Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

The only exception has been where the mantle is exposed by faulting, where a crack forms in the Earth's crust. I was part of an international team which retrieved a record-breaking 1,268m-long ...

Deep beneath California's Sierra Nevada mountains, geologists have found evidence of Earth's rigid outer layer sinking into ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...