The Geology of Bute
Bute is rich in geology as five of the geological periods are represented
on the island. This is because the Highland Boundary Fault passes through
Bute between Rothesay town and Scalpsie Bay. To the north of the fault are
the metamorphic Dalradian schists and Dunoon phyllites of Argyll and to
the south of the fault there is sedimentary Old Red Sandstone of the Devonian
This has been overlaid south of Kilchattan Bay by Carboniferous lavas and
Tertiary sills. The landscape as we see it today is largely the result of
ice movements during the ice ages. The raised beaches which surround the
island in many places are the result of the land rising after the ice melted.
Explanations of the geology of Bute and geological specimens can be studied
in the Bute Museum, Rothesay.
Mollie settled on Bute along with her husband Ian in 1953, he was a native
of Renfrew and was always attached to the island from the days when he
was brought down as a child to take the tram to Ettrick Bay and play on
the beach. Mollie originates from Millom, Cumberland.