The BGS Lexicon of Named Rock Units — Result Details

Sussex Catchments Subgroup

Computer Code: SXCAT Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Holocene Epoch (QH)
Lithological Description: Mainly river terrace sand and gravel and alluvial floodplain silt, silty clay and sand, together with related organic and mass movement deposits of the rivers Ouse (Sussex), Arun, Rother (Sussex) and Cuckmere.
Definition of Lower Boundary: Unconformable on Cretaceous bedrock.
Definition of Upper Boundary: Ground surface.
Thickness: To 10m
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 (-1852)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Mainly river terrace sand and gravel and alluvial floodplain silt, silty clay and sand, together with related organic and mass movement deposits of the catchments of the Ouse (Sussex), Arun, Sussex Rother and Cuckmere and other rivers and their tributaries which flow southwards from the Weald to the Englsh Channel. 
Reference(s):
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E314 E315 E316 E328 E329 E330 E331