Antonínův Důl - kvarcitické svory a porfyroidy
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Trutnov
Village:
Svoboda nad Úpou
Cadastre:
Maršov II
Map sheets:
03-42 Trutnov, 03-424 Trutnov
Accessibility:
passable footpath
ID:
3480
Geology
Short characteristics of the site:
Palaoezoic of the Rýchory Crystalline. Small outcrops made of chloritic-muscovitic and quartzitic mica schists. They are rich in quartz and feldspar blasts.In their vicinity boulders of grey and pinkish porphyroids occur. They are described as products of bimodal volcanism which took place during the Early Paleozoic rifting. Their zircon-ages are 500 -485 Ma according to the Rb-Sr method 512 plus minus 8 Ma.
Regional geologic unit:
> Rýchory crystalline complex
Stratigraphy:
Paleozoic
Subject:
lithology
Geological phenomenon:
characteristic rock
Genesis:
metamorphic (general metamorphism)
Rock:
mica schist
Territorial protection
Level of protection:
Interesting geological localities in National park
Part of LEPA (Large-size especially protected areas):
Krkonošský národní park
Conflicts of interests:
without conflicts
References
- Schovánek P. et al. (2012): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03424 Trutnov. Česká geologická služba. Praha.
Elaboration and Updating
Elaborated by:
Pavla Gürtlerová, 08.03.2012
Updated by:
Kukal Zdeněk, 24.11.2012
Citation
The database Important geological localities of the Czech Republic: 3480 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3480.
Location in map:
Assessment
Scientifical assesment:
minor
Educational assesment:
minor
Significance:
regional
Representativeness:
middle
Geological importance:
geo-regional value (mapping)
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz