you can literally stand on an exposure of the Moho-that-was
Ha, who need the mohole when you have Cornwall!
Edited to add: actually this is sort of how I feel when back in Durham and we head up Weardale and over into Teesdale and encounter bits of the Whin Sill and the Sugar Limestone up near High Force and Cauldron Snout (for non-geologists/northerners, the Whin Sill is a volcanic intrusion underlying most of the North East - those shots of Hadrian's Wall running along a precipice are its northern edge, and sugar limestone is what you got when it cooked the local limestone in Teesdale - it's about as robust as the name sounds). My living room clock is a slice of Weardale limestone with galena 'numbers' I picked up in a souvenir shop on one of those trips. Geology as invocation of home.
no subject
Ha, who need the mohole when you have Cornwall!
Edited to add: actually this is sort of how I feel when back in Durham and we head up Weardale and over into Teesdale and encounter bits of the Whin Sill and the Sugar Limestone up near High Force and Cauldron Snout (for non-geologists/northerners, the Whin Sill is a volcanic intrusion underlying most of the North East - those shots of Hadrian's Wall running along a precipice are its northern edge, and sugar limestone is what you got when it cooked the local limestone in Teesdale - it's about as robust as the name sounds). My living room clock is a slice of Weardale limestone with galena 'numbers' I picked up in a souvenir shop on one of those trips. Geology as invocation of home.