Polar Wander

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:

    “Professor Fate: My apologies. There’s a polar bear in our car.”
    —Arthur Ross. Professor Fate (Jack Lemmon)

    “I know of the sleepy country, where swans fly round
    Coupled with golden chains, and sing as they fly.
    A king and a queen are wandering there, and the sound
    Has made them so happy and hopeless, so deaf and so blind
    With wisdom, they wander till all the years have gone by....”
    —William Butler Yeats (1865–1939)