Bastlova štola
General Characteristics
County (administration):
Plzeňský kraj
District (town):
Klatovy
Village:
Čachrov
Cadastre:
Javorná na Šumavě
Map sheets:
22-31 Sušice, 22-313 Velhartice
Accessibility:
special entry permit necessary (military area, quarry, private land)
Technical object:
shaft, old mine workings
ID:
3855
Geology
Short characteristics of the site:
The locality called the Bastels adit belongs to the Monotonous Group of the Moldanubicum. Relics of mining of quartz veins and secretionary quartz are preserved along the adit entrance and its surroundings. The veins of hydrothermal and secretionary quartz occur within erlans, quartzites and migmatitized paragneisses. The erlans consist mainly of diopside with some plagioclases and chloritized biotite.
Modern surveys of possible adit reopening brought negative results.
This locality belongs to the Register of old mining workings.
Regional geologic unit:
Bohemian Massif > Moldanubicum > Metamorphic units in Moldanubicum > Moldanubicum of Šumava and South Bohemia
Stratigraphy:
Proterozoic - Paleozoic
Subject:
geology, economic geology, mining and mining impacts, mineralogy
Geological phenomenon:
vein, characteristic rock
Genesis:
metamorphic (general metamorphism), hydrothermal mineralization
Rock:
calc-silicate rock, quartz vein
Territorial protection
Level of protection:
Interesting geological localities in Protected landscape area
Part of LEPA (Large-size especially protected areas):
Šumava
Part of national geopark:
Královská Šumava
Conflicts of interests:
without conflicts
References
- Žáčková E. a kolektiv autorů (2015): Vysvětlivky k základní geologické mapě ČR v měřítku 1 : 25 000 list 22313 Velhartice.- Česká geologická služba Praha
Elaboration and Updating
Elaborated by:
Eliška Žáčková, 08.06.2015
Updated by:
Kukal Zdeněk, 12.09.2017
Citation
The database Important geological localities of the Czech Republic: 3855 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/3855.
Location in map:
Assessment
Scientifical assesment:
minor
Educational assesment:
middle
Significance:
regional
Representativeness:
middle
Geological importance:
geo-regional value (mapping)
Locality conditions:
acceptable
You can send information about a change in the status of the site to lokality@geology.cz
