The BGS Lexicon of Named Rock Units — Result Details

Spincha Burn Conglomerate Formation

Computer Code: SPBU Preferred Map Code: SPBU
Status Code: Full
Age range: Courceyan Substage (CF) — Courceyan Substage (CF)
Lithological Description: Alternating beds up to 1m thick of conglomerate, very coarse-grained matrix with self-supporting clasts of very well rounded pale greenish grey quartzite and white vein quartz and sandstone, coarse- to very coarse-grained.
Definition of Lower Boundary: Unconformably succeeds Dalradian rocks of both the Argyll and Southern Highlands groups.
Definition of Upper Boundary: Concealed, but succeeded by non-conglomeratic rocks of the Barony Glen Formation.
Thickness: 25m
Geographical Limits: East side of the Dalradian Supergroup outcrop in the Sperrin Mountains and fringing the south side of Lough Foyle. Located west of the western edge of the basalt lavas of the Antrim Plateau.
Parent Unit: Roe Valley Group (ROEV)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  South end of the Spincha Burn, 6.3km northnorthwest of Moneyneany, Co. Londonderry. 
Mitchell, W I. 1997. Geological description of 1:10,000 Sheet 77 [NW Quadrant] Part of 1:50 000 Geological Sheet 18 [Dungiven]. Geological Survey of Northern Ireland Technical Report GSNI/97/2. 
Mitchell, W I. [ed.]. 2004. The Geology of Northern Ireland - Our Natural Foundation. [Second Edition]. [Belfast: Geological Survey of Northern Ireland.] 
1:50K maps on which the lithostratigraphical unit is found, and map code used: