The subduction zones where oceanic plates sink beneath the continents produce volcanic arcs such as those that make up the “rim of fire” around the Pacific Ocean. The volcanoes are fed by molten rock ...

Satellites detected a mysterious gravitational change beneath Earth's surface, suggesting rapid movement of interior masses.

An international research collaboration has harnessed supercomputing power to better understand how massive slabs of ancient ocean floors are shaped as they sink hundreds of kilometers below Earth's ...

(a) Tectonic setting background in the Tonga-Lau-Fiji region. (b) Schematic diagram of the upper mantle structure beneath the Tonga-Lau-Fiji region. A landmark study published in Geoscience—a leading ...

1. Introduction -- 2. General physical and chemical models of the Earth's lower mantle -- 3. Lower-mantle mineral associations -- 4. Ultramafic lower-mantle mineral associations -- 5. Mafic ...