General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Troskovice
Map 1 : 50 000 (sheet No): 0334, 03342
Geological region: Czech Cretaceous Basin - Labe & Čáslav Cretaceous; Cretaceous of the Dlouhá mez
Accessibility: - access without footpath
ID : 3444

Geology

Short characteristics of the site: Bohemian Cretaceous Basin. Pseudokarst cave, about 30 m long and deep, near the edge of the Troskovice cuesta. It was formed in fractured quartzose sandstone of the Teplice Formation. Its entrance is closed, because of protected population of horsehoe bats.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Cretaceous - Czech Cretaceous Basin
Stratigraphy: mezozoikum - křída - svrchní křída - coniak
Subject: geomorphology
Geological phenomenon: pseudocrast cave
Genesis: weathering , aquatic (water activity)
Rock: sandstone

Territorial conservation

Level of protection: Nature reserve in Protected landscape area
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area (declared as Geological Locality)
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Český ráj
Part of the Geopark: Bohemian Paradise
Conflicts of interests: tourism

References

Čech, S., et.al. (2011): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-342 Rovensko pod Troskami. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Čech Stanislav, 15.02.12
Updated by: Kukal Zdeněk 26.11.12

Citation

The database Significant geological localities of the Czech Republic: 3444 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-05]. Available from: http:// lokality.geology.cz/3444.

Location in map: