The BGS Lexicon of Named Rock Units — Result Details
Kidderminster Formation [Obsolete: use CHES]
| Computer Code: | KDM | Preferred Map Code: | Kdm |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Early Triassic Epoch (TE) — Early Triassic Epoch (TE) | ||
| Lithological Description: | [Obsolete: use CHES] Pebble conglomerates and reddish brown sandstones. The sandstones are cross-bedded and pebbly. The conglomerates have a reddish brown sandy matrix and consist mainly of pebbles of brown or purple quartzite, with quartz conglomerate and vein quartz. (Mitchell and others, 1962). | ||
| Definition of Lower Boundary: | Unconformable on the Bridgnorth Sandstone, the Clent Breccia or older rocks. | ||
| Definition of Upper Boundary: | Passage upwards into the Wildmoor Sandstone Formation, the upper boundary being placed arbitrarily above the highest pebble bed in the sequence. | ||
| Thickness: | 0 to 200m | ||
| Geographical Limits: | Worcestershire, West Midlands, south Staffordshire and west Warwickshire. (Worcester Basin, Stafford Basin, Knowle Basin). | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Bunter Pebble Beds [Obsolete Name And Code: Use CHES]
(BNP)
Kidderminster Conglomerate Formation (-990) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Kidderminster and its vicinity, Worcestershire. Numerous exposures in and around the town. | ||
| Reference(s): | |||
| Ambrose, K, Hough, E, Smith, N J P, and Warrington, G. 2014. Lithostratigraphy of the Sherwood Sandstone Group of England, Wales and south-west Scotland. British Geological Survey Research Report RR/14/01. | |||
| Smith, D B, Brunstrom, R G W, Manning, D I, Simpson, S and Shotton, F W. 1974. A correlation of Permian rocks in the British Isles. Geological Society of London Special Report No. 5. | |||
| Warrington, G, Audley-Charles, M G, Elliott, R E, Evans, W B, Ivimey-Cook, H C, Kent, P E, Robinson, P L, Shotton, F W and Taylor, F M. 1980. A correlation of the Triassic rocks in the British Isles. Special Report of the Geological Society of London, No.13. | |||
| Mitchell, G H, Pocock, R W, and Taylor, J H. 1962. Geology of the country around Droitwich, Abberley and Kidderminster. Memoir of the Geological Survey of Great Britain, Sheet 182 (England and Wales). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E216 E183 E123 E139 E154 E167 | |||