Magma - John Seach

Magma is a molten rock generated beneath the earth's surface by melting of the mantle.
Magma erupts onto the earth's (or other solar system body) surface to produce lava.
Intrusive rocks are produced when magma cools in the earth's interior.

There are 2 main types of Magma
1) Basaltic (Basalt and Andesite)
2) Silicic ( Dactite and Rhyolite)
 

Magma
www.volcanolive.com
Copyright John Seach