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Slieve Gullion Ring - Mullaghbawn SouthArmagh
Gabbro scarp, south Cashel district, to the south-west of Mullaghbawn Mountain, Co. Armagh; Newry Granodiorite contact can be found at the badly overgrown break in the cliff section.
Summary Full report
Site Type: Scarp face
Site Status: PASSI
District: Newry & Mourne District Council
Grid Reference: H98151760
Rocks
Rock Age: Tertiary, Devonian (Devonian Undifferentiated, Palaeogene)
Rock Name: Newry Granodiorite, Slieve Gullion Complex
Rock Type: Dolerite, Granodiorite
Interest
Other interest: plug, ring-fault, Intrusion

Summary of site:

The age of this small, vertical, cylindrical plug of dolerite enclosed in Newry Granodiorite is disputed. It is seamed with granitic veins that have been attributed by some experts to the Newry granodiorite, which would make it Devonian in age, around 400 million years old. A reinterpretation gives an alternative explanation and a Tertiary age of around 58 million years.

This site is becoming overgrown and should be cleared.


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