Earth:Marl Slate Formation

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Marl Slate Formation
Stratigraphic range: Lopingian
TypeFormation
UnderliesRaisby Formation, Cadeby Formation
OverliesYellow Sands Formation or unconformity with Carboniferous Coal Measures
ThicknessTo 5.48 metres
Lithology
PrimaryDolomite
Location
RegionEngland
CountryUnited Kingdom

The Marl Slate Formation is a geological formation in England. Despite its name, it is mostly dolomite rock.[1] The Marl Slate Formation was formed about 273 to 259 million years ago, during the Guadalupian and Lopingian epochs of the late Permian period of the Earth's geological history.[1] This formation is part of the Zechstein Group of rocks, and is equivalent to the Kupferschiefer of Germany.[1] The Marl Slate Formation contains fossils including the conodont Mesogondolella britannica and the dorypterid fishes Dorypterus and Lekanichthys,[2] as well as the gliding reptile Weigeltisaurus[3] and terrestrial reptile Protorosaurus[4] The Marl Slate Formation outcrops in County Durham and Yorkshire in north-east England.[1]

See also

  • Geology of Yorkshire
  • List of fossiliferous stratigraphic units in England

References