Interbedded fine sandstones and siltstones thermally metamorphosed by the Central Granite. This is indicated by the cordierite spots in the finer grained horizons. (Cordierite is a mineral which develops as a result of contact metamorphism of Mg-Al rich argillaceous sediments).
Scale: coin is 20 mm in diameter
Grid reference: 936 269
This page is maintained by Roger Suthren
Last Modified: 23 October, 2008