The BGS Lexicon of Named Rock Units — Result Details

Raised tidal flat deposits

Computer Code: RTFD Preferred Map Code: notEntered
Status Code: Full
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Raised tidal flat deposits are isostatically uplifted tidal flat deposits which crop out in part above high water mark. Normally a consolidated soft silty clay, with layers of sand, gravel and peat. Characteristically low relief.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: none recorded or not applicable
Parent Unit: Raised marine and coastal zone deposits (RMD)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
McMillan, A A and Powell, J H. 1999. The classification of artificial (man made) ground and natural superficial deposits. British Geological Survey Research Report, RR/99/04. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S031 E059 S084 E264