The BGS Lexicon of Named Rock Units — Result Details

Power House Terrace Deposits (River Severn)

Computer Code: PSTT Preferred Map Code: symb
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Pebbly, silty sand/sandy silt; sandy gravel, silty clay and peat.
Definition of Lower Boundary: Where river deposits overlie bedrock or glacial deposits.
Definition of Upper Boundary: The present day terrace surface.
Thickness: To 6.5m
Geographical Limits: Bridgnorth (Shropshire) to Worcester - Severn Basin.
Parent Unit: Severn Valley Formation (SEVN)
Previous Name(s): 1st Terrace Deposits (River Severn) (-4852)
Low Power Station Terrace (-4853)
Power House Member (-470)
Power Station Terrace (-2986)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Man-made diversion of River Stour, Wilden, Warwickshire. 
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). 
Maddy, D, Green, C P, Lewis, S G and Bowen, D Q. 1995. Pleistocene Geology of the lower Severn Valley, UK. Quaternary Science Reviews, Vol 14, 209 - 222. 
Wills, L J, 1926. The geology and soils of Hartlebury Common. Proceedings of the Birmingham Natural History Philosophical Society, 15, 95-101. 
Shotton, F W and Coope, G R. 1983. Exposures in the Power House Terrace of the River Stour at Wilden, Worcestershire, England. Proceedings of the Geologists' Association, Vol.94, 33-44. 
Wills, L J, 1938. The Pleistocene development of the Severn from Bridgnorth to the Sea. Quarterly Journal of the Geological Society, 94, 161-242. 
Mitchell, G H, Pocock, R W, and Taylor, J H. 1962. Geology of the country around Droitwich, Abberley and Kidderminster. Memoir of the Geological Survey of Great Britain, Sheet 182 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E167 E182 E199