| Computer Code: |
NSX |
Preferred Map Code: |
NSX |
| Status Code: |
Full |
| Age range: |
Late Devonian Epoch (DU)
— Late Devonian Epoch (DU) |
| Lithological Description: |
Basaltic lava. |
| Definition of Lower Boundary: |
Not seen, underlain by sandstone of the Stratheden Group (undivided). |
| Definition of Upper Boundary: |
Not seen, overlain by sandstone of the Stratheden Group. |
| Thickness: |
About.30 m thick. |
| Geographical Limits: |
Arran. |
| Parent Unit: |
Stratheden Group (SAG)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Arran Special Sheet. |
| 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. |
| 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. |
| Friend, P F, Harland, W B and Hudson, J D, 1963. The Old Red Sandstone and the Highland Boundary in Arran, Scotland. Transactions of the Edinburgh Geological Society, Vol.19, 363-425. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S338
|
