General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Smrčí u Semil
Map 1 : 50 000 (sheet No): 0332, 03324
Geological region: Permo-Carboniferous of the Krkonoše-piedmont and Lower Silesian basins
Accessibility: - special entry permit necessary (military area, quarry, private land)
Technical object: guarry
ID : 559

Geology

Short characteristics of the site: Active quarry exposing lava flows of Tertiary basalts. Important exposure of neoidic basalts which enabled a datation of Tertiary volcanic activity. Lava flows cover gravelly terraces of Jizera River. Significant locality.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: petrology, volcanology, mineralogy, economic geology
Geological phenomenon: stony organ, lava flow, mineral
Genesis: volcanic
Rock: basanite

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: open cast mining

References

Chaloupský J., Teisseyre, H., 1968: Geology of the West Sudeten. - Guide to Excursion 8 AC, International geolog. congress, XXIII session, Prague 1968, str. 14. Praha.; Raprrich, V., red. (2011): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-324 Turnov. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Drozen Jan, 30.10.01
Updated by: Dašková Jiřina 25.10.01, Gürtlerová Pavla 08.01.12, Rapprich Vladislav 31.08.12

Citation

The database Significant geological localities of the Czech Republic: 559 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-12-08]. Available from: http:// lokality.geology.cz/559.

Location in map: