The BGS Lexicon of Named Rock Units — Result Details
Clyde Sandstone Formation
| Computer Code: | CYD | Preferred Map Code: | CYD |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Chadian Substage (CI) — Chadian Substage (CI) | ||
| Lithological Description: | Predominantly sandstone, commonly pebbly with beds of red-brown or grey mudstone. Pedogenic carbonate as nodules and beds especially in lower part, also present as rip-up clasts. | ||
| Definition of Lower Boundary: | Conformable base taken in a transition from the underlying mudstone/cementstone association of the Ballagan Formation to a sandstone dominated succession. | ||
| Definition of Upper Boundary: | The top is marked by the overlying Clyde Plateau Volcanic Formation. | ||
| Thickness: | 0 to 300m+ | ||
| Geographical Limits: | Scottish Midland Valley. | ||
| Parent Unit: | Inverclyde Group (INV) | ||
| Previous Name(s): | Downies Loup Sandstones (Stirling) [Obsolete Name and Code: Use CYD]
(-180)
Balcomie Beds (Fife) [Obsolete Name and Code: Use CYD] (-2736) Downie's Loup Sandstone Formation [Obsolete Name: Use CYD] (DWS) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | British Geological Survey Knockairshill Borehole. BGS Reg. No. NS37SW/10 from 50.68m to lower boundary at 222.90m depth. | ||
| Partial Type Section | British Geological Survey Barnhill Borehole. BGS Reg. No. NS47NW/2 from 104.81m (upper boundary) to 161.48m depth. | ||
| Reference(s): | |||
| Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. | |||
| Paterson, I B and Hall, I H S. 1986. Lithostratigraphy of the late Devonian and early Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Report, 18/3. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S029 S030 S003 S015 S023 S031 S030 S030 S038 S039 S041 | |||