Is Earth's inner core solid or liquid? While the inner core is extremely hot, experts have known that it is solid for many ...

A spot in eastern Africa called the Afar Triangle marks the meeting point of three rift zones—lines where Earth’s crust is being rent apart. Researchers haven’t been sure exactly what drives this ...

Mantle plumes are important geologic processes—they interact with plate tectonics, create rich mineral deposits, and even ...

Volcanic eruptions can destroy essential infrastructure, ground air traffic for days, wipe out entire cities, disrupt the ...

New research has uncovered a fascinating link between volcanic eruptions and mysterious structures deep within Earth’s interior, challenging long-standing assumptions about the planet’s lower mantle.

Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused ...

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

Due to the radiative thermal conductivity of the mineral olivine, only oceanic plates over 60 million years old and ...

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

New research reveals that only the oldest and fastest-sinking oceanic plates can transport water deep into Earth’s mantle, ...

They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

In East Africa's Afar Depression, scientists have discovered that fresh lava from deep within the Earth's mantle is driving the continent's split. The ...