The BGS Lexicon of Named Rock Units — Result Details

Raveagh Sandstone Formation

Computer Code: RSF Preferred Map Code: RSF
Status Code: Full
Age range: Mid Devonian Epoch (DM) — Late Devonian Epoch (DU)
Lithological Description: Interbedded sandstones, siltstones and mudstones with thin conglomerates.
Definition of Lower Boundary: Supposedly diachronous with and transitional from conglomerates and sandstones of underlying/contemporaneous Gortfinbar Conglomerate Formation.
Definition of Upper Boundary: Not exposed; probably faulted; also probably an unconformity as rocks are unconformably overlain by basal Carboniferous (inter alia) Ballyness Formation
Thickness: 120-400m
Geographical Limits: none recorded or not applicable
Parent Unit: Fintona Group (FIN)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Area  Stream sections in Corkill, Corkill Demesne and Lislea townlands, 6km ESE of Fintona, Co. Tyrone. 
Reference Section  Stream section between townlands of Corkill and Lurganaglore, SW of B 83 road. 
Geological Survey of Northern Ireland 1979. Pomeroy, sheet 34, solid, 1:50 000. [Southampton, Ordnance Survey for Institute of Geological Sciences.] 
Mitchell, W I and Owens, B, 1990. The geology of the western part of the Fintona Block, Northern Ireland: Evolution of Carboniferous basins. Geological Magazine, Vol.127 (5), 407-426. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: