| Computer Code: |
STRA |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Early Devonian Epoch (DL)
— Early Devonian Epoch (DL) |
| Lithological Description: |
Red shales and sandstone, olive shales and fetid, calcareous, bituminous beds. |
| Definition of Lower Boundary: |
Drawn at base of olive shales and calcareous bands of the Ord Beds where they rest conformably on conglomerate and breccia of the Kilmorack Group. |
| Definition of Upper Boundary: |
Drawn at unconformable upward passage from red shales and sandstones of the Strathpeffer Group to the Knock Farril Conglomerate. |
| Thickness: |
Not known. |
| Geographical Limits: |
Highland, Scotland. |
| Parent Unit: |
Old Red Sandstone Supergroup (ORS)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Strathpeffer, Highland, Scotland. |
| Reference(s): |
| Johnstone, G S and Mykura, W. 1989. British regional geology: the Northern Highlands (4th edition) (London: HMSO for the British Geological Survey.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
