Dubolka
General Characteristics
County (administration):
Královéhradecký kraj
District (town):
Jičín
Village:
Ohařice, Samšina
Cadastre:
Ohařice, Drštěkryje
Map sheets:
03-34 Sobotka, 03-344 Sobotka
Accessibility:
passable footpath
Technical object:
guarry
ID:
1649
Geology
Short characteristics of the site:
The protected locality represent a remnant of partly eroded and quarried scoria cone with basanitic feeder dike exploited by an abandoned quarry. The conduit breccia exposed in the lowermost part of the quarry passes to superficial phreatomagmatic deposits of the basalt phreatomagmatic layer, covered by a remnant of scoriae of the eroded scoria cone. The feeding dyke was K-Ar dated to 17.32 ± 0.86 Ma (Cajz et al. 2009).
Regional geologic unit:
Bohemian Massif > Tertiary > Tertiary - scaterred relics of alkaline Volcanics
Stratigraphy:
Tertiary
Subject:
volcanology, geomorphology, petrology
Geological phenomenon:
rock, cinder cone, volcaniclastic deposits, vulcano
Genesis:
volcanic
Rock:
breccia, basanite, scoria
Territorial protection
Level of protection:
Nature monument
Additional information:
See the Digital register of the Agency for Nature Conservation and Landscape Protection of the Czech Republic AOPK ČR, code 1536 (Dubolka)
Part of national geopark:
Bohemian Paradise
Conflicts of interests:
without conflicts
References
- Faltysová H., Mackovčin P., Sedláček M. a kol.(2002): Královéhradecko. In: Mackovčin P. a Sedláček M.(eds.): Chráněná území ČR, svazek V. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, str.107 Praha.
- RAPPRICH, V., CAJZ, V., KOŠŤÁK, M., PÉCSKAY, Z., ŘÍDKOŠIL, T., RAŠKA, P. & RADOŇ, M., 2007: Reconstruction of eroded monogenic Strombolian cones of Miocene age: A case study on character of volcanic activity of the Jičín Volcanic Field (NE Bohemia) and subsequent erosion rates estimation. - J. Geosci., 52(3-4): 169-180. http://www.jgeosci.org/content/jgeosci.011_2007_3-4_rapprich.pdf
- Cajz, V., Rapprich, V., Schnabl, P., & Pécskay, Z. (2009). Návrh litostratigrafie neovulkanitů východočeské oblasti. Zprávy o geologických výzkumech, 2008, 9-14. https://app.geology.cz/img/zpravyvyzkum/fulltext/2008-1.pdf
- Čáp, P., et.al. (2022?): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-344 Sobotka. - Česká geologická služba. Praha
Elaboration and Updating
Elaborated by:
Pavlína Jirková, 26.03.2009
Updated by:
Rapprich Vladislav, 25.09.2009, Rapprich Vladislav, 28.04.2022
Citation
The database Important geological localities of the Czech Republic: 1649 [online]. Prague: Czech Geological Survey, 1998 [cit. 2023-06-16]. Available from: https:// lokality.geology.cz/1649.
Location in map:
Assessment
Scientifical assesment:
great
Educational assesment:
major
Significance:
national
Representativeness:
major
Geological importance:
geo-regional value (mapping), geoturistic value
Locality conditions:
no problems
You can send information about a change in the status of the site to lokality@geology.cz
