Wednesday, August 3, 2011

volcanism


volcanism

Volcanism is all the events associated with the magma reaches the surface of the earth comes out through cracks in the crust or through a central tube (canal crater / diatrema).

Magma that comes out to the earth's surface is called lava.

Volcanism may be an eruption, melt, or a mixture of eruption and melt.

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