| Computer Code: |
SXCAT |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Cromerian Stage (QC)
— Holocene Epoch (QH) |
| Lithological Description: |
Floodplain alluvium comprising soft silts and clays, commonly with beds of peat and a basal bed of sand and gravel. River terrace deposits are largely sand and gravel. Peat is a minor component, and minor marine deposits are included where they are intercalated in dominantly fluvial formations. |
| Definition of Lower Boundary: |
Unconformable on Lower Cretaceous bedrock. |
| Definition of Upper Boundary: |
Ground surface. |
| Thickness: |
Up to 10 m. |
| Geographical Limits: |
The entire area covered by the catchments of Sussex (Ouse, Arun, Rother and Cuckmere and other rivers) that flow southwards from the Weald to the English Channel. |
| Parent Unit: |
Britannia Catchments Group (BCAT)
|
| Previous Name(s): |
Sussex Valleys Formation [Obsolete Name and Code: Use SXCAT]
(-1852)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Catchments of the Ouse, Arun, Sussex Rother and Cuckmere and other rivers and their tributaries which flow southwards from the Weald to the English Channel. |
| Reference(s): |
| Gibbard, P L. 1999. South and southeast England. 61-62 in Bowen, D Q (Editor), A revised correlation of the Quaternary deposits in the British Isles. Geological Society of London Special Report, No.23. |
| McMillan, A A. 2005. A provisional Quaternary and Neogene lithostratigraphical framework for Great Britain. (Netherlands: Journal of Geosciences), 84-2, 87-107. |
| 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. |
| Stoker, M S, McMillan, A A and Waters, C N. Quaternary Stratigraphical Chart: Southern Britain. British Geological Survey, 1 poster. |
| McMillan, A A, Hamblin, R J O and Merritt, J W. 2005. An overview of the lithostratigraphical framework for the Quarternary and Neogene deposits of Great Britain (onshore). British Geological Survey Research Report RR/04/04. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E314
E315
E316
E328
E329
E330
E331
|
