General Characteristics

County (administration): Hradec Králové Region
District (town): Jičín
Cadastre: Podkost
Map 1 : 50 000 (sheet No): 0334, 03341
Geological region: Czech Cretaceous Basin - Labe & Čáslav Cretaceous; Cretaceous of the Dlouhá mez
Accessibility: - no traffic restriction ( by bus)
Technical object: old mine workings
Excursion locality: yes
ID : 3249

Geology

Short characteristics of the site: Bohemian Cretaceous Basin. Artifical trench exposing quartzose sandstones with layers of ferrolite of the Teplice Formation. Ferrolites contain about 30 p.c. of Fe hydroxide and are enriched in phosphorus. They were formed by ferrugination at a contact with basanite. This locality is registered and situated in the Geopark and Protected Landscape Area Český ráj - the Bohemian Paradise.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Cretaceous - Czech Cretaceous Basin
Stratigraphy: mezozoikum - křída - svrchní křída
Subject: sedimentology, mineralogy, mining and mining impacts
Geological phenomenon: incrustation
Genesis: sedimentary, chemogenetic
Rock: sandstone

Territorial conservation

Level of protection: Interesting geological localities in Protected landscape area
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Český ráj
Part of the Geopark: Bohemian Paradise
Conflicts of interests: without conflicts

References

Valečka, J., red. (2011): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-341 Kněžmost. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Valečka Jaroslav, 16.07.10
Updated by: Gürtlerová Pavla 20.01.12, Kukal Zdeněk 21.12.17, Vajskebrová Markéta 27.04.20

Citation

The database Significant geological localities of the Czech Republic: 3249 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-25]. Available from: http:// lokality.geology.cz/3249.

Location in map: