The BGS Lexicon of Named Rock Units — Result Details

Craighill Sandstone Group [Obsolete Name And Code: Use FELL]

Computer Code: CSG Preferred Map Code: notEntered
Status Code: Index Level
Age range: Holkerian Substage (CQ) — Asbian Substage (CR)
Lithological Description: Massive sandstones, shales, and a few thin coals, with thin limestones and calcareous sandstones.
Definition of Lower Boundary: Drawn at the base of the Craighill Sandstone Group where sandstone rests conformably upon limestone of the Fell Sandstone Group.
Definition of Upper Boundary: Drawn at the conformable upward passage of sandstone of the Craighill Sandstone Group to sandstone with thicker limestone units of the Birdoswald Group.
Thickness: 233 metres approx.
Geographical Limits: Brampton district.
Parent Unit: Not Entered (?)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Brampton district. 
Reference(s):
Trotter, F M and Hollingworth, S E. 1932. The geology of the Brampton District. Memoir of the Geological Survey, Sheet 18. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable