Changes

[[Image:Magma.gif|thumb|300px|Sketch of a magma reservoir beneath a volcano and a conduit leading up to a lava dome at the surface. Arrow indicates direction of magma movement from a deeper source.]]'''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 [[mineral]]s that crystallized directly from the melt, solid rocks incorporated into the magma from along the conduit or reservoir, called [[xenolith]]s or inclusions, and dissolved gases.

[[Image:Magma.gif|thumb|300px|Sketch of a magma reservoir beneath a volcano and a conduit leading up to a lava dome at the surface. Arrow indicates direction of magma movement from a deeper source.]]'''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 [[mineral]]s that crystallized directly from the melt, solid rocks incorporated into the magma from along the conduit or reservoir, called [[xenolith]]s or inclusions, and dissolved gases.

[[Category:Geology]]

[[Category:Volcanology]]