| 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 [Obsolete Name and Code: Use OKWDG]
(-1102)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Oakwood Quarry, Chelford, Cheshire. Worsley, P. 1991. |
| Reference(s): |
| 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. |
| 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. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
