The BGS Lexicon of Named Rock Units — Result Details

Albion Glacigenic Group

Computer Code: ALBI Preferred Map Code: ALB
Status Code: Full
Age range: Cromerian Stage (QC) — Wolstonian Stage (QO)
Lithological Description: Tills (diamictons), sands, gravels, silts and clays. Sands and gravels contain clasts derived from rocks cropping out throughout northern, central and eastern England, Scotland and Wales, and offshore.
Definition of Lower Boundary: Sharp, planar unconformable contact with units of the Dunwich and/or Crag groups, or bedrock.
Definition of Upper Boundary: Ground surface or unconformable contact with units of the Caledonia Glacigenic Group, the Britannia Catchments Group or the British Coastal Deposits Group.
Thickness: Up to 120 m.
Geographical Limits: The whole of Great Britain lying to the north of the Anglian glacial limit crossing southern England, but mainly occuring between the Anglian and Devension glacial limits.
Parent Unit: Great Britain Superficial Deposits Supergroup (GBG)
Previous Name(s): South Britain Glacigenic Group [Obsolete Name And Code: See ALBI And CALI] (SBRG)
Older Drift (*792)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  The deposits occur mainly between the glacial limits of the Devensian and Anglian ice-sheets. Isolated remnants are present to north of the Devensian glacial limit. See the stratotypes of the constituent formations. 
Reference(s):
McMillan, A A, Hamblin, R J O and Merritt, J W. 2005. An overview of the lithostratigraphical framework for the Quarternary and Neogene deposits of Great Britain (onshore). British Geological Survey Research Report RR/04/04. 
Boulton, G S. 1992. Quaternary. 413-444 in Duff, P M D and Smith, A J (eds) Geology of England and Wales. [London: The Geological Society.] 
Ehlers, J, Gibbard, P L and Rose, J [editors]. 1991. Glacial deposits in Great Britain and Ireland. Balkema: Rotterdam, 580pp. 
Boulton, G S, Peacock, J D and Sutherland, D G. 2002. Quaternary. 409-430 in Trewin, N H [editor], Geology of Scotland. [4th edition]. [London: The Geological Society.] 
Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. 
McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable