General Characteristics

County (administration): South Moravia Region
District (town): Brno-město
Cadastre: Kníníčky
Map 1 : 50 000 (sheet No): 2432, 24324
Geological region: Letovice, Krhovice, Nectava and Svinov-Vranová crystalline complexes; Moravicum; crystalline complex of Miroslav horst; Brunovistulicum
Accessibility: - access without footpath
ID : 3298

Geology

Short characteristics of the site: Brno Massif, diorite zone. Outcrops on flat plain covered with loess. Rock cliff about 3 m high. This plain is also covered by gravel which belongs to the Tuřany terrace (upper parts of the Early Pleistocene). This gravel consists mainly of subrounded and sharp edged pebbles of gneiss.Lenses of sand occur within gravel layer. Outcrops of fine grained diorite of the Brn Massif occur on the opposite shore of dam lake. This rock contains alternating bands enriched either with hornblende of plagioclase.Locally this diorite is cut by veins of granodiorites, basalts and pegmatites.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moravosilesian region - Brunovistulicum, Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary - Quaternary of deposition areas of Bohemian Massif
Stratigraphy: kenozoikum - kvartér - pleistocén - střední pleistocén, proterozoikum - neoproterozoikum (1000 - 542 Ma)
Subject: sedimentology, geology, mineralogy
Geological phenomenon: river terrace, fluvial terrace, rock
Genesis: magmatic
Rock: gravel-sand, diorite

Territorial conservation

Level of protection: Registered interesting geological localities
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Conflicts of interests: tourism

References

Hanžl P. et al., 2011: Vysvětlivky k základní geologické mapě ČR v měřítku 1 : 25 000 list 24324, Brno sever.- Český geologický ústav Praha

Elaboration and Updating

Elaborated by: Pecka Tomáš, 02.06.11
Updated by: Gürtlerová Pavla 27.09.12

Citation

The database Significant geological localities of the Czech Republic: 3298 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-08]. Available from: http:// lokality.geology.cz/3298.

Location in map: