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Volcano Diagram pyroclastic material

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Presentation on theme: "Volcano Diagram pyroclastic material"— Presentation transcript:

1 Volcano Diagram pyroclastic material
Volcano - a place where magma reaches the surface due to its lower density. A “window” into the Earth’s interior A constructive & destructive force, creating new crust and destroying it in explosive eruptions vent side vent lava flow magma chamber

2 Explosive Eruptions: Examples & Description
Mt. St. Helens (1980) Mt. Redoubt, Alaska (1990) Examples include volcanoes along the Ring of Fire Briefly describe the eruption type Pinatubo (1991)

3 Explosive Eruptions: What makes magma explosive?

4 Explosive Eruptions: Types of Pyroclastic Material
(also called cinders)

5 Explosive Eruptions: Why are pyroclastic flows so dangerous?

6 Nonexplosive Eruptions: Examples & Description
Examples include volcanoes in Hawaii and along the Mid-Atlantic Ridge Briefly describe the eruption type

7 Nonexplosive Eruptions: Types of Lava

8 Types of Volcanoes: Shield Volcanoes
Describe (1) how it forms; (2) its shape; & (3) provide an example.

9 Types of Volcanoes: Cinder Cone Volcanoes
Describe (1) how it forms; (2) its shape; & (3) provide an example.

10 Types of Volcanoes: Composite Volcanoes
Describe (1) how it forms; (2) its shape; & (3) provide an example.

11 Volcanic Eruptions & Climate Change

12 Formation of Magma


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