Scientists discovered a hidden process where Earth's crust peels away and sinks, reshaping continents over millions of years, revealing Earth's slow evolution.
Some can be nearly as old as the solar system itself, about 4.6 billion years. Continental crust is generally higher in silica, which makes it less dense. This low density makes continents too ...
Continental and oceanic plates all fit together to form the outer crust of the planet. Eight major plates are named on the diagram below. Heat from the core makes magma in the mantle rise towards ...