Krkavčí skály Vajoletky
General Characteristics
County (administration):
Liberecký kraj
District (town):
Liberec
Village:
Křižany
Cadastre:
Křižany
Map sheets:
03-13 Hrádek nad Nisou, 03-134 Křížany
Accessibility:
passable footpath
ID:
4058
Geology
Short characteristics of the site:
This locality represents an interesting part of the Bohemian Cretaceous Basin. Series of cliffs and rocky ouitcrops is formed of the sandstones of Jizera Beds. Nearby Strážov fault caused brecciation of sone zones in the sandstones as well as their local silicification and ferritization. The polzenite lavas have filled channelways and their contact contributed to sandstone change. Such compacted and silicified sandstones were formerly quarried in nearby pits and used for local purpose.
Regional geologic unit:
Bohemian Massif > Cretaceous of the Bohemian Massif > Bohemian Cretaceous Basin
Stratigraphy:
Upper Cretaceous
Subject:
geomorphology, structural geology
Geological phenomenon:
rock pillar
Genesis:
sedimentary, tectonic, weathering
Rock:
sandstone, polzenite
Territorial protection
Level of protection:
Registered interesting geological localities
Conflicts of interests:
without conflicts
References
- Rubáš Dominik, 2012: Krásy neživé přírody v Podještědí, Tiskové centrum ČGS, Praha, 82 s.
Elaboration and Updating
Elaborated by:
Pavla Gürtlerová, 11.11.1111
Updated by:
Kukal Zdeněk, 08.09.2017, Vajskebrová Markéta, 27.09.2017, Vajskebrová Markéta, 14.04.2020
Citation
The database Important geological localities of the Czech Republic: 4058 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/4058.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
supraregional
Representativeness:
middle
Geological importance:
geo-regional value (mapping), geoturistic value
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
