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)
Corvanaghan Formation [Obsolete Code: Use CORV] (DACV) Tyrone Metamorphic Inlier [Obsolete Name And Code: Use CORV] (DATI) Corvanaghan Formation (CORV) Tyrone Central Inlier (-811) |
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| 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 | |||