The BGS Lexicon of Named Rock Units — Result Details

Medway River Terrace Deposits 4

Computer Code: ME4 Preferred Map Code: symb
Status Code: Full
Age range: Pleistocene Epoch (QP) — Holocene Epoch (QH)
Lithological Description: Sand and gravel, locally with lenses of silt, clay or peat. [Generic description]. Gravel characterized by clasts of Wealden sandstone, siltstone and, sporadically, flint.
Definition of Lower Boundary: Overlies bedrock.
Definition of Upper Boundary: At surface, or locally overlain by head and brickearth.
Thickness: Not specified.
Geographical Limits: Royal Tunbridge Wells district.
Parent Unit: Medway Valley Formation (MEVA)
Previous Name(s): River Terrace Deposits, 4 (Medway) (-2321)
Fourth Terrace (-2938)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Four small patches of gravel occur at Chafford Park. Bristow and Bazley, 1972. 
Reference(s):
Bristow, C R and Bazley, R A. 1972. Geology of the country around Royal Tunbridge Wells. Memoir of the Geological Survey of Great Britain, sheet 303 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E303