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Trosky

General Characteristics

County (administration): Liberec Region
District (town): Semily
Cadastre: Troskovice
Map 1 : 50 000 (sheet No): 0334, 03342
Geological region: Czech Cretaceous Basin - Labe & Čáslav Cretaceous; Cretaceous of the Dlouhá mez
Accessibility: - entry permit for car necessary
Excursion locality: yes
ID : 1636

Geology

Short characteristics of the site: Erosional remnant of a scoria cone with coherent feeder (basanite) exposed by selective erosion. Pyroclastic deposits (non-welded scoriea and spindle-shaped bombs) can be followed around the coherent rock.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Tertiary - Dispersed Alcalic volcanits
Stratigraphy: kenozoikum - terciér (paleogén - neogén)
Subject: volcanology, geomorphology, geology
Geological phenomenon: vulcano, cinder cone
Genesis: volcanic
Rock: basanite, scoria

Territorial conservation

Level of protection: 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: without conflicts

References

Mackovčin P., Sedláček M. a Kuncová J. (2002): Chráněná území ČR - Liberecko, Svazek III. Agentura ochrany přírody a krajiny ČR a EkoCentrum Brno, Praha, 331 s.; 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 ;Čech, S., et.al. (2011): Základní geologická mapa České republiky 1 : 25 000 s Vysvětlivkami 03-342 Rovensko pod Troskami. - Česká geologická služba. Praha.

Elaboration and Updating

Elaborated by: Lorencová Markéta, 23.11.07
Updated by: Rapprich Vladislav 25.09.09, Rapprich Vladislav 12.11.11

Citation

The database Significant geological localities of the Czech Republic: 1636 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-03-28]. Available from: http:// lokality.geology.cz/1636.

Location in map:

Links to neighbouring localities within 2 km radius are available on mouse click in the map window.
Skalní věže modelovalo mrazové zvětrávání a později, při stavbě hradu i lidská činnost., Motyčková Kamila - Šír Jiří, 2011
Daniel Smutek, 2010
Stanislav Čech, 2010
Sloupcovitá odlučnost olivinického nefelinitu, Tomáš Kumpan, 2008
Vladislav Rapprich, 2008
Vladislav Rapprich, 2008
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(C) 2003-2012 ČGS, verse aplikace 1.21 [3.2.2016]