大象传媒

The theory of isostasy is illustrated using the town of Stonehaven in Scotland as an example. During an ice age, the build-up of ice presses down on the land and the sea level drops. When the ice melts there is a rapid and significant rise in sea level and the land rises up. The resulting change in sea level is called isostasy. What was once a wave-cut platform and beach is raised out of the sea forming a raised beach. The town of Stonehaven has been built on such a feature.