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Steep Slope 30-40 Degrees Cinder Cone
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Medium to steep Slope 20-30 Degrees Composite Cone (Stratovolcano)
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Gentle Slope 2-10 Degrees Shield Cone
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Pyroclasts fall out of the air onto each other and build up piles of debris that are weekly cemented together or not cemented at all. *They erode quickly. Cinder Cone
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Form from layers of ash and pyroclastic alternated with lava flows
Composite Cone (Stratovolcano)
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Form from layers from lava flows;Spreads over large areas and builds up much wider than tall.
Shield Cone
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Moderately explosive to highly explosive Cinder Cone
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Highly explosive with a great deal of pyroclastic material at some times and very quiet a(gentle eruptions) at other times. Composite Cone (Stratovolcano)
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Nonexplosive, quiet eruptions with little pyroclastic material.
Shield Cone
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Cinder Cone Smallest of the three basic types
Slightly more wide than tall. Often less than 300m tall Cinder Cone
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Middle sized compared to the shield and cinder type.
Moderately more wide than tall.Often 2,000m to 2500m tall. Composite Cone (Stratovolcano)
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Largest of the three basic types. Much more wide than tall
Largest of the three basic types. Much more wide than tall. As high as 17km tall. Shield Cone
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Sunset Crater-Arizona
Paricutin-Mexico Sunset Crater-Arizona Krakatoa-Indonesia Tambora-Indonesia Pelee-Martinique Cinder Cone
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Mt. Fuji-Japan Mt. Hood-USA Mt. Ranier-USA Mt. Shasta-USA
Mt. St. Helens-USA Mt. Etna-Italy Mt. Vesuvius-Italy Composite Cone (Stratovolcano)
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Shield Cone Mauna Kea-Hawaii (Tallest volcano in the world)
Olympus Mons- Mars (Tallest mountain in the solar system Surtsey-Iceland Laki-Iceland Kilauea-Hawaii Mauna Loa-Hawaii Shield Cone
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Cinder Cone -Often occur in clusters
-Usually erupt for short time and then go extinct -Often form on the sides of other volcanoes -Form at rift zones and convergent boundaries Cinder Cone
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One of the most common types of volcano
One of the most common types of volcano.Form at subduction zones of convergent boundaries Composite Cone (Stratovolcano)
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Often form over hot spots in the ocean.
This is the type of volcano that makes up the Hawaiian islands. Shield Cone
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