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  Cromarty, Highlands, Scotland. 
Type Area  Strath Rory, Easter Ross, Highlands, Scotland. 
Reference(s):
Mykura, W, 1983. Old Red Sandstone. "In" Craig, G Y. Geology of Scotland, 2nd. edition, Edinburgh. 
Johnstone, G S, 1989. The Northern Highlands of Scotland. British Regional Geology. p.122. 
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable