The BGS Lexicon of Named Rock Units — Result Details

Radwood Formation [Obsolete Name And Code: See SAL]

Computer Code: RWD Preferred Map Code: Rwd
Status Code: Index Level
Age range: Stephanian Stage (CS) — Stephanian Stage (CS)
Lithological Description: Brick-red mudstones, poorly-micaceous, usually calcareous, with sandstones and limestones.
Definition of Lower Boundary: Base of sequence of brick-red mudstone, poorly-micaceous, usually calcareous, with sandstone and limestone, over usually more variegated mudstone, lithic and micaceous sandstone typical of Keele Formation (red facies of Halesowen Formation). Base drawn where Radwood lithologies predominate over Keele lithologies in an interbedded transition.
Definition of Upper Boundary: Unconformably overlain by Triassic rocks.
Thickness: 900m+
Geographical Limits: Potteries Coalfield.
Parent Unit: Warwickshire Group (WAWK)
Previous Name(s): Keele Beds (-1947)
Alternative Name(s): Salop Formation
Stratotypes:
Partial Type Section  Stream section between Radwood Copse and Madeley Manor, Staffordshire. 
Partial Type Section  Radwood Borehole, SJ 74 SE/28, between 204.34m and collar. 
Partial Type Section  Keele Park railway cutting between 80m north of bridge and 270m south of bridge to Stony Low Farm. 
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. 
Gibson, W G, 1925. The geology of the country around Stoke-on-Trent. Memoir of the British Geological Survey, Sheet 123, (England and Wales). 
Rees, J G and Wilson, A A. 1998. Geology of the country around Stoke-on-Trent. Memoir of the British Geological Survey, Sheet 123 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E123