The BGS Lexicon of Named Rock Units — Result Details

Enfield Silt Member

Computer Code: ESI Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Holocene Epoch (QH)
Lithological Description: Varies from silt to clay, commonly yellow-brown and massive. [Generic description].
Definition of Lower Boundary: Rests on river terrace deposits.
Definition of Upper Boundary: At surface.
Thickness: 1 to 5m, average 2m in thickness.
Geographical Limits: Lea Valley tributary of Thames. North London, Sheet 256.
Parent Unit: Maidenhead Formation (MNHD)
Previous Name(s): Brickearth (BRK)
Enfield Silt Formation (-1531)
Alternative Name(s): none recorded or not applicable
Reference Section  Borehole sites at TQ 344 928 at Edmonton and 1200m to the west (TQ 328 931). 
Strange, P J, 1992. A new nomenclature for the River Terrace Deposits of North London. British Geological Survey Technical Report, WA/92/52. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: