| Computer Code: |
CODT |
Preferred Map Code: |
CT |
| Status Code: |
Full |
| Age range: |
Anglian Stage (QA)
— Anglian Stage (QA) |
| Lithological Description: |
Consolidated, red silty clay or clayey silt with pebbles to boulders of local and exotic lithologies. |
| Definition of Lower Boundary: |
Placed generally where the till overlies the clays and silts of the underlying White House Silts. Locally, the base rests on Mathon Sand and Gravel. |
| Definition of Upper Boundary: |
Placed at junction of red till and overlying grey to yellow-brown stony clay solifluction/gelifluction deposits of Colwall Gelifluctate. |
| Thickness: |
Maximum proved thickness of c.10 metres. |
| Geographical Limits: |
Cradley - Glynch Brook Valleys, Herefordshire. |
| Parent Unit: |
Risbury Glacigenic Formation (RISB)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Northeast of the village of Coddington, Herefordshire. |
| Reference Section |
Section (now obscured) at Warner's Farm Pit, Mathon. Barclay, et al, 1992. |
| Reference Section |
Ditch section near Colwall Church, Colwall. Barclay, et al, 1992. |
| Reference(s): |
| Barclay, W J, Brandon, A, Ellison, R A, and Moorlock, B S P. 1992. A Middle Pleistocene palaeovalley-fill west of the Malvern Hills. Journal of the Geological Society of London, Vol. 149, 75-92. |
| 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: |
|
E199
|
