The rocks of the lithosphere, denser than the underlying mantle, can sink into it, a process called delamination. This long-debated theory finds confirmation through research conducted under the ...

Under the Sierra Nevada in California, scientists have observed a rare phenomenon that sheds light on the dynamics of the ...

Beneath California's Sierra Nevada, evidence suggests the lithosphere is undergoing foundering, where the denser lower lithosphere detaches and sinks into the mantle.