The BGS Lexicon of Named Rock Units — Result Details

Nottingham Castle Sandstone Formation [Obsolete Name And Code Use: CHES]

Computer Code: NTC Preferred Map Code: Ntc
Status Code: Pending Upgrade
Age range: Early Triassic Epoch (TE) — Early Triassic Epoch (TE)
Lithological Description: Sandstone, pinkish red or buff-grey, medium- to coarse-grained, pebbly, cross-bedded, friable; subordinate lenticular beds of reddish brown mudstone.
Definition of Lower Boundary: Marked but gradual upward increase in grain size and pebble content; overlies Lenton Sandstone Formation.
Definition of Upper Boundary: Sharp, non-sequence; marked by mudstone of thin conglomerate at base of Mercia Mudstone Group.
Thickness: 70-170m (thickens to NE) in Nottinghamshire.
Geographical Limits: Crops out in Nottinghamshire and south Yorkshire; pebbles die out north of Doncaster and hence formation not recognisable. Probably correlates with Kidderminster Formation etc. of central England.
Parent Unit: none recorded or not applicable
Previous Name(s): Nottingham Castle Formation (-3590)
Bunter Pebble Beds [Obsolete Name And Code: Use CHES] (BNP)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Castle Rock, Nottingham; 40m high river cliff with up to 35m of exposure. 
Reference Section  Park Tunnel off Derby Road, Nottingham. 8m high tunnel with exposures of cross-bedding in 3-dimensional view. 
Reference(s):
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. 
Ambrose, K, Hough, E, Smith, N J P and Warrington, G. 2014. Lithostratigraphy of the Sherwood Sandstone Group of England, Wales and south-west Scotland. British Geological Survey Research Report, RR/14/01. 
Elliott, R E 1961. The stratigraphy of the Keuper Series in southern Notinghamshire. Proceedings of the Yorkshire Geological Society, Vol.33, 197-231. 
Charsley, T J, Rathbone, P A and Lowe, D J, 1990. Nottingham: A geological background for planning and development. British Geological Survey Technical Report WA/90/1. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E126 E087 E088 E101 E113 E142