Polar wander is the movement of the North and South Poles of the Earth with respect to the continents. This motion can be divided into two components: apparent polar wander, due to continental drift (the continents' movement over the mantle), and true polar wander, in which the mantle and the crust rotate together into new orientations.
Famous quotes containing the words polar and/or wander:
“In time your relatives will come to accept the idea that a career is as important to you as your family. Of course, in time the polar ice cap will melt.”
—Barbara Dale (b. 1940)
“Those who wander in the world avowedly and purposely in pursuit of happiness, who view every scene of present joy with an eye to what may succeed, certainly are more liable to disappointment, misfortune and unhappiness, than those who give up their fate to chance and take the goods and evils of fortune as they come, without making happiness their study, or misery their foresight.”
—Frances Burney (1752–1840)