The BGS Lexicon of Named Rock Units — Result Details

Trimingham Sand Member

Computer Code: TRIMS Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Horizontally bedded and massive sand with sporadic ripple structures.
Definition of Lower Boundary: Erosional contact with the underlying Trimingham Clay Member, represented by a lithological change from clay to sand.
Definition of Upper Boundary: The sand facies of the Trimingham Sand Member is truncated by the till facies of the Weybourne Town Till Member. In places that sands have been sheared and dragged into small isoclinal fold structures.
Thickness: A maximum of 0.3m is exposed at the stratotype locality.
Geographical Limits: Coastal cliff sections between Trimingham and Sidestrand, north Norfolk.
Parent Unit: Sheringham Cliffs Formation (SMCL)
Previous Name(s): Trimingham Sand And Clay Member [Obsolete Name And Code: See TRIMC And TRIMS] (TRIM)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  The top of coastal cliff sections northwest of Trimingham, north Norfolk, shows the Trimingham Sand Member overlying the Trimingham Clay Member. Lunkka, 1994. 
Reference(s):
Lee, J R, Booth, S J, Hamblin, R J O, Jarrow, A M, Kessler, H, Moorlock, B S P, Morigi, A N, Palmer, A, Riding, J B and Rose, J. 2004. A new stratigraphy for the glacial deposits around Lowestoft, Great Yarmouth, North Walsingham and Cromer, East Anglia, UK. Bulletin of the Geological Society of Norfolk, Vol.53, 3-60. 
Lunkka, J P. 1994. Sedimentation and lithostratigraphy of the North Sea Drift and Lowestoft Till Formations in the coastal cliffs of northeast Norfolk, England. Journal of Quaternary Science, Vol. 9, 203-233. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable