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Volcano unit

Chapter 6 - Volcanoes

QuestionAnswer
a weak spot in the crust where magma has come to the surface volcano
a deposit of hardened magma in a volcano's pipe volcanic neck
a material found in magma that is formed from the elements oxygen and silicon silica
the large hole at the top of a volcano formed when the roof of a volcano's magma chamber collapses caldera
the molten mixture of rock-forming substances, gases, water from the mantle magma
liquid magma that reaches the surface lava
a major belt of volcanoes that rims the Pacific Ocean Ring of Fire
a string of volcanoes along a deep-ocean trench Island Arc
an area where magma from deep within the mantle melts through the crust above it Hot Spot
the pocket beneath a volcano where magma collects magma chamber
a long tube through which magma moves from the magma chamber to Earth's surface pipe
the opening through which molten rock and gas leave a volcano vent
a bowl shaped area that forms around a volcano's central vent. crater
the explosion of ash, cinders, bombs and gases during an explosive volcanic eruption pyroclastic flow
describes a volcano that is not currently active, but that may become active in the future dormant
describes a volcano that is no longer active and is unlikely to erupt again extinct
a wide, gentle sloping mountain made of layers of lava and formed by quiet eruptions shield volcano
a tall cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials composite volcano
a steep, cone-shaped hill or small mountain made of volcanic ash, cinders, and bombs piled up around a volcano's opening cinder cone volcano
the area covered by lava as it pours out of a volcano's vent lava flow
Created by: swimswam
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