné hory Mts.
Stratigraphy: Carboniferous
Subject: paleontology, mineralogy, petrology, volcanology, sedimentology
Geological phenomenon: ichnofossil, horizontal section, bed, bedding, fossils fauna, fossils-flora, stratotype, characteristic rock
Genesis: sedimentary
Rock: claystone, siltstone, sandstone, conglomerate, tuff, tuffite, silicite, chert, hornfels


Territorial protection

Level of protection: Registered geological localities suggested for protection
Part of national geopark: Bohemian Paradise
Conflicts of interests: road construction, ground instability


References
  • BLECHA, M. – MARTÍNEK, K. – DRÁBKOVÁ, J. – HLADÍKOVÁ, J. – ŠIMŮNEK, Z. – ZAJÍC, J. (1997): Změny prostředí karbonu a permu a jejich dopad na společenstva organismů ve fosiliferních obzorech podkrkonošské pánve. – Závěrečná zpráva projektu GAČR 205/94/0692, 177 str.
  • Havlena V.-Tásler R./1963/: Mladší paleozoikum. In Vysvětlivky k přehledné geologické mapě 1:200 000, list M-33-XVI Hradec Králové.-NČSAV Praha,p.53.Praha.
  • Ziegler V./1977/: Geologické poměry chráněné krajinné oblasti Český ráj.-Bohemia centralis,6,p.7-42.Praha

Elaboration and Updating

Elaborated by: Václav Ziegler, 15.11.1993
Updated by: Prouza Vladimír, 23.04.2003, Prouza Vladimír, 30.09.2009, Stárková Marcela, 15.11.2011


Citation

The database Important geological localities of the Czech Republic: 289 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/289.


Location in map:

Assessment

Scientifical assesment: extraordinary
Educational assesment: major
Significance: supraregional
Representativeness: major
Geological importance: paleontological type locality, 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


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