Three Main Types of Volcanoes

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Learning Objective

Gain understanding of the three different types of volcanoes including the composition material, shape, height, and process of eruption and formation.

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Is there more than

one type of volcano?

What are volcanoes made of?

What causes a volcano to

erupt?

What are the heights of different volcanoes?

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CinderCones

Composite Volcano

ShieldVolcanoes

Composition Material

Particles and blobs of congealed lava

Material erupted through the conduit

Fluid lava flows

Shape Circular or oval cone

Steep-sided, symmetrical cone

Flat, domical shape,sloping cone

Height As much as 1,000 feet

As much as 8,000 feet

As much as 1,500 to 2,000 feet

Cinder cones, also known as Scoria cones, are the most common type of volcano.

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http://www.gly.fsu.edu/~salters/GLY1000/9Volcanoes/Slide26.jpg

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Composite volcanoes, also known as Stratovolcanoes, are the most picturesque, but

deadly volcanoes.

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http://www.gly.fsu.edu/~salters/GLY1000/9Volcanoes/Slide36.jpg

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Shield volcanoes are some of the largest volcanoes on earth.

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http://mail.colonial.net/~hkaiter/earth_science_images/Slide19.jpg

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Cinder Cones

Composite Volcano

Shield Volcanoes

Formation

Fallen cinders from violent gas charged explosions

solidify

Accumulation of material

erupted through the conduit

Lava flow pours out in all

directions

Eruption Types

Strombolian Plinian Hawaiian eruptions which include steady

lava fountaining

Danger Level

Medium danger level

associated with eruptions.

Most deadly volcano type.

Low danger level

associated with eruptions.

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Lava flow

Gas charged lava

http://media-2.web.britannica.com/eb-media/48/4948-004-9AC9A872.jpg

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Column of gas and volcanic ash.

Gas and volcanic ash high in

stratosphere.

http://media-2.web.britannica.com/eb-media/48/4948-004-9AC9A872.jpg

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Layers of lava and ash

Lava fountaining

http://media-2.web.britannica.com/eb-media/48/4948-004-9AC9A872.jpg

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References

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http://www.gly.fsu.edu/~salters/GLY1000/9Volcanoes/Slide26.jpg

http://www.gly.fsu.edu/~salters/GLY1000/9Volcanoes/Slide36.jpg

http://mail.colonial.net/~hkaiter/earth_science_images/Slide19.jpg

http://media-2.web.britannica.com/eb-media/48/4948-004-9AC9A872.jpg

http://pubs.usgs.gov/gip/volc/types.html

http://geology.sdsu.edu/how_volcanoes_work/Hawaiian.html

http://geology.sdsu.edu/how_volcanoes_work/stratovolc_page.html

http://geology.sdsu.edu/how_volcanoes_work/scoriacone_page.html

http://www.scenta.co.uki/nature/volcanoes/volcano_types.cfm

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I AM REALLY PROUD

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• The way Smart Art enhances the presentation.• The time and effort spent, which shows.• The use of text and object animations.• The organization of the information presented.• Use of page numbers and labels.• Overall effectiveness and professionalism of presentation.