The BGS Lexicon of Named Rock Units — Result Details
Tintern Sandstone Formation
| Computer Code: | TSG | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Famennian Age (DA) — Tournaisian Age (CT) | ||
| Lithological Description: | Buff-yellow sandstone with local lenticles of pebbles and subordinate marl partings. | ||
| Definition of Lower Boundary: | Drawn at base of Tintern Sandstone Group where it rests conformably on quartz conglomerate of the Quartz Conglomerate Group. (Correlative of Tintern Sandstone Group and Quartz Conglomerate Group- Portishead Beds). | ||
| Definition of Upper Boundary: | Drawn at conformable upward passage from buff-yellow sandstone of Tintern Sandstone Group to limestone of Lower Limestone Shale Group. | ||
| Thickness: | Up to 75 m approx. | ||
| Geographical Limits: | Forest of Dean, Gloucestershire. | ||
| Parent Unit: | Portishead Subgroup (POB) | ||
| Previous Name(s): | Tintern Sandstone Group [Obsolete Name and Code: Use TSG]
(-1240)
Tintern Sandstone [Obsolete Name and Code: Use TSG] (-4938) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Monmouth area - Forest of Dean. | ||
| Reference(s): | |||
| 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. | |||
| 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. | |||
| Kellaway, G A and Welch, F B A. 1955. The Upper Old Red Sandstone and Lower Carboniferous rocks of the Bristol and the Mendips compared with those of Chepstow and the Forest of Dean. Bulletin of the Geological Survey of Great Britain, No.9, p.1-21. | |||
| Trotter, F M, 1942. Geology of the Forest of Dean and Iron-ore Field. Memoir of the Geological Survey of Great Britain. | |||
| Welch, F B A, "In" Eastwood, T, 1938. Summary of Progress. Geological Survey of Great Britain for 1937, p.29-30. | |||
| 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. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E234 E233 E250 E251 E265 | |||