Computer Code: |
WIHG |
Preferred Map Code: |
symb |
Status Code: |
Full |
Age range: |
Anglian Stage (QA)
— Anglian Stage (QA) |
Lithological Description: |
Gravel, variably clayey and sandy. |
Definition of Lower Boundary: |
Erosional contact with Tertiary-Cretaceous bedrock. |
Definition of Upper Boundary: |
Terrace surface. |
Thickness: |
1-8m |
Geographical Limits: |
Thames Valley. |
Parent Unit: |
Colchester Formation (CCHR)
|
Previous Name(s): |
Plateau Gravel
(PLG)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Area |
Thames valley below Goring. |
Reference(s): |
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. |
Saner, B R M and Wooldridge, S W, 1929. River development in Essex. Essex Naturalist. Vol.22, 244-250. |
Gibbard, P L, 1985. Pleistocene history of the Middle Thames Valley. (London: Cambridge University Press.) |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E268
|