Thursday, November 14, 2013

Can dormant volcanoes become active volcanoes? by Lilly

I learned a lot about dormant and regular volcanoes!  I learned there really is no such thing as a dormant volcano!  A volcano can always erupt as long as it stays in the same place.  When the magma chamber cools down it can easily reheat again!  It can even erupt faster than it would have!  It can do this in three easy stages!

1. When new hot magma rises from below the chamber it melts the molten magma in the chamber.

2. The freshly not molten magma go's through the chamber.

3. The heat makes all the magma move a lot faster.

Geologists think that no volcano can ever not erupt. So a dormant volcano is always an active one that is just not erupting at the time, but can erupt again.  Now I know what your wondering, how does a volcano become dormant?  Well once in awhile a magma chamber cools down.  As you learned before, it can reheat  again in three easy steps. If a volcano does not erupt for 10,000 years than it can be officially dormant.  A volcano may have had a really big eruption that blew all or most of the volcano away.  There can also be plate movement and the volcano will move and the magma source can't move with it!  That is all I learned about volcanoes!  I hope you learned a lot
!

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