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Buntsandstein
The Buntsandstein (German for ''coloured'' or ''colourful sandstone'') or Bunter sandstone is a lithostratigraphic and allostratigraphic unit (a sequence of rock strata) in the subsurface of large parts of west and central Europe. The Buntsandstein predominantly consists of sandstone layers of the Lower Triassic series and is one of three characteristic Triassic units, together with the Muschelkalk and Keuper that form the Germanic Trias Supergroup. The Buntsandstein is similar in age, facies and lithology with the Bunter of the British Isles. It is normally lying on top of the Permian Zechstein and below the Muschelkalk. In the past the name Buntsandstein was in Europe also used in a chronostratigraphic sense, as a subdivision of the Triassic system. Among reasons to abandon this use was the discovery that its base lies actually in the latest Permian. Origin The Buntsandstein was deposited in the Germanic Basin, a large sedimentary basin that was the successor of the smaller ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germanic Trias
The Germanic Trias Supergroup (german: Germanische Trias-Supergruppe) is a lithostratigraphic unit (a sequence of rock strata) in the subsurface of large parts of western and central Europe (north of the Alps) and the North Sea. Almost all of the Germanic Trias was deposited during the Triassic period and consists of three clearly different units: Buntsandstein, Muschelkalk and Keuper, that gave the period its name (''Triassic'' means "threefold"). In the past the names of these three units were also used as units in the geologic timescale, but in modern literature they only have a lithostratigraphic meaning. Origin The Germanic Trias formed in the large Germanic Basin, a basin that covered much of midwestern Europe (including the south of the North Sea and Baltic Sea) during the Triassic. The Muschelkalk has a predominantly marine facies whereas the Buntsandstein and Keuper are mostly continental. Stratigraphy In the central parts of the Germanic Basin, the Germanic Tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
