40-Second Video Shows A Billion Years Of Shifting Tectonic Plates – Forbes

Illustration of world map showing the modern plate margins.
getty
Plate tectonics is a scientific theory describing the large-scale motion of seven or eight large plates (depending on how they are defined) and the movements of a larger number of smaller plates of Earth’s rigid outermost shell. The relative movement of the plates typically ranges from zero to 100 mm annually. Since tectonic processes began on Earth between 3.3 and 3.5 billion years ago this speed – as fast as our fingernails grow…

Click here to view the original article.