The BGS Lexicon of Named Rock Units — Result Details
Raglan Mudstone Formation [Obsolete: use MOCL]
| Computer Code: | RG | Preferred Map Code: | Rg |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Pridoli Epoch (SO) — Pridoli Epoch (SO) | ||
| Lithological Description: | [Obsolete: use MOCL] Red mudstones and silty mudstones with calcretes and sandstones. Townsend Tuff Bed 100m from top; Bishop's Frome Limestone at top. | ||
| Definition of Lower Boundary: | Conformable junction with underlying Downton Castle Sandstone Formation. | ||
| Definition of Upper Boundary: | Drawn at top of Bishop's Frome Limestone. | ||
| Thickness: | To c.800m | ||
| Geographical Limits: | Welsh Borderland. | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Red Downtonian [Obsolete Name And Code: See RG]
(RD)
Raglan Marl Group [Obsolete Name And Code: Use RG] (RMG) Raglan Marl Formation [Obsolete Name and Code: Use RG] (*938) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Area around the town of Raglan, Gwent. | ||
| Reference(s): | |||
| Welch, F B A and Trotter, F M. 1961. Geology of the country around Monmouth and Chepstow. Explanation of one-inch geological sheets 233 and 250. Memoir of the Geological Survey of Great Britain. | |||
| Barclay, W J, Jackson, D I, Mitchell, M, Owen, B, Riley, N J, White, D E, Strong, G E, and Monkhouse, R A. 1989. Geology of the South Wales Coalfield, Part II, the country around Abergavenny. Memoir of the British Geological Survey. | |||
| Waters, C N, Smith, K, Hopson, P M, Wilson, D, Bridge, D M, Carney, J N, Cooper, A H, Crofts, R G, Ellison, R A, Mathers, S J, Moorlock, B S P, Scrivener, R C, McMillan, A A, Ambrose, K, Barclay, W J, and Barron, A J M. 2007. Stratigraphical Chart of the United Kingdom: Southern Britain. British Geological Survey, 1 poster. | |||
| Brandon, A. 1989. Geology of the country between Hereford and Leominster. Memoir for 1:50 000 Geological Sheet 198. | |||
| White, D E and Lawson, J D, 1989. The Pridoli Series in the Welsh Borderland and south central Wales. 131-141 in A global standard for the Silurian System. Holland, C H and Bassett, M G (editors) National Museum of Wales, Geological Series No. 9, Cardiff. | |||
| Barclay, W J, Davies, J R, Hillier, R D, and Waters, R A. 2015. Lithostratigraphy of the Old Red Sandstone successions of the Anglo-Welsh Basin. British Geological Survey Research Report, RR/14/02. 96pp. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E198 E216 E232 E263 E230 E212 E197 E213 E180 E214 E199 E181 | |||