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Earth's System: Force of the Earth: Volcanoes and Earthquakes
Magma Composition
Description
Magma Composition
Magma is molten rock beneath the Earth's surface. When it erupts from a volcano, it is called lava. The composition of magma determines how a volcano erupts. Different types of magma contain varying amounts of silica, gas content, and temperature, which influence how thick or f...
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Transcript
Deep within the Earth, rock melts under intense heat and pressure, forming magma.
Magma collects in magma chambers beneath the Earth's surface, often at plate boundaries or hotspots.
The flow of magma primarily depends on its viscosity. High-viscosity magma, rich in silica, traps gas, remaining below the surface or erupting explosiv...
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