The BGS Lexicon of Named Rock Units — Result Details
Medway River Terrace Deposits 4
Computer Code: | ME4 | Preferred Map Code: | symb |
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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): | Fourth Terrace [Obsolete Name and Code: Use ME4]
(-2938)
River Terrace Deposits, 4 (Medway) [Obsolete Name and Code: Use ME4] (-2321) |
||
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 |