Albion Glacigenic Group

Albion Glacigenic Group
Stratigraphic range: Cromerian to Ipswichian age
Type Group
Unit of Great Britain Superficial Deposits Supergroup
Underlies unconformable beneath Caledonia Glacigenic Group, Britannia Catchments Group, British Coastal Deposits Group
Overlies bedrock
Thickness up to 120m
Lithology
Primary till (diamicton)
Other sand, gravel, silt and clay
Location
Country England, Scotland, Wales
Extent all of Great Britain north of the southern limit of Anglian glacial limit, but south of the Devensian glacial limit

The Albion Glacigenic Group is a Quaternary lithostratigraphic group (a sequence of rock strata or other definable geological units) present in those parts of Great Britain which lie north of the southern limit of Anglian glaciation, but south of the Devensian glacial limit, and also includes deposits in the Isle of Man and offshore areas. It consists of a wide range of unconsolidated superficial deposits including till, sands, gravels, silts and clay of glacial, glaciofluvial, glaciolacustrine and glaciomarine origin. Its upper boundary is the present day ground surface or unconformable contact with units of the Caledonia Glacigenic Group, the Britannia Catchments Group or the British Coastal Deposits Group. It was previously known as the South Britain Glacigenic Group or Older Drift[1]

The following subgroups are defined by geographical areas of Great Britain:[2]

References

  1. ↑ http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=ALBI
  2. ↑ MCMILLAN, A A, HAMBLIN, R J O, and MERRITT, J W. 2005. An overview of the lithostratigraphical framework for the Quaternary and Neogene deposits of Great Britain (Onshore). British Geological Survey Research Report RR/04/04 38pp. p16 ISBN 0 85272 516 7
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