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
Stratotypes:
Reference Section  Stream section between townlands of Corkill and Lurganaglore, SW of B 83 road. 
Type Area  Stream sections in Corkill, Corkill Demesne and Lislea townlands, 6km ESE of Fintona, Co. Tyrone. 
Reference(s):
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. 
Geological Survey of Northern Ireland 1979. Pomeroy, sheet 34, solid, 1:50 000. [Southampton, Ordnance Survey for Institute of Geological Sciences.] 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
N33