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Transcript
Explosive Pyroclastic A volcano is a mountain formed beneath the ground when the Earth’s crust meets the mantle and magma collects there until it rises to the surface because magma is less dense than the surrounding rock is. Then the magma becomes liquid. Shield, cinder cone, and composite volcanoes Explosive – pyroclastic Now everybody knows Shield, cinder cone, and composite volcanoes Non-explosive lava flows Now everybody knows When the water content in the magma is higher, then the volcano is more likely to erupt explosively. Composite, also known as stratavolcanoes, form as explosive eruptions are followed by flowing lava. Shield, cinder cone, and composite volcanoes Non-explosive lava eruptions form shield volcanoes Shield, cinder cone, and composite volcanoes Cinder cone from pyroclastic are steep but quickly erode Lyrics and music by Bram Barker http://brambarker.com/ © Rice University