Computer Code: |
FOC |
Preferred Map Code: |
Foc |
Status Code: |
Full |
Age range: |
Mid Devonian Epoch (DM)
— Mid Devonian Epoch (DM) |
Lithological Description: |
Red-bed sandstones with sporadic silty calcareous mudstones with fossil fish-bearing limestones/concretions. |
Definition of Lower Boundary: |
At top of the Spey Conglomerate Formation, the essentially conglomeratic sequence at the base of the Old Red Sandstone succession in the Fochabers area. |
Definition of Upper Boundary: |
At diachronous base of the Findhorn Sandstone Group in the Fochabers area where it is marked by yellow to reddish brown fossiliferous sandstones, containing fish, of the Alves-Scaat Craig Beds. |
Thickness: |
Approximately 100m |
Geographical Limits: |
Not defined. |
Parent Unit: |
Inverness Sandstone Group (INS)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Partial Type Section |
Cliff and stream section along Dipple Burn to junction with River Spey at Fochabers Bridge. |
Reference(s): |
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
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