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Volcanoes
 

Volcanoes

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    Volcanoes Volcanoes Presentation Transcript

    • Volcanoes
    • 3 Types of volcanoes
    • What are Cinder cone volcanoes?
      • A cinder cone or also known as scoria cone is a steep conical hill of volcanic fragments that accumulate around and downwind from a volcanic vent. Cinder cones range in size from tens to hundreds of meters tall. Cinder cones are made of pyroclastic material
    • Cinder cone volcanoes
      • Holocene cinder cone near Veyo,Utah.
      • Sunset Crater in Arizona
      • Capulin volcano in New Mexico
    • What are Composite volcanoes
      • Composite volcanoes also called strato volcanoes, are formed by alternating layers of lava and rock fragments.  Between eruptions they are often so quiet they seem extinct.  To witness the start of a great eruption requires luck or very careful surveillance. Composite volcanoes usually erupt in an explosive way. 
    • Composite volcanoes
      • Tavurvur, an active stratovolcano near Rabaul in Papua New Guinea
      • Mount Fuji in Japan
      • Redoubt volcano
    • What are Shield volcanoes
      • A shield volcano is a volcano with shallow-sloping sides. Shield volcanoes normally form from fluid lava flows that can travel long distances across slight inclines. Some of the largest volcanoes on Earth are shield volcanoes.
    • Shield volcanoes
      • Medicine lake volcano in California
      • Rainbow range in Canada
      • Mauna Kea