Dyrham Formation

The Dyrham Formation is a geologic formation in England. It preserves fossils dating back to the early part of the Jurassic period (Pliensbachian).[1]

Dyrham Formation
Stratigraphic range: Pliensbachian
TypeFormation
Unit ofLias Group
Sub-unitsEype Clay Member, Down Cliff Sand Member, Thorncombe Sand Member
UnderliesBeacon Limestone Formation, Marlstone Rock Formation
OverliesCharmouth Mudstone Formation
AreaWessex Basin, Worcester Basin, East Midlands Shelf
Thickness~125 m
Lithology
Primarymudstone, silt, sand
Otherferruginous limestone
Location
RegionEngland
CountryUnited Kingdom
Type section
Named forDyrham

See also

References

  1. British Geological Survey. "Dyrham Formation". BGS Lexicon of Named Rock Units. Retrieved 2018-03-08.
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