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.) 
Murchison, R I, 1859. Northern Highlands, etc. Quarterly Journal of the Geological Society, Vol.15, p.394,409. 
Geikie, A, 1879. On the Old Red Sandstone of Western Europe. Transactions of the Royal Society of Edinburgh, Vol.28, p.374-404. 
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