The BGS Lexicon of Named Rock Units — Result Details

Rhynie Group

Computer Code: RHN Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Conglomerate, shale, sandstone and siltstone, with intercalated andesitic and rhyolitic lava and ash, and thin chert bands. Comprises entire Old Red Sandstone of Bogie outlier, and possibly also the Cabrach outlier.
Definition of Lower Boundary: Unconformity on Dalradian metasediments and Caledonian plutonic rocks.
Definition of Upper Boundary: Removed by erosion.
Thickness: 970 metres in type localities for each formation; maximum thickness probably 2100 metres in Kildrummy (NJ 46 18) area.
Geographical Limits: Not defined.
Parent Unit: Old Red Sandstone Supergroup (ORS)
Previous Name(s): Old Red Sandstone Of Rhynie And Cabrach Outliers (-3638)
Alternative Name(s): Corvie Group
Stratotypes:
Type Area  Rhynie area, Sheet 76W, Scotland. See individual formations for more detailed localities: Dryden, Quarry Hill, Tillybrachty, Carlinden and Corbie's Tongue Formations. 
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S076 S086