The BGS Lexicon of Named Rock Units — Result Details
White-Leaved Oak Shale Formation
| Computer Code: | WOA | Preferred Map Code: | WOa |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Merioneth Series (EM) — Merioneth Series (EM) | ||
| Lithological Description: | Dark grey mudstones. | ||
| Definition of Lower Boundary: | Faulted junction with Hollybush Sandstone. | ||
| Definition of Upper Boundary: | Nowhere exposed; probably conformable junction with Bronsil Shale. | ||
| Thickness: | 150-250m | ||
| Geographical Limits: | Southwest of Raggedstone Hill; west side of Midsummer Hill, both at south end of Malvern Hills; small proving in well at West Malvern. | ||
| Parent Unit: | Not Applicable (-) | ||
| Previous Name(s): | Black Shales of Malvern [Obsolete Name and Code: Use WOA]
(-1926)
White-Leaved Oak Shales (-616) White-Leaved-Oak Shales [Obsolete Code: Use WOA] (WLSH) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | White-leaved Oak village, Hereford-Worcester. | ||
| Reference(s): | |||
| 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). | |||
| Groom, T T, 1902. The sequence of the Cambrian and associated beds of the Malvern Hills. Quarterly Journal of the Geological Society of London, Vol.58, p.59-135. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E216 | |||