Volcanoes

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Volcanoes
Photo from www.monteverdeinfo.com/ volcano.htm

• By Monica Nontell

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Types of Volcanoes

• Shield Volcanoes
• Fat, short gently sloping Looks like a shield
• Built from basaltic lavas
• Click on picture for more information!

Photo from www.ngdc.noaa.gov/ seg/fliers/shield.s
html
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Types Cont

• Composite/Strata Volcanoes
• Upside down ice cream cone Wide bottom, narrow
  on top
• Composed of lava flow and pyroclastics
• Cinder Cones
• Small volcano
• Built of pyroclastics ejected from a vent
• Click on the picture to learn more about
  volcanoes!!

Photo from http//en.wikipedia.org/wiki/Volcanic_
cone
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Types of Lava

• Pahoehoe
• This is what most people think of when they hear
  lava.
• Very smooth, fast moving flow
• Similar to a river flow
• Aa
• Feels/Looks exactly how it sounds Ah Ah!
• Very rough, rocky, slow moving flow

Photo From http//www.decadevolcano.net/photos/ke
ywords/pahoehoe_lava.htm
Photo From http//lb.wikipedia.org/wiki/Lava
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Types of Materials Excreted

• Ash
• Can block sun sunlight
• Cause suffocation
• Can travel miles around volcano
• Boulders and bombs
• Large rocks
• Molten Rock
• Another name for lava
• Gas
• Sulfur

Photo from www.sveurop.org
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Location of Volcanoes

• Alaska
• Augustine recently erupted in early January of
  this year
• Hawaii
• Kilauea is a continuing to erupt daily
• Italy
• Most famous is Mount Vesuvius in Pompeii in 79 AD
  

• Yellow Stone National Park
• Volcano underneath the park that if it erupted,
  could destroy the entire park!

Photo From volcanoes.usgs.gov