The BGS Lexicon of Named Rock Units — Result Details
Upper Quarried Limestone Member
| Computer Code: | UQL | Preferred Map Code: | UQL |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Homerian Age (SH) — Homerian Age (SH) | ||
| Lithological Description: | Limestone, grey, bioclastic, micritic with abundant shelly fossils and thin calcareous mudstone partings; reefs (bioherms) locally present. | ||
| Definition of Lower Boundary: | Base of limestone-dominated beds overlying calcareous mudstone-dominated Nodular Limestone Member. | ||
| Definition of Upper Boundary: | Base of pale grey silty calcareous mudstone with sporadic limestone nodules of the overlying Lower, Middle and Upper Elton formations (undifferentiated). These are equivalent to Lower Ludlow Shales. | ||
| Thickness: | 8.6-10.4m at Wren's Nest, Dudley. | ||
| Geographical Limits: | West Midlands. | ||
| Parent Unit: | Much Wenlock Limestone Formation (WEL) | ||
| Previous Name(s): | Quarried Limestone Member, Upper [Obsolete Code: Use UQL]
(QLU)
Upper Wenlock Limestone [Obsolete Name And Code: Use WEL] (UWL) Upper Quarried Limestone [Obsolete Name and Code: Use UQL] (-4953) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Wren's Nest Geological Trail, Dudley; NCC Quarry trench, Mons Hill; Locality 1 of Cutler and others, 1990. | ||
| Reference Section | Wren's Nest Geological Trail, Dudley; NCC 'The Fossil Trench'; Locality 5 of Cutler and others, 1990. | ||
| Reference(s): | |||
| Butler, A J. 1939. The stratigraphy of the Wenlock Limestone of Dudley. Quarterly Journal of the Geological Society of London, 95, 37-74. | |||
| Cutler, A, Oliver, P G and Reid, C G R, 1990. Wren's Nest National Nature Reserve. Geological Handbook and Field Guide. Nature Conservancy Council/Dudley MBC. | |||
| Butler, A J. 1937. On Silurian and Cambrian rocks encountered in a deep boring at Walsall, South Staffordshire. Geological Magazine, Vol. 74, 241-257. | |||
| Bassett, M G. 1974. Review of the stratigraphy of the Wenlock Series of the Welsh Borderlands and South Wales. Palaeontology, 17, 745-777. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E168 E154 E167 | |||