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): OLDER DRIFT
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  The whole of Great Britain lying to the north of the Anglian glacial limit crossing southern England. 
Reference(s):
McMillan, A.A., Hamblin, R.J.O. and Merritt, J.W. 2004. An overview of the lithostratigraphical framework for Quaternary and Neogene deposits of Great Britain [onshore]. British Geological Survey Research Report. RR/04/04. 
Ehlers, J, Gibbard, P L and Rose, J [editors]. 1991. Glacial deposits in Great Britain and Ireland. Balkema: Rotterdam, 580pp. 
Bowen, D Q (Editor). 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society of London Special Report, No.23. 
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.] 
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.] 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable