Isostatic depression
Isostatic depression is the sinking of large parts of the Earth's crust into the asthenosphere. The sinking is caused by a heavy weight placed on the Earth's surface. Often this is caused by the heavy weight of glacial ice due to continental glaciation. This is a process in which permanent ice places pressure on the Earth's crust, thereby depressing it with its weight. After continental glaciation has receded, it is common for isostatic rebound to occur.
Greenland is isostatically depressed by the Greenland ice sheet such that parts of the bedrock surface in the interior are below sea level.
See also
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.