The BGS Lexicon of Named Rock Units — Result Details

North Sannox Lava Formation

Computer Code: NSX Preferred Map Code: NSX
Status Code: Pending Upgrade
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):
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. 
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. 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:
S338