Steep Slope Degrees Cinder Cone

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Presentation transcript:

Steep Slope 30-40 Degrees Cinder Cone

Medium to steep Slope 20-30 Degrees Composite Cone (Stratovolcano)

Gentle Slope 2-10 Degrees Shield Cone

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

Form from layers of ash and pyroclastic alternated with lava flows Composite Cone (Stratovolcano)

Form from layers from lava flows;Spreads over large areas and builds up much wider than tall. Shield Cone

Moderately explosive to highly explosive Cinder Cone

Highly explosive with a great deal of pyroclastic material at some times and very quiet a(gentle eruptions) at other times. Composite Cone (Stratovolcano)

Nonexplosive, quiet eruptions with little pyroclastic material. Shield Cone

Cinder Cone Smallest of the three basic types Slightly more wide than tall. Often less than 300m tall Cinder Cone

Middle sized compared to the shield and cinder type. Moderately more wide than tall.Often 2,000m to 2500m tall. Composite Cone (Stratovolcano)

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

Sunset Crater-Arizona Paricutin-Mexico Sunset Crater-Arizona Krakatoa-Indonesia Tambora-Indonesia Pelee-Martinique Cinder Cone

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)

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

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

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)

Often form over hot spots in the ocean. This is the type of volcano that makes up the Hawaiian islands. Shield Cone