The BGS Lexicon of Named Rock Units — Result Details

Droitwich Halite Member

Computer Code: DHT Preferred Map Code: notEntered
Status Code: Full
Age range: Carnian Age (TC) — Carnian Age (TC)
Lithological Description: Halite, in thick beds up to 12m thick, interbedded with mudstone, reddish-brown, blocky ,with abundant halite nodules and veins.
Definition of Lower Boundary: Conformable, and drawn at the abrupt or slightly gradational upward transition from reddish brown mudstone (Sidmouth Mudstone Formation, undivided) to halite at the base of the Droitwich Halite Member.
Definition of Upper Boundary: Conformable, and drawn at the abrupt or slightly gradational upward transition from halite at the top of the Droitwich Halite Member to the reddish brown mudstone of the Sidmouth Mudstone Formation (undivided).
Thickness: 159m in type section
Geographical Limits: Droitwich area, Worcester Basin, west of Inkberrow Fault.
Parent Unit: Sidmouth Mudstone Formation (SIM)
Previous Name(s): Droitwich Halite Formation (-2753)
Keuper Saliferous Beds [Obsolete Name And Code: See DHT, NWHF, WHT] (KSB)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Saleway Borehole (SO96SW/1), near Droitwich, Worcestershire, full sequence proved between 248.41 m and 406.98 m depth. Poole and Williams (1981). 
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. 
Poole, E G and Williams, B J, 1980. The Keuper Saliferous Beds of the Droitwich area. Institute of Geological Sciences, Report No.81/2. 
Wills, L J. 1970. The Triassic succession in the central Midlands in its regional setting. Quarterly Journal of the Geological Society of London, Vol.126, 225-285. 
Howard, A S, Warrington, G, Ambrose, K, and Rees, J G. 2008. A formational framework for the Mercia Mudstone Group (Triassic) of England and Wales. British Geological Survey Research Report, RR/08/04. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E199