Earth Science Conservation Review
| Largy Hill, Lack | Tyrone |
| Site Type: | Field |
| Site Status: | local interest |
| Grid Reference: | H271655 |
| Google maps: | 54.53758,-7.58131 |
| Rocks | |
|---|---|
| Rock Age: | Precambrian (Dalradian) |
| Rock Type: | Schist |
| Interest | |
| Minerals: | Almandine, Muscovite |
Summary of site:
At this locality large, well-formed crystals of almandine garnet are found in a silvery schist within the Mullaghcarn Formation. These are ancient Dalradian rocks around 600 million years old but the crystals formed when they were metamorphosed during a continental collision with an island arc around 465 million years ago. Outcrop is poor and most crystals are found in rock fragments unearthed by ploughing.
| Enlander, I., Dempster, M. & Doughty, P., 2026. Largy Hill, Lack, County Tyrone, site summary. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/summary.php?item=560. Accessed on 2026-02-09 |
| Previous Site | Next Site |