Intro Objective: 7 November 2011 Compare and contrast the three types of volcanoes. Why do you think different eruption types make differently shaped volcanoes?

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Presentation transcript:

Intro Objective: 7 November 2011 Compare and contrast the three types of volcanoes. Why do you think different eruption types make differently shaped volcanoes?

Types of Volcanoes

Shield Volcano Built from layers of runny lava from multiple quiet eruptions Shallow, broad slope creating a flat, wide volcano Example – Name: Mauna Kea – Location: Hawaii Types of Volcanoes Flipchart pg. 2

Mauna Kea, Hawaii

Hualalai, Hawaii

Kilauea, Hawaii

Mt. Okmok, Alaska

Effects of Volcanoes Composite Volcano Alternates between quiet and violent eruptions Creates alternating layers of lava and ash debris (tephra) Broad bases and steep sides (looks like regular mtn.) Example – Name: Mt. St. Helens – Location: Washington, USA Types of Volcanoes Pg. 3

Mt. Fuji, Japan

Mt. St. Helens

Mayon, Philippines

Popocatépetl, Mexico

Mt. Kazbek, Georgia (the country)

Pinatubo, Philippines

Lassen Peak, California

Krakatoa, Indonesia

Types of Volcanoes Cinder Cone Volcano Made mostly of pyroclastic material from moderately explosive eruptions. Steep slopes but small in size Magma has high amounts of silica Example – Name: Paricutín – Location: Mexico Types of Volcanoes Flipchart Pg. 4

Sunset Crater, Arizona

Holocene, Utah

Parícutin, Mexico

Effects of Volcanoes Summary: – Describe a shield volcano. – Describe a composite volcano. – Describe a cinder cone volcano.

Outro Objective: 7 November 2011 Compare and contrast the three types of volcanoes. 3 things you learned 2 reasons why it’s important 1 question you still have

Shield Volcano Composite Volcano Cinder Cone Volcano