Volcanoes<br />
Dormant<br />
Active<br />
Five Classifications of Volcanoes<br /><ul><li>Stratovolcano
Cinder Cone
Shield Volcano
Caldera
Lava Dome</li></li></ul><li>Stratovolcano<br /><ul><li>Also known as a composite cone
Built up from alternate layers of lava and ash
Form where you have ocean crust meeting</li></ul>continent crust (convergent zone).<br />Example:<br />Mount Fiji<br />
Convergent Zone<br />
Shield Volcano<br /><ul><li>Broad, Shallow cone
Layers of lava
Hot spots have shield volcanoes</li></ul>Example<br />Hawaiian Volcanoes<br />
Cinder Cone<br /><ul><li>Cone-shaped piles of tephra.
Throws out lava and ash into the air.
Divergent zones tend to have them in rift valleys</li></ul>( around stratovolcanoes).<br />
Divergent Zone<br />
Caldera<br /><ul><li>Usually collapes in on a stratovolcano or a hot spot.
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Ignite

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Ignite

  1. 1. Volcanoes<br />
  2. 2.
  3. 3. Dormant<br />
  4. 4. Active<br />
  5. 5. Five Classifications of Volcanoes<br /><ul><li>Stratovolcano
  6. 6. Cinder Cone
  7. 7. Shield Volcano
  8. 8. Caldera
  9. 9. Lava Dome</li></li></ul><li>Stratovolcano<br /><ul><li>Also known as a composite cone
  10. 10. Built up from alternate layers of lava and ash
  11. 11. Form where you have ocean crust meeting</li></ul>continent crust (convergent zone).<br />Example:<br />Mount Fiji<br />
  12. 12. Convergent Zone<br />
  13. 13. Shield Volcano<br /><ul><li>Broad, Shallow cone
  14. 14. Layers of lava
  15. 15. Hot spots have shield volcanoes</li></ul>Example<br />Hawaiian Volcanoes<br />
  16. 16. Cinder Cone<br /><ul><li>Cone-shaped piles of tephra.
  17. 17. Throws out lava and ash into the air.
  18. 18. Divergent zones tend to have them in rift valleys</li></ul>( around stratovolcanoes).<br />
  19. 19. Divergent Zone<br />
  20. 20. Caldera<br /><ul><li>Usually collapes in on a stratovolcano or a hot spot.
  21. 21. Can be up to 62 miles wide.
  22. 22. An older volcano with a large crater</li></li></ul><li>Lava Dome<br /><ul><li>Forms inside a previously erupted volcano.
  23. 23. Lava domes up and cools inside an old volcano.</li></ul>Example<br />Mt. St. Helens<br />
  24. 24. What comes out of them?<br />
  25. 25. Lava Flows<br />Pahoehoe-ropey<br />Aa-blocky<br />
  26. 26. Lahar or Mud flow<br />
  27. 27. Volcanic Ash<br />Ash Fall<br />Lapilli<br />(little stones)<br />
  28. 28. Volcanic Gases<br />
  29. 29. World’s Largest Volcano<br />Mauna Loa<br />Erupted -<br />33 times<br />
  30. 30. World’s Smallest Volcano<br />Taal<br />Erupted-<br />33 times<br />
  31. 31. Volcanic Eruptions are<br />Responsible for Thousands <br />Of Deaths Each Year<br />

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