General Characteristics

County (administration): Plzeň Region
District (town): Klatovy
Cadastre: Svojše
Map 1 : 50 000 (sheet No): 2233, 22334
Geological region: Šumava Moldanubicum - district KT; Moldanubicum of the Český les Mts.; Domažlice crystalline complex; W-Bohemian Pluton; W-Bohemian basic magmatites
Accessibility: - passable footpath
ID : 2624

Geology

Short characteristics of the site: Moldanubicum, metamorphic units. Šumava Mts. Nature monument. Outcrops along Vydra River canyon, also boulders in a river bed. Rocks consist oof stromatitic biotite migmatite which contains also sillimanite, cordierite and accessoric garnet. Magnetic susceptibility and radioactivity were measured and data are available. Large potholes occur on boulders and blocks in river bed.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary
Stratigraphy: kenozoikum - kvartér
Subject: geomorphology, geology
Geological phenomenon: block field, outcrop, pothole, river channel
Genesis: aquatic (water activity), gravitational, metamorphic (contact metamorphism)
Rock: migmatite

Territorial conservation

Level of protection: Nature monument in National park
Protection of a geol. phenomenon: A - Protected Area (declared as Geological and Biological Locality)
Part of LEPA (Large-size especially protected areas): NP (National park) - Šumava
Part of the Geopark: Královská Šumava
Conflicts of interests: without conflicts

References

Žáček V. et al. (2005): Vysvětlivky k základní geologické mapě ČR 1:25 000, list 22-334 Kvilda, - MS, ČGS; Babůrek J. a Žáček V. (2007): Exkurze č. 3 "Západní Šumava" in Breiter K. (ed.) Sborník abstraktů a exkurzní průvodce 3. sjezdu ČGspol, Volary 19. - 22.9.2007, ČGSpol, Praha.; Kunský J. (1949): Obří hrnce na Vydře a Křemelné na Šumavě, Zvl. otisk SČSZ, 1949, 1, 1-7, Praha.

Elaboration and Updating

Elaborated by: Žáček Vladimír, 17.01.07
Updated by: Gürtlerová Pavla 08.10.10, Kukal Zdeněk 20.11.12, Vajskebrová Markéta 12.08.21

Citation

The database Significant geological localities of the Czech Republic: 2624 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-30]. Available from: http:// lokality.geology.cz/2624.

Location in map: