Computer Code: |
CWFL |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Paleogene Period (G)
— Pleistocene Epoch (QP) |
Lithological Description: |
Clay-with-flints is a reddish brown, stiff, clay containing abundant clasts of orange-brown stained nodular and broken flints, commonly associated with deposits of sand, sandy clay, silt, loam and pebbles that have been mixed with the clay by solution, cryoturbation and solifluction. Clay-with-flints as applied by BGS is a product of the solution of the chalk and the incorporation of residual material from Palaeogene deposits, mainly the Reading Formation. It occurs mainly in southern England resting on, and in places filling, solution pipes in the chalk. |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
none recorded or not applicable
|
Parent Unit: |
Residual deposits (RDEPS)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
McMillan, A A and Powell, J H. 1999. The classification of artificial (man made) ground and natural superficial deposits. British Geological Survey Research Report, RR/99/04. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |