Borek - lom (petrovické vrstvy)
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Náchod
Village:
Žďárky
Cadastre:
Žďárky
Map sheets:
04-33 Náchod, 04-334 Náchod
Accessibility:
no traffic restriction ( by car)
Technical object:
guarry, gallery
ID:
305
Geology
Short characteristics of the site:
Abandoned quarry at the foot of Borek - hill, at the road. Mostly coarse grained sandstones with feldspar admixture, interbedded with conglomerate layers. Besides vein quartz, pebbles of grey orthoquartzite (20 %) and lydite (25 %) are present. The uppermost part of Žacléř Formation - Petrovice Member (Upper Duckmant - Bolsovian). This locality is situated in the Protected Landscape Area Broumovsko.
Regional geologic unit:
Bohemian Massif > Upper Carboniferous and Permian > Lugic Late Palaeozoicum (including Triassic deposits) > Intra-Sudetic Basin
Stratigraphy:
Carboniferous
Subject:
sedimentology, stratigraphy, structural geology
Geological phenomenon:
cliff
Genesis:
sedimentary
Rock:
sandstone, conglomerate
Territorial protection
Level of protection:
Registred geological localities suggested to protection in Protected landscape area
Part of LEPA (Large-size especially protected areas):
Broumovsko
Part of national geopark:
Broumovsko
Conflicts of interests:
open cast mining, vegetation
References
- Tásler R. et al.(1963): Závěrečná zpráva o zákl.geol.výzkumu jz. křídla vnitrosudetské pánve.-MS Archív ČGÚ.Praha.
- Tásler R. et al.(1979): Geologie české části vnitrosudetské pánve.-Ústř.úst.geol.Praha.
- Archívní geol.mapa list Žďárky 600-1016 (Křovákova projekce) s dokumentací.-MS Geofond.Praha
Elaboration and Updating
Elaborated by:
Radko Tásler, 31.12.1994
Updated by:
Prouza Vladimír, 21.05.2003, Šimůnek Zbyněk, 23.09.2009, Kukal Zdeněk, 19.12.2017
Citation
The database Important geological localities of the Czech Republic: 305 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/305.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
regional
Representativeness:
middle
Geological importance:
geo-regional value (mapping), geoturistic value
Excursion locality:
yes
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
