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Rácov

General Characteristics

County (administration): Vysočina Region
District (town): Jihlava
Cadastre: Rácov
Map 1 : 50 000 (sheet No): 2341, 23413
Geological region: Moldanubian Pluton - Central Massif; Melechov Massif
Accessibility: - entry permit for car necessary
Technical object: guarry
Excursion locality: yes
ID : 3534

Geology

Short characteristics of the site: The active quarry Rácov exploiting two-mica granite (the Mrákotín Variety). This pluton is of composite type and contains enclaves of porphyric biotite granite, sharp edged blocks of migmatite from the Monotonous Group of the Moldanubicum, and discordant dykes of microdiorite and microgabbro composition. Also a xenolith of serpentinized peridotite was found. So, this locality gives record of magmatic processes. This locality belongs to the Central Massif of the Moldanubicum Zone.
Regional geologic unit: Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moldanubicum - Metamorphic units in Moldanubicum, Bohemian Massif - crystalline complex and pre-Variscian Palaeozoic - Moldanubicum - Magmatites in Moldanubicum
Stratigraphy: variské (hercynské) stáří vyvřelin, paleozoikum až proterozoikum
Subject: geology, lithology
Geological phenomenon: characteristic rock
Genesis: magmatic
Rock: granite, migmatite

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
Part of the Geopark: Vysočina
Conflicts of interests: exploitation

References

Verner, K. et al. (2012): Vysvětlivky k základní geologické mapě 1 : 25 000 list 23-413 Hodice.

Elaboration and Updating

Elaborated by: DudíkSchulmannová Barbora, 04.06.12
Updated by: Kukal Zdeněk 26.09.17, Kukal Zdeněk 22.11.17

Citation

The database Significant geological localities of the Czech Republic: 3534 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-03-29]. Available from: http:// lokality.geology.cz/3534.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Celkový pohled na lokalitu činného lomu Rácov, Kryštof Verner, 2010
Diskordantní žíly dioritového složení pronikající dvojslídné granity typ Mrákotín, Kryštof Verner, 2010
Ostrohranné bloky biotitického migmatitu v dvojslídném granitu typ Mrákotín., Kryštof Verner, 2010


(C) 2003-2012 ČGS, verse aplikace 1.21 [3.2.2016]