| Mull Lava Group | |
| Type: | Group |
| Age: | Palaeocene epoch, Palaeogene |
| Prilithology: | basalt lavas |
| Namedfor: | Isle of Mull |
| Country: | Scotland |
| Subunits: | Mull Central Lava Formation, Mull Plateau Lava Formation, Staff Lava Formation |
| Overlies: | Moine Supergroup and Mesozoic sedimentary rocks |
| Thickness: | 1800 m (estimated) |
| Extent: | Isle of Mull, Ardnamurchan, Morvern |
| Area: | 840sq km |
The Mull Lava Group is a Palaeogene lithostratigraphic group (a sequence of rock strata) in the west Highlands of Scotland. The name is derived from the Isle of Mull where they are most extensively seen, forming the bedrock across much of the island. They extend into the mainland peninsulas of Ardnamurchan and Morvern and also out to sea.
The Group consists of around 1800 m thickness of lavas erupted from the Mull Central Volcanic Complex and display a range of chemistries. The Group includes (in descending order, i.e. oldest last):
These three formations were formerly known as the Staffa, Main and Pale ‘suites’ of the Plateau Group[1]