The second type of eruption caused by tectonic plates is when the plates move away from each other allowing magma to rise and fill the the gap, which can cause a gentle explosion of thin lava of temperatures between 800 to 1,200C
When an explosion occurs in magma chambers, the volcano erupts. The buildup of pressure on the chamber lid breaks the lid forcing the magma out through the cracks to the atmosphere in full force.
<u>EXPLANATION</u>:
Deep inside the Earth's core, the temperature is extremely high.
The layers of molten rocks on the core melt due to extremely high melting temperature and transform into magma.
Magma contains different gases such as Sulphur dioxide, carbon dioxide, water vapor, etc.
Magma along with the gases is sealed tightly in the magma chambers.
As the magma begins to melt more rocks, the gases also expand increasingly, building huge pressure on the chamber lid.
The chamber lid can no longer hold any more pressure and as a result, an eruption occurs.
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