The BGS Lexicon of Named Rock Units — Result Details
Wasperton Sand and Gravel Member
| Computer Code: | WAT | Preferred Map Code: | symb |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Late Pleistocene (QPL) — Late Pleistocene (QPL) | ||
| Lithological Description: | Predominantly cold phase sands and gravels that underlie the Avon Second Terrace of Tomlinson (1925) and of BGS Maps. Dominated by clasts of "Bunter" quartz/quartzite lithologies with subordinate flint. Locally includes the organic Fladbury Bed, which is "Mid Devensian" although the precise age is controversial. Probably correlates with Holt Heath Member of the Severn Valley Formation. | ||
| Definition of Lower Boundary: | Unconformable, commonly channelled base, resting on Wolston Formation or Baginton Formation in upper Avon or farther downstream (beyond Coventry) on Lower Jurassic or Triassic bedrock. | ||
| Definition of Upper Boundary: | Ground surface. | ||
| Thickness: | 0 to c. 6 m. | ||
| Geographical Limits: | Avon Valley, Rugby to Tewskesbury (BGS Sheets 183, 184, 199, 200, 201, 216). | ||
| Parent Unit: | Warwickshire Avon Valley Formation (AVON) | ||
| Previous Name(s): | Second Terrace Deposits [Obsolete Name and Code: Use SURA, THSG, WAT]
(-4908)
Wasperton Terrace Deposits [Warwickshire Avon] [Obsolete Name and Code: Use WAT] (-3118) No.2 Terrace [Deposits] [Obsolete Name and Code: Use WAT] (-3752) Avon Second Terrace [Deposits] [Obsolete Name and Code: Use WAT] (-1264) Second or Wasperton Terrace [Deposits] [Obsolete Name and Code: Use WAT] (-1905) Wasperton Member [Obsolete Name and Code: Use WAT] (*350) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | Former gravel quarry 2 km west of Brandon, near Coventry. Shotton, 1968; Kelly, 1968; Coope, 1968. | ||
| Type Section | Wasperton, near Warwick. Dawson, 1987. | ||
| Reference(s): | |||
| Tomlinson, M E. 1925. The river terraces of the lower valley of the Warwickshire Avon. Quarterley Journal of the Geological Society of London. Vol.81, 137-169. | |||
| Williams, B J and Whittaker, A. 1974. Geology of the country around Stratford-upon-Avon and Evesham. Memoir of the Geological Survey of Great Britain Sheet 200 (England and Wales). | |||
| Maddy, D, Keen, D H, Bridgland, D R and Green, C P. 1991. A revised model for the Pleistocene development of the River Avon, Warwickshire. Journal of the Geological Society of London, Vol.148, 473-484. | |||
| Shotton, F W. 1953. The Pleistocene deposits of the area between Coventry, Rugby and Leamington and their bearing on the topographic development of the Midlands. Philosophical Transactions of the Royal Society of London, Vol.B237, 209-260. | |||
| 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). | |||
| Coope, G R. 1968. An insect fauna from the Mid-Weichselian deposits at Brandon, Warwickshire. Philosophical Transactions of the Royal Society of London, Vol.B254, 425-458. | |||
| Dawson, M R. 1987. Sedimentological aspects of periglacial terrace aggradation: case study from the English Midlands. 265-274 in Boardman, J (Editor), Periglacial processes and landforms in Britain and Ireland. [Cambridge: Cambridge University Press.] | |||
| Edmonds, E A, Poole, E G and Wilson, V. 1965. Geology of the country around Banbury and and Edge Hill. Memoir of the Geological Survey of Great Britain, Sheet 201 (England and Wales). | |||
| Kelly, M R. 1968. Floras of Middle and Upper Pleistocene age from Brandon, Warwickshire. Philosophical Transactions of the Royal Society of London, Vol.B254, 401-415. | |||
| Old, R A, Sumbler, M G and Ambrose, K, 1987. Geology of the country around Warwick. Memoir of the British Geological Survey, Sheet 184 (England and Wales). | |||
| Shotton, F W. 1968. The Pleistocene succession around Brandon, Warwickshire. Philosophical Transactions of the Royal Society of London. Vol.B254, 387-400. | |||
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. | |||
| Stoker, M S, McMillan, A A and Waters, C N. Quaternary Stratigraphical Chart: Southern Britain. British Geological Survey, 1 poster. | |||
| 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). | |||
| Old R A, Hamblin, R J O, Ambrose, K, and Warrington G. 1991. Geology of the country around Redditch. Memoir of the British Geological Survey, Sheet 183 (England and Wales). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E199 E183 E184 E200 E201 E216 | |||