The BGS Lexicon of Named Rock Units — Result Details

Dunnet Head Sandstone Formation

Computer Code: DUH Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Frasnian Age (DR) — Famennian Age (DA)
Lithological Description: Unfossiliferous yellow and brown sandstones with grit beds.
Definition of Lower Boundary: Drawn where the yellow and brown sandstones of the Dunnet Head Sandstone rests unconformably on the flagstones of the Caithness Flagstone Group.
Definition of Upper Boundary: The Dunnet Head Sandstone is overlain unconformably by superficial deposits.
Thickness: c.733m
Geographical Limits: Caithness, northern Highlands. (Highland Region).
Parent Unit: Eday Group (EDY)
Previous Name(s): Dunnet Sandstone Group (-4011)
Dunnet Head Sandstone Group (-4626)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Dunnet Head, Caithness, Scotland. 
Reference(s):
Phemister, J. 1948. British Regional Geology: Scotland: the Northern Highlands (2nd edition) (Edinburgh: HSMO for the Geological Survey and Museum.) 
Geikie, A, 1879. On the Old Red Sandstone of Western Europe. Transactions of the Royal Society of Edinburgh, Vol.28, p.374-404. 
Murchison, R I, 1859. Northern Highlands, etc. Quarterly Journal of the Geological Society, Vol.15, p.394,409. 
Crampton, C B and Carruthers, R G, 1914. The geology of Caithness. Memoir of the Geological Survey, Scotland. Sheets 110 and 116 (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S116