Stacks form when there is an area of weakness in the cliffs that can be attacked by the sea, weakened further, and eroded away. The most typical way in which this happens is when a weakness in an exposed headland becomes a cave, the cave is enlarged from both ends to form an arch, and finally the top of the arch collapses leaving the seaward pillar (the upright bit nearest the sea) as a stack. And people go see the stacks as they are marvelous.
No comments:
Post a Comment