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Objective: 7 November 2011. Compare and contrast the three types of volcanoes. Intro. Why do you think different eruption types make differently shaped volcanoes?. Types of Volcanoes. Types of Volcanoes. Shield Volcano. Built from layers of runny lava from multiple quiet eruptions
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Objective: 7 November 2011 Compare and contrast the three types of volcanoes. Intro 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
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
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
Effects of Volcanoes • Summary: • Describe a shield volcano. • Describe a composite volcano. • Describe a cinder cone volcano.
Objective: 7 November 2011 Compare and contrast the three types of volcanoes. Outro 3 things you learned 2 reasons why it’s important 1 question you still have
Composite Volcano Shield Volcano Cinder Cone Volcano