The BGS Lexicon of Named Rock Units — Result Details

Roe Valley Group

Computer Code: ROEV Preferred Map Code: ROEV
Status Code: Full
Age range: Courceyan Substage (CF) — Courceyan Substage (CF)
Lithological Description: Consisting of two formations (qv), the basal Spincha Burn Conglomerate Formation and the succeeding Barony Glen Formation.
Definition of Lower Boundary: The Roe Valley Group unconformably succeeds Dalradian rocks of both the Argyll and Southern Highland groups.
Definition of Upper Boundary: In this sheet area the Roe Valley Group is overlain unconformably by a succession of rocks including the Triassic Sherwood Sandstone and Mercia Mudstone groups, the late Cretaceous Hibernian Greensands and Ulster White Limestone formations and the Palaeogene Lower Basalt Formation of the Antrim Lava Group.
Thickness: 425m
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: Not Applicable (-)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
none recorded or not applicable
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: