Crustal shear zones at outcrop - a visit to the northern Moine

Part of The Shear Zone Channel. Join Rob as he visits a wonderful natural section across a crustal scale shear zone in northern Scotland. See how the apparent simplicity of the structure hides a secret - folding, that is sheared around - locally creating tube-like structures - sheath folds. #NC500 #geology #tectonic #scotland #geopark