About: Letná Formation

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The Letná Formation is a Late Ordovician (Sandbian, or in the regional stratigraphy ) geologic formation of the , Bohemian Massif in the Czech Republic. The formation crops out in the Czech capital, more specifically at Letná Hill, after which the formation is named. The type locality is located at Malá Strana, Holešovice district. The more than 600 metres (2,000 ft) thick formation comprises a rhythmic alternation of sandstones (greywackes and ), quartzites, intercalated with siltstones and shales deposited in marine flysch-like environments.

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  • The Letná Formation is a Late Ordovician (Sandbian, or in the regional stratigraphy ) geologic formation of the , Bohemian Massif in the Czech Republic. The formation crops out in the Czech capital, more specifically at Letná Hill, after which the formation is named. The type locality is located at Malá Strana, Holešovice district. The more than 600 metres (2,000 ft) thick formation comprises a rhythmic alternation of sandstones (greywackes and ), quartzites, intercalated with siltstones and shales deposited in marine flysch-like environments. Because of the excellent preservation, including gut remains, of a wide assemblage of early Paleozoic taxa in which trilobites dominate, the formation, which is lean in fossils in many areas but exceptionally rich in what has been interpreted as storm beds, has been designated a Konservat-Lagerstätte. (en)
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  • Malá Strana, Holešovice, Prague (en)
dbp:name
  • Letná Formation (en)
dbp:namedby
  • Havlíček & Vaněk (en)
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  • Letná Hill (en)
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dbp:period
  • Sandbian (en)
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  • > (en)
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  • 1966 (xsd:integer)
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  • 50.0 14.0
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  • The Letná Formation is a Late Ordovician (Sandbian, or in the regional stratigraphy ) geologic formation of the , Bohemian Massif in the Czech Republic. The formation crops out in the Czech capital, more specifically at Letná Hill, after which the formation is named. The type locality is located at Malá Strana, Holešovice district. The more than 600 metres (2,000 ft) thick formation comprises a rhythmic alternation of sandstones (greywackes and ), quartzites, intercalated with siltstones and shales deposited in marine flysch-like environments. (en)
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  • Letná Formation (en)
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  • 14.000000 (xsd:float)
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