The BGS Lexicon of Named Rock Units — Result Details

Hawksmoor Formation [Obsolete Name And Code Use: CHES]

Computer Code: HAW Preferred Map Code: HAW
Status Code: Pending Upgrade
Age range: Early Triassic Epoch (TE) — Early Triassic Epoch (TE)
Lithological Description: Red-brown, yellow, or yellow-mottled, very fine- to coarse-grained sandstones, commonly cross-bedded, locally micaceous, silty or argillaceous, pebbly or conglomeratic. Generally friable.
Definition of Lower Boundary: Usually unconformable on Palaeozoic rocks. Where conformably overlying the Huntley Formation, base taken where conglomerate or sandstone containing locally derived clasts gives way to sandstones and conglomerates with few such clasts.
Definition of Upper Boundary: Base of overlying Hollington or Denstone formations (disconformable).
Thickness: 0 - 300m+
Geographical Limits: Needwood Basin.
Parent Unit: none recorded or not applicable
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Bank of Ordley Brook, Stanton. 
Reference Section  Road cutting between Alton village and River Churnet. 
Type Area  Around Hawksmoor Wood, 2.5km eastnortheast of Cheadle, Staffordshire. 
Reference(s):
Charsley, T J, 1982. A standard nomenclature for the Trassic formations of the Ashbourne district. Report of the Institute of Geological Sciences, No. 81/14. 
Warrington, G, Audley-Charles, M G, Elliott, R E, Evans, W B, Ivimey-Cook, H C, Kent, P E, Robinson, P L, Shotton, F W and Taylor, F M. 1980. A correlation of the Triassic rocks in the British Isles. Special Report of the Geological Society of London, No.13. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E123 E124