Volcanism
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Volcanism
Volcanism (pronunciation: /vɒlˈkeɪnɪzəm/) is a geological phenomenon that involves the movement of molten rock (magma) from the Earth's mantle to its surface, where it cools and solidifies to form volcanoes.
Etymology
The term "volcanism" is derived from "Vulcan," the name of the ancient Roman god of fire and metalworking, which is fitting given the fiery nature of volcanic eruptions.
Related Terms
- Magma: Molten rock beneath the Earth's surface.
- Lava: Molten rock that has reached the Earth's surface.
- Tectonic Plates: Large pieces of the Earth's lithosphere that move and interact, often causing volcanic activity.
- Hotspot (geology): A location in the Earth's mantle where heat rises as a thermal plume from deep in the Earth.
- Volcanic Eruption: The release of magma, gases, and other materials from a volcano.
- Volcanic Arc: A chain of volcanoes formed above a subducting plate.
- Ring of Fire: A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.
See Also
External links
- Medical encyclopedia article on Volcanism
- Wikipedia's article - Volcanism
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