The BGS Lexicon of Named Rock Units — Result Details

Hastings Beds (Subgroup)

Computer Code: HAS Preferred Map Code: HB
Status Code: Pending Upgrade
Age range: Berriasian Age (KR) — Valanginian Age (KV)
Lithological Description: Ferruginous sandstones, siltstones and shales.
Definition of Lower Boundary: Base of silts and sands of Ashdown Formation on soft mudstones of the Upper Purbeck.
Definition of Upper Boundary: Top of highest sandstone of the Tunbridge Wells Sand Formation beneath clayey silts and silty clays (without sandstones) of the Weald Clay Formation.
Thickness: 0-400m
Geographical Limits: The Weald.
Parent Unit: Purbeck Group (PB)
Previous Name(s): Hastings Sands (-306)
Hastings Beds (-2230)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Type sections/reference sections for component formations given by Bristow and Bazley, 1972. From the base these are the Ashdown Formation, the Wadhurst Clay Formation and the Tunbridge Wells Sand Formation 
Reference(s):
Rawson, P F, Curry, D, Dilley, F C, Hancock, J M, Kennedy, W J, Neale, J W, Wood, C J and Worrsam, B C. 1978. A correlation of Cretaceous rocks in the British Isles. Geological Society of London, Special Report No.9. 
Bristow, C R and Bazley, R A. 1972. Geology of the country around Royal Tunbridge Wells. Memoir of the Geological Survey of Great Britain, sheet 303 (England and Wales). 
Rawson, P F. 1992. Cretaceous, 355-388 in Duff, P McL D and Smith, A J (editors), Geology of England and Wales. (London: Geological Society.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E286 E287 E288 E302 E303 E304 E305 E318 E333 E319 E320 E321 E331 E289