Velká Kraš - Horní a Dolní Křemen
General Characteristics
County (administration):
Olomoucký kraj
District (town):
Jeseník
Village:
Velká Kraš
Cadastre:
Velká Kraš
Map sheets:
14-22 Jeseník, 14-221 Žulová
Accessibility:
entry permit for car necessary
Technical object:
guarry
ID:
2558
Geology
Short characteristics of the site:
Silesicum and Žulová Massif. Abandoned open pit quarries and underground mining workings where quartz was exploited. Now mineralogical locality. Two quartz veins 2 -14 metres thick. Quartz was of a good quality, with more than 99 per cent of silica. Already during 16th century this raw material was used in glass industry. Later this deposit was abandoned and now both superficial and underground workings are flooded.
Regional geologic unit:
Bohemian Massif > Moravosilesian region > Silezicum
Stratigraphy:
Devonian
Subject:
mining and mining impacts, geology, mineralogy, economic geology
Geological phenomenon:
vein
Genesis:
anthropogenic (anthropogenic activity), hydrothermal mineralization
Rock:
granite
Territorial protection
Level of protection:
Registered interesting geological localities
Conflicts of interests:
without conflicts
References
- Pecina, V. et al. (2005): Vysvětlivky k základní geologické mapě České republiky 1 : 25 000 14-221 Žulová. - ČGS, 197 str., Praha.
- Večeřa, J., Skácelová, Z. (2006): Ložisková mapa České republiky 1:25000 s Vysvětlivkami, 14-221 Žulová. – ČGS Praha, 33. s, Jeseník
Elaboration and Updating
Elaborated by:
Pecina Vratislav, 21.01.2006
Updated by:
Večeřa Josef, 08.04.2011, Kukal Zdeněk, 06.10.2012
Citation
The database Important geological localities of the Czech Republic: 2558 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/2558.
Location in map:
Assessment
Scientifical assesment:
medium
Educational assesment:
middle
Significance:
regional
Representativeness:
middle
Geological importance:
geo-historical value
Excursion locality:
yes
Locality conditions:
poor
You can send information about a change in the status of the site to lokality@geology.cz
