what is a volcano? definition lava magma 1. low-silica 2. high-silica
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What is a Volcano?
• Definition• Lava• Magma 1. Low-silica 2. High-silica
Volcanic Eruptions• Quiet eruption 1. Low gas 2. Lava flows
Volcanic Eruptions (cont.)• Explosive eruption 1. High gas 2. Tephra 3. Particle size
Types of Volcanoes• Shield volcanoes 1. Low-silica 2. Lava flows 3. Description
Types of Volcanoes (cont.)• Cinder cone volcanoes 1. Low-silica/high gas 2. Fire fountains 3. Tephra 4. Description
Types of Volcanoes (cont.)• Composite volcanoes 1. High-silica 2. Lava flows/tephra 3. Description
Volcano Locations• Divergent boundaries 1. Rifts 2. Low-silica 3. Mid-ocean ridge
Surtsey
Volcano Locations (cont.)• Convergent boundaries 1. Subduction zones 2. High-silica 3. Ring of Fire
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