In 1669, in what has been considered the volcano’s worst known eruption, lava buried a swath of Catania, about 15 miles away ...

MILAN — Mount Etna, the volcano that towers over eastern Sicily, has again captivated the world with a spectacular show, spewing smoke and high into the sky. But the defining event of Monday’s ...

At the more explosive end of the scale are Plinian eruptions. These include the famous eruption of Mount Vesuvius in 79AD, ...

A small international team of volcanologists has built a more detailed picture of the Campi Flegrei caldera's internal ...

A huge plume of ash, gas and rock spewed forth on Monday from Italy's Mount Etna as authorities warned people to steer clear ...

Mountain interiors with their consistent temperature and humidity also provide suitable environmental conditions for preserving the conventional high explosives (used to compress the fissile material) ...

Granite and other rocks made from recycled magma Igneous rocks, which form from magma (which is called lava when it erupts on the surface), aren’t anything special in our solar system.

The igneous rock intruded into the Cheyenne Belt ... Webber said that the singular “X” is actually a cross-section of a “thin sheet” of intrusive magma called a dike. “Dikes are typically thin, ...

Large igneous provinces may release ... But over time, the magma warms the crust enough that the surrounding rock flows more easily, making it harder to build up enough pressure for a surface ...

The rock sample was taken from the Bushveld Igneous Complex (BIC), a rocky intrusion in northeastern South Africa that formed when magma slowly cooled below the Earth’s surface. The BIC covers an area ...

a mineral found in igneous rocks formed by the cooling of magma, sank in this global magma ocean and formed the Moon’s mantle, leaving the lighter anorthosite on the surface. The uniform ...