The BGS Lexicon of Named Rock Units — Result Details
Buxton Rock Member
| Computer Code: | BUR | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Pending Upgrade | ||
| Age range: | Ediacaran Period (AD) — Ediacaran Period (AD) | ||
| Lithological Description: | Massive, fine-grained silicified tuff. | ||
| Definition of Lower Boundary: | The Buxton Rock is regarded as the basal member of the Burway Formation.The base is generally sharply defined, usually overlying dark grey mudstones of the Stretton Shale Formation. However, it is not uncommon for turbiditic sandstone facies, characteristic of the Burway Formation, to appear below the Buxton Rock. Lithologies comparable to the Stretton Shale Formation also occur locally up to 15m above the Buxton Rock (Greig et al, 1968; Wilson, 2000). | ||
| Definition of Upper Boundary: | the unit has a sharply defined planar top, usually overlain by thinly interbedded turbiditic sandstones and mudstones of the Burway Formation (but see above). | ||
| Thickness: | 7 m thick. | ||
| Geographical Limits: | Welsh Borderlands, Shropshire, Church Stretton and the Long Mynd. | ||
| Parent Unit: | Burway Formation (BUGP) | ||
| Previous Name(s): | Buxton Rock [Obsolete Code: Use BUR]
(YSBB)
Buckstone Grit [Obsolete Name and Code: Use BUR] (-3255) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | Small Quarry, Ashes Hollow, about 70m northwest of Ashes cottage. Wilson, D. 2000. | ||
| Type Section | Buxton Quarry. Greig, D C, et al, 1968. | ||
| Reference(s): | |||
| Dunning, F W. 1975. Precambrian craton of Central England and the Welsh Borders. 83-96 in A correlation of the Precambrian rocks in the British Isles. Harris, A L and others (editors). Geological Society of London, Special Report No 6. | |||
| Lapworth C and Watts W W. 1910. Shropshire. 739-769 in Geology in the field; the Jubilee Volume of the Geologists' Association (1858-1908). Monckton H W and Herries R S (editors). (London: Edward Stanford). | |||
| Pauley J C. 1990. The Longmyndian Supergroup and related Precambrian sediments of England and Wales. 5-27 in Avalonian and Cadomain geology of the North Atlantic. Strachan R A and Taylor G K (editors). (Glasgow: Blackie). | |||
| Pauley J C. 1990. Sedimentology, structural evolution and tectonic setting of the Late Precambrian Longmyndian Supergroup of the Welsh Borderland, UK. 341-351 in the Cadomian Orogeny. D'Lemos R S, Strachan R A and Topley C G (editors). Geological Society of London Special Publication No. 51. | |||
| Wilson, D, 2000. Shropshire. 81-113 in Precambrian rocks of England and Wales. Carney, J N (editor). Geological Conservation Review Series No. 20. (Peterborough: Joint Nature Conservation Committee). | |||
| Greig D C, Wright, J E, Hains, B A and Mitchell, G H. 1968. Geology of the country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee. Memoir of the Geological Survey, Sheet 166 (England and Wales). (London: H.M.S.O.). 379pp. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E166 | |||