Stair Hole
Stair Hole from the west, with the "Lulworth Crumple" visible to the left of the picture - an area where once-flat strata of sedimentary rocks from the ocean bed were tilted as continents collided. The crumpling effect is caused by bands of soft shale between bands of harder limestone.
"Around 25 million years ago the African tectonic plate collided with the European plate. The huge pressures generated heaved and folded rocks to create the mountain chain we know as the Alps. Ripples from that collision spread north through the Earth’s crust and gently folded the rocks here, in what would become south Dorset and Purbeck." jurassiccoast.org/walkthroughtime/highlight-lulworth-cove...
Stair Hole
Stair Hole from the west, with the "Lulworth Crumple" visible to the left of the picture - an area where once-flat strata of sedimentary rocks from the ocean bed were tilted as continents collided. The crumpling effect is caused by bands of soft shale between bands of harder limestone.
"Around 25 million years ago the African tectonic plate collided with the European plate. The huge pressures generated heaved and folded rocks to create the mountain chain we know as the Alps. Ripples from that collision spread north through the Earth’s crust and gently folded the rocks here, in what would become south Dorset and Purbeck." jurassiccoast.org/walkthroughtime/highlight-lulworth-cove...