The Lorne plateau lavas are basaltic lava flows extruded in the late Silurian, 424 to 415 million years ago, which are found today in the Oban -

Kerrera Kerrera (; gd, Cearara or ''Cearrara'') is an island in the Scottish Inner Hebrides, close to the town of Oban. In 2016 it had a population of 45, divided into two communities in the north and south of the island. Geology The oldest bedrock ...

area of Scotland. Peperite occurs where they flowed into

Old Red Sandstone The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also exte ...

lakes.

References

Volcanism of Scotland Lava flows Silurian volcanism {{UK-geology-stub