The BGS Lexicon of Named Rock Units — Result Details
Spey Conglomerate Formation
| Computer Code: | SPY | Preferred Map Code: | Spy |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Mid Devonian Epoch (DM) — Mid Devonian Epoch (DM) | ||
| Lithological Description: | Coarse red-bed conglomerate sequence with sporadic thin pebbly sandstone beds. | ||
| Definition of Lower Boundary: | Conglomerate at base of conglomeratic sequence generally unconformably resting upon metamorphic basement. (Local Aulrothie Sandstone Member at base near Whiteash Hill). | ||
| Definition of Upper Boundary: | At diachronous change to the essentially sandstone sequence (Fochabers Sandstone Formation) typically developed in the Fochabers area. | ||
| Thickness: | c.200m | ||
| Geographical Limits: | Not defined. | ||
| Parent Unit: | Inverness Sandstone Group (INS) | ||
| Previous Name(s): | Orcadian Old Red Conglomerate [Obsolete Name and Code: Use SPY]
(-4342)
Middle Old Red Sandstone Conglomerate [Obsolete Name and Code: Use SPY] (-3044) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | River cliffs of the River Spey, upstream of Fochabers at Craigs of Cuildell. | ||
| Reference(s): | |||
| Hinxman, L W and Grant Wilson, J S, 1902. The geology of Lower Strathspey. Memoir of the Geological Survey, Sheet 85 (Scotland), p.58. | |||
| Peacock, J D, Berridge, N G, Harris, A L, May, F. 1968. The geology of the Elgin District. Memoir of the Geological Survey of Scotland. Sheets 86 and 96 (Scotland). (Edinburgh: HMSO). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S085 S095 S096 | |||