General Characteristics

County (administration): Hradec Králové Region
District (town): Náchod
Cadastre: Hejtmánkovice
Map 1 : 50 000 (sheet No): 0431, 04314
Geological region: Permo-Carboniferous of the Krkonoše-piedmont and Lower Silesian basins
Accessibility: - entry permit for car necessary
Technical object: guarry
ID : 1560

Geology

Short characteristics of the site: Abandoned quarry at Mlýnský vrch with rocky walls 5 - 8 m high. Whitish coarse grained rhyolite tuffs - Olivětín Member of the Broumov Formation. A contact with overlying carbonatic sandstones is visible at the western part of the quarry. Tuffs are the product of the youngest phase of the Permian volcanism and are petrographicaly different from the tuffs of older units. This locality is situated in the Protected Landscape Area Broumovsko.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Upper Carboniferous and Permian - Permocarboniferous Volcanits
Stratigraphy: paleozoikum - perm
Subject: geology, sedimentology, paleontology, volcanology
Geological phenomenon: volcaniclastic deposits
Genesis: volcanic
Rock: volcaniclastic deposits, ignimbrite, tuff

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) - Broumovsko
Part of the Geopark: Broumovsko
Conflicts of interests: without conflicts

References

Tásler R. (1994): Revize geologických lokalit na Broumovsku navrhovaných k ochraně. ? MS. str. 7. Archiv CHKO Broumovsko. Police nad Metují. Tásler R. (1995): Revize lokalit geologického charakteru navrhovaných k ochraně v CHKO Broumovsko. ? MS. str.8. Archiv CHKO Broumovsko

Elaboration and Updating

Elaborated by: Plná Věra, 18.11.03
Updated by: Prouza Vladimír 16.03.04, Gürtlerová Pavla 12.09.17, Kukal Zdeněk 19.12.17

Citation

The database Significant geological localities of the Czech Republic: 1560 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-12-08]. Available from: http:// lokality.geology.cz/1560.

Location in map: