Sgurr of Eigg Pitchstone Formation
| Sgurr of Eigg Pitchstone Formation | |
|---|---|
| Stratigraphic range: 58.72 ± 0.07 Ma | |
Columnar pitchstone on An Sgurr | |
| Type | Geological formation |
| Overlies | Eigg Lava Formation |
| Thickness | up to 120 metres (390 ft) |
| Lithology | |
| Primary | Pitchstone |
| Other | Peperite |
| Location | |
| Region | Inner Hebrides |
| Country | Scotland |
| Type section | |
| Named for | Sgurr of Eigg |
The Sgurr of Eigg Pitchstone Formation is a volcanic formation of late Paleocene age exposed on Eigg, part of the Inner Hebrides in Scotland. It is thought to represent a remnant of a much larger deposit that originated from the Skye igneous centre to the northeast, formed by an eruption, possibly with a VEI of 6 or greater.