The BGS Lexicon of Named Rock Units — Result Details
Bridgnorth Sandstone Formation
| Computer Code: | BRI | Preferred Map Code: | Bri |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Cisuralian Epoch (PLC) — Cisuralian Epoch (PLC) | ||
| Lithological Description: | Cross bedded aeolian sandstones, mainly brick red, soft, medium-grained. Buff mottling common. | ||
| Definition of Lower Boundary: | Unconformable on Coal Measures and interpreted early Permian breccias. | ||
| Definition of Upper Boundary: | Unconformably overlain by Kidderminster Formation. | ||
| Thickness: | 183m in type area. Up to 250m elsewhere. | ||
| Geographical Limits: | Worcestershire, Staffordshire, Shropshire. (Worcester Basin, Stafford Basin). | ||
| Parent Unit: | New Red Sandstone Supergroup (NRS) | ||
| Previous Name(s): | Lower Mottled Sandstone [Obsolete Name and Code: Use BRI, KNSF, LNS]
(-4496)
Lower Bunter [Obsolete Name and Code: Use BRI] (-3239) Dune sandstone [Obsolete Name and Code: Use BRI] (-3238) Bridgnorth Sandstone Formation [Obsolete Code: Use BRI] (BS) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Bridgnorth, Shropshire. Sections around the town (Whitehead and Pocock, 1947). | ||
| Reference(s): | |||
| Wills, L J, 1948. The palaeogeography of the Midlands. London, Liverpool. | |||
| Smith, D B and 4 others, 1974. A correlation of Permian rocks in the British Isles. Journal of the Geological Society of London, Vol.130, 1-45. | |||
| Whitehead, T H and Pocock, R W. 1947. Geology of the country around Dudley and Bridgnorth. Memoir of the British Geological Survey, Sheet 167. (England and Wales). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E216 E139 E167 | |||