Scalby Formation

Scalby Formation
Stratigraphic range: Bathonian

PreꞒ

Ꞓ

O

S

D

C

P

T

J

K

Pg

N

↓
Scalby Formation; Stratigraphic range: Bathonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
	exposure of the Scalby Formation near Scalby, North Yorkshire
Type	Geological formation
Unit of	Ravenscar Group
Sub-units	Moor Grit Member, Long Nab Member
Underlies	Cornbrash Formation, Osgodby Formation
Overlies	Scarborough Formation
Thickness	up to 60 metres (200 ft)
Lithology
Primary	Moor Grit Member - Sandstone; Long Nab Member - Mudstone, Siltstone;
Other	Moor Grit Member - Mudstone, Siltstone; Long Nab Member - Sandstone;
Location
Region	Europe
Country	UK
Extent	North Yorkshire
Type section
Named for	Scalby, North Yorkshire
Location	Scalby Cliff

The Scalby Formation is a geological formation in England. Part of the Ravenscar Group, it was deposited in the Bathonian stage of the Middle Jurassic. The lower Moor Grit Member has a lithology consisting of medium to coarse grained cross bedded sandstone, with thin beds of mudstone and siltstone, while the upper Long Nab Member has a lithology consisting of predominantly laminated mudstone and siltstone, with fine to medium grained planar and cross stratified sandstones.[1]

References

"Scalby Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 7 August 2018.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] "Scalby Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 7 August 2018.