| Computer Code: |
TFPS |
Preferred Map Code: |
TF |
| Status Code: |
Full |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
Micaceous and feldspathic psammites, in graded beds with thin semipelite bed tops. Minor semipelite beds. |
| Definition of Lower Boundary: |
Base of dominantly psammitic succession above an underlying semipelite. Change to dominantly psammites. |
| Definition of Upper Boundary: |
Not seen. |
| Thickness: |
1km to 1.5km |
| Geographical Limits: |
Central Highlands of Scotland between Loch Ericht, Ardverikie Forest and the Upper Spey Valley. |
| Parent Unit: |
Corrieyairack Subgroup (GRCO)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Exposures around The Fara, notably on its southeastern flank. |
| Reference(s): |
| Robertson, S and Mendum, J R, in press. Lithostratigraphy of the Grampian and Appin Groups in the Dalwhinnie district, sheet 63E, Scotland. British Geological Survey Technical Report. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S063
S054
|
