Note 312 — Chapter XVI · THE VOLCANOES OF THE OLD RED SANDSTONE
Reading edition
An unconformability of this kind occurs between the south end of the Pentland Hills and Tinto in Lanarkshire, and another in Ayrshire.
Reading edition
An unconformability of this kind occurs between the south end of the Pentland Hills and Tinto in Lanarkshire, and another in Ayrshire.