Articles tagged "true polar wander"

tsunami by diego marcondes

'True polar wander' and Earth's ice ages

Rice University geophysicists have determined Earth shifted relative to its spin axis within the past 12 million years, which caused Greenland to move far enough toward the north pole to kick off the ice age that began about 3.2 million years ago. The study is based...

December 02, 2018

lunar_true_polar_wander_f

Earth's moon wandered off axis billions of years ago

Planetary scientist Matt Siegler at Southern Methodist University, Dallas, and colleagues discovered that Earth's moon slowly moved from its original axis roughly 3 billion years ago. The move would be as if Earth's axis relocated from Antarctica to...

March 23, 2016