Volcanoes
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Volcanoes. Types of Volcanoes. Volcanoes are classified under 4 categories: Shield Volcanoes Cinder Cone Composite or Stratovolcanoes Lava Domes. Shield Volcanoes. Quiet & non-explosive; Great masses of lava quietly ooze out from an opening in the earth's crust ; Liquidy lava;

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Volcanoes

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Volcanoes


Types of Volcanoes

Volcanoes are classified under

4 categories:

Shield Volcanoes

Cinder Cone

Composite or Stratovolcanoes

Lava Domes


Shield Volcanoes

  • Quiet & non-explosive;

  • Great masses of lava quietly ooze out from an opening in the earth's crust;

  • Liquidy lava;

  • Gently sloping cone.

  • The largest volcanoes on earth


Shield Volcanoes

Mount Kilauea, Hawaii, USA


Shield Volcanoes

Mauna Loa, Hawaii, USA


Cinder Cone Volcanoes

  • Explosive volcanoes;

  • Volcanic bombs, cinders, and ash are hurled out of an erupting volcano;

  • Most have a bowl-shaped crater at the summit

  • Some of the tallest volcanoes


Cinder Cone Volcanoes

Mount Etna in Italy


Cinder Cone Volcanoes

Tavurvur, Papua New Guinea


Cinder Cone Volcanoes

Mount Veniaminof, Alaska


Composite orStratovolcanoes

  • Also called: STRATOVOLCANOES

  • Alternating layers of lava and cinders on earth;

  • Consists of many separate vents


Stratovolcanoes


Stratovolcanoes

Mount Vesuvius Erupting (Italy)


Stratovolcanoes

A victim found from Pompeii


Stratovolcanoes

Mount Fuji, Japan


Stratovolcanoes

Mount Ranier, Washington, USA


Stratovolcanoes

Mount Hood, Oregon, USA


Stratovolcanoes

Mayon Volcano, Luzon Island, Philippines


Stratovolcanoes

Mount St. Helen’s, Washington, USA


Stratovolcanoes

Ararat, Turkey


Lava Dome Volcanoes

  • Volcanic or lava domes are formed by relatively small, bulbous masses of lava that are very viscous (sticky & gooey)

  • A steep-sided mass

  • Its surface is often rough and blocky as a result of fragmentation of the cooler, outer crust during growth of the dome


Lava Dome Volcanoes


Lava Dome Volcanoes

Lassen Park Dome Volcano


Lava Dome Volcanoes

Mount Pelee, West Indies


Lava Dome Volcanoes

Montserrat, West Indies


Lava Dome Volcanoes

Montserrat, West Indies


  • Recent Volcanic Eruption Mini-research Project

  • Your task:

  • Find a recent volcanic eruption and write a small report about the volcano.

  • Be sure to include the name of the volcano, the type of volcano, and date of the most recent eruption, a description of the eruption, and the impact on the environment.

  • Use the following link to find some interesting info:

  • http://volcano.und.nodak.edu/vwdocs/current_volcs/current.html


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