The BGS Lexicon of Named Rock Units — Result Details

Westland Green Gravel Member

Computer Code: WGGR Preferred Map Code: symb
Status Code: Full
Age range: Early Pleistocene (QPE) — Mid Pleistocene (QPM)
Lithological Description: 1-5 m of variably sandy and clayey gravel.
Definition of Lower Boundary: Erosional base on Palaeogene-Neogene (Tertiary) to Cretaceous bedrock.
Definition of Upper Boundary: Terrace form.
Thickness: 1-5 m.
Geographical Limits: Thames Valley and southern East Anglia.
Parent Unit: Sudbury Formation (SBRY)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Thames Valley: Goring and southern East Anglia. 
Reference(s):
Whiteman, C A and Rose, J. 1992. Thames river sediments of the British Early and Middle Pleistocene. Quarterly Science Reviews, Vol.11, 363-375. 
Whiteman, C A. 1992. The palaeogeography and correlation of pre-Anglian-Glaciation terraces of the River Thames in Essex and the London Basin. Proceedings of the Geologists' Association, Vol.103, 37-56. 
Hey, R W, 1966. Highly quartzose pebble gravels in the London Basin. Proceedings of the Geologists' Association, Vol.76, 403-420. 
Gibbard, P L, 1985. Pleistocene history of the Middle Thames Valley. (London: Cambridge University Press.) 
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:
E268