The BGS Lexicon of Named Rock Units — Result Details
Corvanaghan Formation
Computer Code: | CORV | Preferred Map Code: | CORV |
---|---|---|---|
Status Code: | Full | ||
Age range: | Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ) | ||
Lithological Description: | Predominantly quartz feldspar biotite granular gneiss with subordinate mica schist and pelite. Metamorphosed up to sillimanite grade. | ||
Definition of Lower Boundary: | Not seen due to faulting. | ||
Definition of Upper Boundary: | Not seen due to faulting. | ||
Thickness: | Unknown. | ||
Geographical Limits: | Central County Tyrone, Northern Ireland. Corvanaghan, Fir Mountain, Beleevenamore, Evishanoran. | ||
Parent Unit: | Lough Derg Group (MLD) | ||
Previous Name(s): | Corvanaghan Formation
(CORV)
Tyrone Central Inlier (-811) Corvanaghan Formation (CORV) Corvanaghan Formation [Obsolete Code: Use CORV] (DACV) Tyrone Metamorphic Inlier [Obsolete Name And Code: Use CORV] (DATI) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | Corvanaghan Quarry, Corvanaghan Mountain, 12km west north west of Cookstown, County Tyrone. | ||
Reference(s): | |||
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: | |||
N34 |