The BGS Lexicon of Named Rock Units — Result Details

Highley Formation [Obsolete Name And Code: See HA]

Computer Code: HYG Preferred Map Code: Hyg
Status Code: Index Level
Age range: Asturian Substage (CAS) — Asturian Substage (CAS)
Lithological Description: Sandstones and grey shales with Spirorbis limestones and coal seams.
Definition of Lower Boundary: Unconformable on the Old Hill ('Etruria') Marl.
Definition of Upper Boundary: Placed at colour change from grey beds of Highley Formation to red beds of the Keele Formation.
Thickness: 91-183m
Geographical Limits: Wyre Forest Coalfield.
Parent Unit: Warwickshire Group (WAWK)
Previous Name(s): Highley Group (-335)
Highley Beds (-4109)
Alternative Name(s): Halesowen Formation
Stratotypes:
Type Area  Vicinity of village of Highley, Shropshire. 
Reference Section  Highley No. 1 Pit section. (Whitehead and Pocock, 1947, Plate IV). From top of pit to 413ft. 6ins (c. 126.04m). 
Reference(s):
Powell, J H, Chisholm, JI, Bridge, D M, Rees, J G, Glover, B W and Besly, B M. 1999. Stratigraphical framework for Westphalian to Early Permian red-bed successions of the Pennine Basin. British Geological Survey Technical Report WA/99/10. 
Whitehead, T H and Pocock, R W. 1947. Geology of the country around Dudley and Bridgnorth. Memoir of the British Geological Survey, Sheet 167. (England and Wales). 
Mitchell, G H, Pocock, R W, and Taylor, J H. 1962. Geology of the country around Droitwich, Abberley and Kidderminster. Memoir of the Geological Survey of Great Britain, Sheet 182 (England and Wales). 
Ramsbottom, W H C, Calver, M A, Eagar, R M C, Hodson, F, Holliday, D W, Stubblefield, C J and Wilson, R B. 1978. A correlation of the Silesian rocks in the British Isles. Geological Society of London, Special Report No.10. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E199