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    Question ID:   13220         Current Version: 1
Question: What is magma?
Category: Science > Earth Sciences
Keywords: molten rock, magma
Type: what
Rating:(0 ratings)    Views: 545    Discussions: 0   In Watch Lists: 1  

 
    Answer:

Magma is molten or partially molten rock beneath the Earth's surface. When magma erupts onto the surface, it is called lava. Magma typically consists of a liquid portion (often referred to as the melt); a solid portion made of minerals that crystallized directly from the melt; solid rocks incorporated into the magma from along the conduit or reservoir, called xenoliths or inclusions; and dissolved gases.

Source: USGS

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