The BGS Lexicon of Named Rock Units — Result Details
Upper Abdon Limestone Member
| Computer Code: | UAL | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Pragian Age (DP) — Emsian Age (DE) | ||
| Lithological Description: | Mottled red and grey, massive to rubbly, argillaceous to sandy limestone (fossil soil carbonate or calcrete) and associated calcareous sandstones, siltstones and conglomerates. | ||
| Definition of Lower Boundary: | At base of lowest limestone bed. | ||
| Definition of Upper Boundary: | At top of highest limestone bed, which is locally truncated by an irregular erosion surface overlain by red pebbly sandstone of the Clee Formation. | ||
| Thickness: | 4.6 to 5.2 m. | ||
| Geographical Limits: | Brown Clee Hill, Shropshire. | ||
| Parent Unit: | Freshwater West Formation (FWW) | ||
| Previous Name(s): | Upper Abdon Limestone [Obsolete Name and Code: Use UAL]
(-1248)
Abdon Limestone Formation [Obsolete Name And Code] (ABL) Abdon Limestone Formation [Obsolete Name And Code] (ABL) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Crag exposures east of the village of Abdon, Shropshire [SO 587 866 to SO 588 869]. Allen, 1961; Greig et al., 1968. | ||
| Reference(s): | |||
| 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. | |||
| Ball, H W, and Dineley, D L. 1961. The Old Red Sandstone of Brown Clee Hill and the adjacent area. Part 1. Stratigraphy. Bulletin of the British Museum (Natural History), Geology Series. [London: British Museum (Natural History).] 177-242. | |||
| Allen, J R L. 1961. The highest Lower Old Red Sandstone of Brown Clee Hill, Shropshire. Proceedings of the Geologists' Association, Vol. 72, 205-219. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E166 | |||