Plate Tectonics

An odd phenomenon called lithospheric dripping might occur wherever mountains form.

The ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a "living fossil." A new discovery reveals that it evolved faster when plate tectonics were most active.

Antarctica is covered by a miles-thick ice sheet, but was that always the case? And when was the coldest continent ice-free?

It's the first time Earth's geologic record — information found inside rocks — has been used to create an animation of this kind.

The Davis Strait, west of Greenland, holds a long-lost chunk of an almost-continent that didn't quite form about 58 million years ago.

New research hints that plate tectonics began earlier than 4 billion years ago — not long after Earth had formed.

During 37 years of operations, the now-closed Argyle mine produced more than 865 million carats (191 tons) of rough diamonds and 90% of the world's pink diamonds.

A new study of seismic data from Antarctica finds that the mantle may be stranger and more variable than previously believed, with pieces of ancient crust that have been dragged down by tectonic forces.

A large extinction in the midst of the expansion of life during the Cambrian period was caused by the tectonics of a supercontinent, new research argues.