General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Syřenov Zboží
Map 1 : 50 000 (sheet No): 0343, 03431
Geological region: Permo-Carboniferous of the Krkonoše-piedmont and Lower Silesian basins
Accessibility: - passable footpath
Excursion locality: yes
ID : 284

Geology

Short characteristics of the site: The top of the Kumburk hill (642 m a.s.l.) is formed by olivinic basalt grading locally to chimney breccia. Xenolittes of Upper Palaeozoic and Cretaceous sediments are present as well as crystals of augite, amphibole, magnetite and pyrite.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: volcanology, mineralogy, petrology, archeology
Geological phenomenon: stony organ, intrusion, block field, rock, vulcano, characteristic rock
Genesis: volcanic
Rock: basalt

Territorial conservation

Level of protection: Registered geological localities suggested for protection
Protection of a geol. phenomenon: B - Geological phenomenon is the reason for a recommendation to the protection
Part of the Geopark: Bohemian Paradise
Conflicts of interests: collection

References

Pacák O./1957/: Čedičové vyvřeliny na území speciální mapy Jičín, č.3855.-Sbor.ÚÚG,24,geol.,2,p.69-147.Praha.; Ziegler V./1977/: Geologické poměry chráněné krajinné oblasti Český ráj.-Bohemia centralis,6,p.7-42.Praha.; Cajz V. a kol. (2009): Návrh litostratigrafie neovulkanitů východočeské oblasti, Zprávy o geologických výzkumech 42, 2009, str. 9–14.; Rapprich V. (2012): Za sopkami po Čechách, Grada Publishing, Praha.

Elaboration and Updating

Elaborated by: Ziegler Václav, 18.11.93
Updated by: Lorencová Markéta 26.06.07, Šimůnek Zbyněk 24.09.09, Rapprich Vladislav 11.11.11, Vajskebrová Markéta 06.11.20

Citation

The database Significant geological localities of the Czech Republic: 284 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-29]. Available from: http:// lokality.geology.cz/284.

Location in map: