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Volcanoes

Stack #71254

QuestionAnswer
Shield Volcano lava flows gradually forming a gently sloping mountain
Compostie high gas content, erupts violently, steeply sloping
Cinder Cone steep, cone shaped, materials pile up around the vent, if the lava is thinck it can produce ash, cinders, or bombs
Lava Plateaus Thin runny lava travels far before cooling down and solidifying again and again. Floods build up over a long period of time to form these plateaus
Calderas enormous eruptions that may empty the magma chamber which causes the mountain to be a hollow shell and collapse
Volcanic Neck When magma hardens in the volcano's pipe, the softer rock is eroded away, leaving the harder rock exposed
Dike magma that forces itself across rock layers
Sill magma that squeezes between layers of rock
Batholith a mass of rock that is formed when the magma hardens beneath the crust
Dome Mountain when rising magma is blocked by horizontal layers of rock, the magma forces the layers to bend into a dome shape
Io erupts sulfur in jet like fountains or umbrella shapes
Triton erupts liquid nitrogen
Vent The magma leaves an opening called the vent
Magma Chamber inside a volcano, the magma is stored in a pocket
Lava Flow The area covered by lava as it pours out of a vent
Crater a bowl-shaped area around the volcano's central vent
Silica a material formed from oxygen and silicon
Pahoehoe a hot, faster moving lava that comes froma quiet eruption
Aa a cooler, slower moving lava that comes from a quiet eruption
Pyroclastic Flow when an explosive eruption hurls out ash, cincers and bombs. the explosion breaks down the lava and it cools.
Acitve Volcano A volcano that is active, and is going to erupt again.
Dormant Volcano a volcano that isn't active, but could become active in the near future.
Created by: HonorsScience
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