Magma (or lava if erupted to the surface) is composed of liquid, solid (mineral crystals) and gas. Its composition is largely controlled by its source. The image shown above is a pahoehoe basalt flow. - PowerPoint PPT Presentation

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Magma (or lava if erupted to the surface) is composed of liquid, solid (mineral crystals) and gas. Its composition is largely controlled by its source. The image shown above is a pahoehoe basalt flow.

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Magma or lava if erupted to the surface is composed of liquid, solid mineral crystals and gas. Its c – PowerPoint PPT presentation

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