Ravenscar Group

Ravenscar Group Stratigraphic range: Aalenian to Bathonian (Jurassic)
Sandstones and mudstones of the Saltwick Formation exposed on the cliffs near Herbert Hole, south of Ravenscar, North Yorkshire
Type	Group
Sub-units	Saltwick, Eller Beck, Cloughton, Scarborough and Scalby Formations
Underlies	Cornbrash Formation
Overlies	Dogger Formation
Thickness	114m to c240m
Lithology
Primary	sandstone
Other	mudstone, limestone, ironstone, coal
Location
Country	England
Extent	North Yorkshire
Type section
Named for	Ravenscar

The Ravenscar Group is a Jurassic lithostratigraphic group (a sequence of rock strata) which occurs within the Cleveland Basin of North Yorkshire and extends to both the Hambleton and Howardian Hills. The name is derived from Ravenscar on the North Yorkshire coast where rocks of this age occur. It was earlier known as the 'Middle Jurassic Series'.^[1][2]

References