Today on Far Future Horizons we will focus our attention on perhaps the least understood and the most destructive natural phenomena on Earth – Supervolcanoes.
|Map of all Known Supervolcanoes|
Normal volcanoes are formed by a column of magma - molten rock - rising from deep within the Earth, erupting on the surface, and hardening in layers down the sides. This forms the familiar cone shaped mountain we associate with volcanoes.
Supervolcanoes, however, begin life when magma rises from the mantle to create a boiling reservoir in the Earth's crust. This chamber increases to an enormous size, building up colossal pressure until it finally erupts.