The BGS Lexicon of Named Rock Units — Result Details

Ashgill Rocks (Undifferentiated)

Computer Code: ASHL Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Ashgill Series (OA) — Ashgill Series (OA)
Lithological Description: In England and Wales it mainly comprises formations that are dominated by mudstone, but also contains some formations in which sandstone is dominant. In the Southern Uplands of Scotland sandstone rich formations dominate.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: This unit is widely exposed at surface in central Wales as well as the English Lake District and the Southern uplands of Scotland.
Parent Unit: Not Entered (?)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Howells, M.F. 2007. British Regional Geology: Wales (Keyworth, Nottingham: British Geological Survey). 
British Geological Survey. 2007. Bedrock Geology UK North. 1:625 000 scale (Keyworth, Nottingham: British Geological Survey). 
Stone , P. McMillan, A.A., Floyd, J.D., Barnes, R.P. and Phillips, E.R. 2012 British Regional Geology: South of Scotland (fourth edition) (Keyworth, Nottingham: British Geological Survey). 
Stone P., Millward, D., Young, B., Clarke, S.M., McCormac, M. and Lawrence, D.J.D. 2010. British Regional Geology: Northern England (fifth edition) (Keyworth, Nottingham: British Geological Survey). 
British Geological Survey. 2007. Bedrock Geology UK South. 1:625 000 scale (Keyworth, Nottingham: British Geological Survey). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable