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Velký Roudný

General Characteristics

County (administration): Moravia-Silesian Region
District (town): Bruntál
Cadastre: Roudno
Map 1 : 50 000 (sheet No): 1531, 15314
Geological region: Moravosilesian Devonian; Drahany, Mírov and Jeseníky Culm, incl. the Maleník block
Accessibility: - passable footpath
Excursion locality: yes
ID : 2369

Geology

Short characteristics of the site: Moravosilesian Palaeozoic, Quaternary volcanics. National Nature MOnument. The best developed scoria cone in the Bohemian Massif with outcrops in summit cone parts. Asymmetry of of cone shape was caused by prevailing wind regime and direction of lava flow. Scoria deposits are coarse grained, not welded and without ash fraction. Mechanism of volcanic activity corresponds to a low-energy strombolian eruption. Four lava flows belong to this area, their age is 1.5 and 2.4 Ma.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Quaternary - Quaternary volcanism of Bohemian Massif
Stratigraphy: kenozoikum - terciér (paleogén - neogén), kenozoikum - kvartér
Subject: geology, volcanology, petrology
Geological phenomenon: cinder cone, lava flow
Genesis: volcanic
Rock: scoria, basanite, foidite

Territorial conservation

Level of protection: National 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. 116 - 117, Praha.

Elaboration and Updating

Elaborated by: Gürtlerová Pavla, 05.11.08
Updated by: Hradecký Petr 10.11.08, Rapprich Vladislav 05.04.12, Rapprich Vladislav 31.08.12

Citation

The database Significant geological localities of the Czech Republic: 2369 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-05-02]. Available from: http:// lokality.geology.cz/2369.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Pohled na Velký Roudný od západu, Pavla Tomanová Petrová, 2021
Siluety vrcholů Velký a Malý Roudný., Tomáš Lehotský, 2014
Nejvyšší a nejzachovalejší stratovulkán Nízkého Jeseníku (780 m n. m.), Motyčková Kamila - Šír Jiří, 2013
Tvarově dokonale vyvinutý a zachovalý struskový kužel., Tomáš Lehotský, 2012
Kaple na vrcholu Velkého Roudného je postavena z
Akumulace hrubých strusek ve vrcholové části, zřetelná je podpůrná struktura velkých klastů a absence jemné frakce., Vladislav Rapprich, 2012
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(C) 2003-2012 ČGS, verse aplikace 1.21 [3.2.2016]