The BGS Lexicon of Named Rock Units — Result Details

Ballyness Formation

Computer Code: BYC Preferred Map Code: BYC
Status Code: Full
Age range: Tournaisian Stage (CT) — Tournaisian Stage (CT)
Lithological Description: Bright red sandstones, quartz-pebble conglomerates and pebbly sandstones.
Definition of Lower Boundary: Unconformable on a variety of rock units.
Definition of Upper Boundary: Rapid transition, conformable to succeeding peritidal carbonates and shales (Clogher Valley Formation)
Thickness: c.300m
Geographical Limits: none recorded or not applicable
Parent Unit: Tyrone Group (TYRO)
Previous Name(s): Basal Clastics (-740)
Calciferous Sandstone (-741)
Lower Carboniferous Sandstone (-1407)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Section in Cole Bridge Stream 4.5km N. of Fivemiletown, Co. Tyrone 
Reference Section  Tributory stream of Ballygawley Water, 2km ENE of Ballygawley, Co. Tyrone 
Reference(s):
Geological Survey of Northern Ireland 1982. 1:50 000 Solid Geology of Sheet 45 (Enniskillen). Belfast 
Griffith, A E, 1970. A review of Upper Old Red Sandstone and Tournaisian rocks in Northern Ireland. C.R. 6th Cong. int Strat. Geol. Carb., Sheffield 1967, 2, 837-41 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
N33