6.2 Making Magma: How to Melt Rocks – Introduction to Planetary Geology

Magmatism Definition, Formation & Importance

Ever wondered how an eruption occurs? Beneath our feet, magma – hot, molten rock – is produced in the depths of the earth. 🌋 This magma gradually rises through the Earth’s crust, building pressure. As pressure mounts inside the magma chamber, the magma begins to move through channels in the rock. As the magma rises, it can create small earthquakes as it moves through the volcano. When the magma is close to the surface, it can move the ground and release gases. These changes will be detected. Th