Wednesday, 5 September 2018

Upside down: the Moine Thrust at Knockan Crag





I was so pleased to visit the Moine Thrust. More than 400 million years ago, two early continents crashed into each other due to plate tectonics and this pushed older rocks over younger ones. At least that was the first evidence to geologists that something very wrong had happened here. You usually expect the rocks at the top to be the youngest ones. The model at the top shows the rock layers - silvery Moine Schist above the younger Durness Limestone. And the last picture is the actual place on the hill!