Opuštěný lom Hejná
General Characteristics
County (administration):
Plzeňský kraj
District (town):
Klatovy
Village:
Hejná
Cadastre:
Hejná
Map sheets:
22-32 Strakonice, 22-321 Horažďovice
Technical object:
quarry
ID:
443
Geology
Short characteristics of the site:
Large abandoned quarry. It exposes medium-grained crystalline limestone with coarse-grained horizons. In the central parts of the quarry there is 40 m thick horizon of calcareous dolomite and aplite dyke. Also a dyke of lamprophyre and thin layer of biotitic paragneiss. Interesting association of rocks. The rocks are of Proterozoic age and belong to the series of Moldanubian metamorphic rocks.
Regional geologic unit:
Bohemian Massif > Moldanubicum > Metamorphic units in Moldanubicum
Stratigraphy:
Proterozoic
Subject:
mining and mining impacts, petrology, economic geology
Geological phenomenon:
characteristic rock
Genesis:
metamorphic (general metamorphism)
Rock:
marble, dolomite
Territorial protection
Level of protection:
Registered geological localities suggested for protection
Conflicts of interests:
without conflicts
References
- Vejlupek M.-Vejnar Z./1991/: Vysvětlivky k základní geologické mapě ČSFR 1:25 000, 22-321 Horažďovice.-Ústř.úst.geol.Praha.
Elaboration and Updating
Elaborated by:
Miroslav Vejlupek, 13.11.1993
Updated by:
Kukal Zdeněk, 03.11.2017
Citation
The database Important geological localities of the Czech Republic: 443 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/443.
Location in map:
Assessment
Scientifical assesment:
Educational assesment:
Significance:
Representativeness:
Geological importance:
geoturistic value
Locality conditions:
You can send information about a change in the status of the site to lokality@geology.cz