General Characteristics

County (administration): Moravia-Silesian Region
District (town): Ostrava-město
Cadastre: Moravská Ostrava
Map 1 : 50 000 (sheet No): 1543, 15432
Geological region: Quaternary - region of continental glaciation, Žitava & Vidnava basins; Osoblaha Cretaceous
Accessibility: - no traffic restriction ( by car)
ID : 2349

Geology

Short characteristics of the site: Quaternary, areas of continental glaciation. Erratic boulders, originally deposited with sands, later found during quarrying in a sand pit and now placed in an exhibition ground in the Ostrava City. The diameter of largest of them is greater as 100 cm. They consist of porphyric granitoids with potassium feldspar phenocrysts. Two smaller boulders consist of a metaquartzite. These erratics come from the Scandinavian Shield, possibly from Sweden. The locality is classified as a Nature Monument.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary - Quaternary of deposition areas of Bohemian Massif
Stratigraphy: kenozoikum - kvartér
Subject: geomorphology, petrology, quaternary geology
Geological phenomenon: moraine
Genesis: glacigenic (glacier activity)
Rock: granite, migmatite, qurtzite

Territorial conservation

Level of protection: Nature monument
Additional information: See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR
Protection of a geol. phenomenon: A - Protected Area (declared as Geological Locality)
Conflicts of interests: without conflicts

References

Weissmannová H. a kol (2004): Ostravsko. In: Mackovčin P. a Sedláček M.(eds.): Chráněná území ČR, svazek X. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, str.294 Praha.

Elaboration and Updating

Elaborated by: Jirková Pavlína, 02.03.10
Updated by: Nývlt Daniel 03.11.11, Kukal Zdeněk 29.10.12, Kukal Zdeněk 29.12.17

Citation

The database Significant geological localities of the Czech Republic: 2349 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-20]. Available from: http:// lokality.geology.cz/2349.

Location in map: