Česká geologická služba
Geological localities
Home  > Search > Votrubcův lom - Kozákov


Votrubcův lom - Kozákov

General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Radostná
Map 1 : 50 000 (sheet No): 0332, 03324
Geological region: Permo-Carboniferous of the Krkonoše-piedmont and Lower Silesian basins
Accessibility: - no traffic restriction ( by car)
Technical object: guarry
Excursion locality: yes
ID : 1457


Short characteristics of the site: Abandoned large quarry owned by Votrubec Family, 0,5 km SSW of the top of Kozákov hill (NNM Kozákov ID 1457). Sequence of mafic lavas approx. at the boundary of Vrchlabí and Prosečné Formations (Permian, Autunian). Mostly massive, partly amygdaloidic trachybasalt to basaltic trachyandesite with intersertal structure. Amygdales are infilled by agates, chalcedony, amethyst, jasper, analcite, chlorite, carbonates atc. The sequence consists of numerous individual lava flows (seven within the quarry - Fediuk 2002). Gemstones and special minerals from Kozákov and surroundings are well known and were collected for centuries. The best specimens are the proud of many local museal collections and a collection of National museum in Prague.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Upper Carboniferous and Permian - Permocarboniferous Volcanits
Stratigraphy: paleozoikum - perm
Subject: volcanology, mineralogy, petrology
Geological phenomenon: lava, lava flow
Genesis: volcanic
Rock: melaphyre

Territorial conservation

Level of protection: National nature monument in Protected landscape area
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)
Part of LEPA (Large-size especially protected areas): CHKO (Protected landscape area) - Český ráj
Part of the Geopark: Bohemian Paradise
Conflicts of interests: collection, private property, vegetation


Chaloupský J., Teisseyre H. (1968): Geology of the West Sudeten. - Guide to Excursion 8 AC, International geolog. congress, XXIII session, Prague 1968, str. 13 - 14. Praha.; Schovánková D. (1989): Petrologie mladopaleozoických vulkanitů podkrkonošské pánve. - Permské bazaltandezity. - MS Archiv ČGS. Praha.; Pešek J. et al. (2001): Geologie a ložiska svrchnopaleozoických limnických pánví České republiky. - Český geologický ústav, 243 s. Praha.; Fediuk F. (2002): Spodnoautunské vulkanity Kozákova, Severní Čechy. - Zpr. geol. Výzk v Roce 2001, 27 - 30. Praha.; Raprrich, V., red. (v tisku): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-324 Turnov. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Prouza Vladimír, 21.01.03
Updated by: Lorencová Markéta 26.06.07, Prouza Vladimír 07.11.08, Rapprich Vladislav 11.11.11


The database Significant geological localities of the Czech Republic: 1457 [online]. Prague: Czech Geological Survey, 1998 [cit. 2021-10-27]. Available from: http:// lokality.geology.cz/1457.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Votrubcův lom - detail andezitoidů, Markéta Vajskebrová, 2003
Votrubcův lom, Markéta Vajskebrová, 2003
Votrubcův lom, Markéta Vajskebrová, 2003

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