Computer Code: |
CVF |
Preferred Map Code: |
CVF |
Status Code: |
Full |
Age range: |
Silurian Period (S)
— Early Devonian Epoch (DL) |
Lithological Description: |
Macroporphyritic shoshonite lavas, aphyric and microporphyritic olivine basalt and basaltic andesite lavas, tuffs and volcaniclastic sedimentary rocks. |
Definition of Lower Boundary: |
The base of the lowest lava or tuff overlying the Whitehouse Conglomerate Formation or the Gourdon Sandstone Formation. |
Definition of Upper Boundary: |
The top of the lava or tuff underlying the Catterline Conglomerate Formation. |
Thickness: |
Up to 270 m thick. |
Geographical Limits: |
Stonehaven to Gourdon, and in the north-west limb of the Strathmore Syncline between Stonehaven and Dunkeld. |
Parent Unit: |
Dunnottar-Crawton Group (DRCR)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Coastal section at Crawton Bay. |
Reference(s): |
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.) |
Armstrong, M, and Paterson, I B. 1970. The Lower Old Red Sandstone of the Strathmore Region. Report of the Institute of Geological Sciences No. 70/12 |
Campbell, R, 1913. The geology of south-eastern Kincardineshire. Transactions of the Royal Society of Edinburgh, Vol.48, pp.923-960. |
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S067
S056
|