19/01/2024
On Smeardon Down there is an interesting ridge of rock also known as Smearn Ridge which runs through to Boulters Tor. Again we are not on the granite area here and believe this to be an igneous intrusion of a Dolerite sill or d**e (similar composition to Basalt, which is an extruded form, also known as Gabbro, which notably forms much of the Cuillin Ridge on Skye and also the Whin Sill in Northumberland along which the Roman Wall runs) contained within an envelope of country rock which here looks like a finely bedded and metamorphosed siltstone or sandstone. This same metamorphic rock then outcrops as Set Tor, a little further onto the moor.
All in all a really interesting little area topped of with a great lunch in the Peter Tavy Inn