| Computer Code: |
BAGR |
Preferred Map Code: |
notEntered |
| Status Code: |
Full, pending ratification |
| Age range: |
Frasnian Age (DR)
— Famennian Age (DA) |
| Lithological Description: |
Yellow and red, medium-grained, cross bedded sandstone of fluvial origin with scattered pebbles. |
| Definition of Lower Boundary: |
Drawn at base of yellow and red sandstones of the Balnagown Group where it rests unconformably on sandstone of the Strath Rory Group. |
| Definition of Upper Boundary: |
Drawn at unconformable upward change from yellow and red sandstone of the Balnagown Group to probable Jurassic Strata. |
| Thickness: |
Not known. |
| Geographical Limits: |
Highlands, Scotland. |
| Parent Unit: |
Not Entered (?)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Balnagown River, near Balnagown Castle, 6km south of Tain, Easter Ross, Highlands, Scotland. |
| Reference(s): |
| Armstrong, M. 1964. The geology of the region between the Alness River and the Dornoch Firth. Unpublishd Ph. D. Thesis, Newcastle upon Tyne University. |
| House, M R, Richardson, J B, Chaloner, W G, Allen, J R L, Holland, C H and Westoll, T S. 1977. A Correlation of Devonian rocks of the British Isles. Geological Society of London, Special Report No.8, Scottish Academic Press, Edinburgh. |
| Mykura, W, 1983. Old Red Sandstone. "In" Craig, G Y. Geology of Scotland, 2nd. edition, Edinburgh. |
| Johnston, G S and Mykura, W. 1989. British regional geology: the Northern Highlands (4th edition) (London: HMSO for the British Geological Survey.) |
| Armstrong, M. 1977. The Old Red Sandstone of Easter Ross and the Black Isle. In Gill, G (editor). The Moray Firth area - geological studies. Inverness Field Club. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
