Computer Code: |
STHSG |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Pleistocene Epoch (QP)
— Pleistocene Epoch (QP) |
Lithological Description: |
The Member consists of beds of matrix-supported gravel separated by thick beds of horizontally bedded sand. Up to 92% of the clast content is flint, with a small (c.6%) subsidiary quartzose content. |
Definition of Lower Boundary: |
The Stow Hill Sand and Gravel Member rests unconformably on the upper surface of the Bacton Green Till Member between Bacton Green [TG338345] and Mundesley [TG319361], and on the Weybourne Town Till Member within large, tectonically-controlled synclines between Trimingham [TG279389] and Sidestrand [TG265397]. |
Definition of Upper Boundary: |
The sand and gravel deposit is truncated by the ground surface which forms its upper boundary. |
Thickness: |
The maximum observed thickness of the deposit is 8m, in the Trimingham area. |
Geographical Limits: |
Coastal sections between Paston and Sidestrand. |
Parent Unit: |
Briton's Lane Formation (BRLA)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Paston Cliffs between Bacton Green and Mundesley show approximately 8m of sand and gravel overlying the Mundesley Sand and Bacton Green Till members. Lunkka, 1994. |
Reference(s): |
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. |
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. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |