| Computer Code: |
FAS |
Preferred Map Code: |
FaS |
| Status Code: |
Full |
| Age range: |
Late Devonian Epoch (DU)
— Late Devonian Epoch (DU) |
| Lithological Description: |
White or cream, fine-grained, cross-bedded and finely laminated sandstones with beds of cross-bedded sandstone containing quartz pebbles. |
| Definition of Lower Boundary: |
A transitional boundary drawn at the base of the white or cream sandstones of the Fairlie Sandstone Formation where it rests conformably on the red-brown sandstones of the Kelly Burn Sandstone Formation. |
| Definition of Upper Boundary: |
Drawn at the unconformity from the white or cream sandstones of the Fairlie Sandstone Formation to the lava of the Clyde Plateau Volcanic Formation, or locally the Kinnesswood Formation. |
| Thickness: |
Approximately 300 m thick. |
| Geographical Limits: |
East of the Largs Fault Zone, Strathclyde, Scotland, sheets 29, 21, 22W. |
| Parent Unit: |
Stratheden Group (SAG)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Area around Fairlie Glen, Strathclyde, Scotland. |
| Reference(s): |
| Paterson, I B and Hall, I H S. 1986. Lithostratigraphy of the late Devonian and early Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Report, 18/3. |
| Paterson, I B, Hall, I H S and Stephenson, D. 1990. Geology of the Greenock district: Memoir for 1:50000 geological sheet 30W and part of sheet 29E (Scotland). |
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) |
| Browne, M A E, Smith, R A, and Aitken, A M. 2002. Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. British Geological Survey Research Report RR/01/04. 67 pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S030
S029
S022
S021
|
