The BGS Lexicon of Named Rock Units — Result Details

Newcastle Formation (A) [Obsolete Name And Code: See HA]

Computer Code: NCL Preferred Map Code: Ncl
Status Code: Index Level
Age range: Asturian Substage (CAS) — Asturian Substage (CAS)
Lithological Description: Grey sandstones, siltstones and mudstones with minor reddened strata; coals few and thin; some thin limestones near base.
Definition of Lower Boundary: Gradation into grey beds from red beds of Etruria Formation, as at Metallic Tileries section.
Definition of Upper Boundary: Passage through intermediate or interbedded colours to red beds of Keele Formation - for details see sections relating to Keele Formation.
Thickness: To c.150m
Geographical Limits: Potteries Syncline; Halesowen Formation farther south.
Parent Unit: Warwickshire Group (WAWK)
Previous Name(s): Newcastle Formation (Obsolete Code: Use NCL) (-2333)
Newcastle Group (-416)
Newcastle-Under-Lyme Series ; Newcastle Beds (-417)
Alternative Name(s): Halesowen Formation
Stratotypes:
Reference Section  Reference section for whole unit: Sidway Mill Borehole, SJ73NE/3, from 2141ft 8in to 2556ft depth. 
Type Area  Potteries Syncline; boreholes and some natural sections; traditional type locality at railway cutting, Newcastle-under-Lyme, see Gibson, 1899, p125. 
Reference Section  Reference section for base, Metallic Tileries section, designated SSSI; section b on geological sheet SJ84NW. 
Reference Section  Reference section for whole formation: Barker's Wood Borehole, SJ84NW/68, from 93ft to 498ft depth. 
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. 
Pocock R W, Whitehead T H, Wedd C B and Robertson T. 1938. Shrewsbury District including the Hanwood Coalfield. Memoir of the Geological Survey of Great Britain, England and Wales. (London: H.M.S.O.). 
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