The BGS Lexicon of Named Rock Units — Result Details

Oakwood Glacigenic Formation

Computer Code: OKWDG Preferred Map Code: notEntered
Status Code: Full
Age range: Anglian Stage (QA) — Wolstonian Stage (QO)
Lithological Description: A mixed glacigenic sequence of till (sandy, gravelly clay with cobbles and boulders) and silt, sand and gravel possibly correlated with the Ridgacre Formation of the Birmingham area.
Definition of Lower Boundary: Irregular, unconformable contact with bedrock.
Definition of Upper Boundary: Overlain unconformably by sand of the Chelford Sand Formation (Irish Sea Coastal Glacigenic Subgroup).
Thickness: Unknown but probably <5m.
Geographical Limits: Cheshire.
Parent Unit: Irish Sea Coast (Albion) Glacigenic Subgroup (ISCAG)
Previous Name(s): Oakwood Formation (-1102)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Oakwood Quarry, Chelford, Cheshire. Worsley, P. 1991. 
Reference(s):
Worsley, P. 1991. Glacial deposits of the lowlands between the Mersey and Severn rivers. 203-211 in Ehlers, J, Gibbard, P L and Rose, J (editors), Glacial deposits in Great Britain and Ireland. 
Worsley, P, Coope, G R, Good, T R, Holyoak, D T and Robinson, J E. 1983. A Pleistocene succession from beneath Chelford Sands at Oakwood Quarry, Chelford, Cheshire. Geological Journal. Vol.18. 307-324. 
Maddy, D. 1999. English Midlands Chapter 3 in Bowen, D Q (Editor), A revised correlation of the Quaternary deposits in the British Isles. Geological Society Special Report, No.23. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable