The BGS Lexicon of Named Rock Units — Result Details

Strensham Sand And Gravel Member

Computer Code: STRSG Preferred Map Code: notEntered
Status Code: Full
Age range: Pleistocene Epoch (QP) — Pleistocene Epoch (QP)
Lithological Description: Predominantly cold phase sands and gravels that underlie a terrace supposedly intermediate in height between the Cropthorne (4) and Pershore members (5) of the Avon Fourth Terrace of Tomlinson (1925) and of BGS maps. Dominated by clasts of "Bunter" quartz/quartzite lithologies with subordinate flint. Terrace surface at type locality approximately 40-42m OD, ie, some 30m above the modern Avon. Overlies the organic Strensham Court Bed (Bowen, 1999), = the Strensham Bed of de Rouffignac (1995), assigned to Stage 7. (See Supplementary Information Description).
Definition of Lower Boundary: Unconformable channelled base, resting on Triassic bedrock.
Definition of Upper Boundary: Ground surface.
Thickness: 0 to c.4m
Geographical Limits: Only currently recognised at Upper Strensham SO905 395 (BGS Sheets 199, 216).
Parent Unit: Warwickshire Avon Valley Formation (AVON)
Previous Name(s): Avon Fifth Terrace Deposits (-3059)
Pershore Sand And Gravel Member (PERT)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Section at Upper Strensham, between Pershore and Tewkesbury, Worcs. de Rouffignac, et al. 1995. 
Reference(s):
Barclay, W J, Ambrose K, Chadwick, R A and Pharaoh, T C. 1997. Geology of the country around Worcester. Memoir of the British Geological Survey, Sheet 199 (England and Wales). 
de Rouffignac, C, Bowen, D Q, Coope, G R, Keen, D H, Lister, A M, Maddy, D, Robinson, E, Sykes, G A and Walker, M J C. 1995. Late Middle Pleistocene deposits at upper Strensham, Worcestershire., England. Journal of Quaternary Science, Vol.10, 15-31. 
Worssam, B C, Ellison, R A and Moorlock, B S P. 1989. Geology of the country around Tewkesbury. Memoir of the British Geological Survey, Sheet 216 (England and Wales). 
Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E199 E216