Volcano Vocab section one
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | Liquid rock produced under the earth's surface;igneous rocks are made of magma.
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| show | Any activity that includes the movement of magma toward or onto Earth's surface.
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| show | Magma that flows onto Earth's surface;the rock that forms when lava cools and solidifies.
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| Hot Spot | show 🗑
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| show | Amajor area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.
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| Subduction Zone | show 🗑
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| show | A curved chain of volcanic islands located at a tectonic plate margin, typically with a deep ocean trench on the convex side.
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| show | A long, narrow opening or line of breakage made by cracking or splitting, especially in rock or earth.
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| show | A localized column of hot magma rising by convection in the mantle, believed to cause volcanic activity in hot spots, such as the Hawaiian Islands, away from plate margins.
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| show | A body of intrusive igneous rock.
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| show | A very large igneous intrusion extending deep in the earth's crust.
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| show | A type of later vertical rock between older layers of rock.
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| show | Describes magma or igneous rock that is rich in magnesium and iron that is generally dark in color.
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| show | Describes magma or igneous rock that is rich in feldspars and silica and that is generally light in color.
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| show | The state of being thick, sticky, and semi fluid in consistency, due to internal friction.
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| show | The lava slowly flows out and forms flat layers that eventually make a shield volcano. The lava spreads out over a large area creating a flat base with gently sloping sides.
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| Pahoehoe Lava | show 🗑
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| Aa Lava | show 🗑
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| Blocky Lava | show 🗑
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| Explosive Eruption | show 🗑
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| Pyroclastic Material | show 🗑
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| show | Very small solid particles ejected from a volcano during an eruption which have intermediate axes measuring 2 mm or less.
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| Volcanic Dust | show 🗑
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| Lapilli | show 🗑
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| Volcanic Bomb | show 🗑
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| Volcanic Block | show 🗑
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| Shield Volcano | show 🗑
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| Cinder Cone | show 🗑
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| Composite Volcano | show 🗑
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| show | A large volcanic crater, typically one formed by a major eruption leading to the collapse of the mouth of the volcano.
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