Steep Slope

30-40 Degrees

Cinder Cone

Medium to steep Slope

20-30 DegreesComposite 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

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. As high as 17km tall.

Shield Cone

Paricutin-MexicoSunset Crater-Arizona

Krakatoa-IndonesiaTambora-Indonesia

Pelee-Martinique

Cinder Cone

Mt. Fuji-JapanMt. Hood-USA

Mt. Ranier-USAMt. Shasta-USA

Mt. St. Helens-USAMt. Etna-Italy

Mt. Vesuvius-Italy

Composite Cone(Stratovolcano)

Mauna Kea-Hawaii(Tallest volcano in the world)

Olympus Mons- Mars(Tallest mountain in the solar system

Surtsey-IcelandLaki-Iceland

Kilauea-HawaiiMauna Loa-Hawaii

Shield 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.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