The BGS Lexicon of Named Rock Units — Result Details

Strath Rory Group [See Also STRR]

Computer Code: SRG Preferred Map Code: notEntered
Status Code: Full, pending ratification
Age range: Eifelian Age (DI) — Givetian Age (DV)
Lithological Description: Fluvial sandstones with thick conglomerates and subordinate calcareous fish-bearing shales. (Lenticular basal conglomerates).(Correlative of Strath Rory Group = Millbuie Sandstone Group).
Definition of Lower Boundary: Drawn at base of conglomerate of the Strath Rory Group where it rests unconformably on siltstone and mudstone of the Struie Group.
Definition of Upper Boundary: Drawn at unconformable upward passage from sandstones of the Strath Rory Group to yellow and red sandstone of the Balnagown Group.
Thickness: Approx. 1350m seen.
Geographical Limits: Highlands, Scotland.
Parent Unit: Old Red Sandstone Supergroup (ORS)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Strath Rory Formation
Stratotypes:
Type Area  Strath Rory, Easter Ross, Highlands, Scotland. 
Type Area  Cromarty, Highlands, Scotland. 
Reference(s):
Armstrong, M, 1977. The Old Red Sandstone of Easter Ross and the Black Isle. "In" Gill, G. (Editor). The Moray Firth area - geological studies. Inverness Field Club. 
Mykura, W, 1983. Old Red Sandstone. "In" Craig, G Y. Geology of Scotland, 2nd. edition, Edinburgh. 
House, M R, Richardson, J B, Chaloner, W G, Allen, J R L, Holland, C H and Westoll, T S. 1977. A Correlation of Devonian rocks of the British Isles. Geological Society of London, Special Report No.8, Scottish Academic Press, Edinburgh. 
Johnstone, G S, 1989. The Northern Highlands of Scotland. British Regional Geology. p.122. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable