The BGS Lexicon of Named Rock Units — Result Details

Thorpeness Member

Computer Code: THOPN Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Comprises 20 to 30 m of shelly sands with thin clay laminae.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: 20 to 30 m.
Geographical Limits: none recorded or not applicable
Parent Unit: Red Crag Formation (RCG)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  BGS registered borehole TM46SE37 [TM 471 622], Aldeburgh-Sizewell transect, from -13.3 to -34.3 m OD (Zalasiewicz et al., 1988). 
Reference(s):
McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. 
Zalasiewicz, J A, Mathers, S J, Hughes, M J, Gibbard, P L, Peglar, S M, Harland, R, Nicholson, R A, Boulton, G S, Cambridge, P and Wealthall, G P. 1988. Stratigraphy and palaeoenvironments of the Red Crag and Norwich Crag formations between Aldeburgh and Sizewell, Suffolk, England. Philosophical Transactions of the Royal Society of London, Vol.B322, 221-272. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable