(CNN) — A mysterious type of magma found within extinct volcanoes scattered around the world could contain an abundant supply of rare earth elements, crucial ingredients for electric vehicles, wind ...

Scientists say a mysterious type of iron-rich magma entombed within long dormant volcanoes is likely packed with the in-demand elementsAccording to a new study, extinct volcanoes could be a “rich” ...

Learn how scientists discovered that Methana, a volcano in Greece believed to be dormant, was actually collecting magma for millennia. There are more extinct volcanoes across the world than active ...

Consider a can of soda. When the can is closed (pressurized), the soda contains dissolved carbon dioxide (CO2). When you open the can, the pressure drops, bubbles form and rise. Molten rock (magma) ...

When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth's surface. The magma escapes through weaknesses in the rock and rises up through a ...

Scientists examine a large dike, formed from a sheet of magma that came to Earth’s surface millions of years ago during the Columbia River Basalt eruptions. These dikes fed magma to massive eruptions.

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...