Volcanic Rocks

Table of Contents

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• Volcanoes & Volcanic Rocks
  
• Rock types
  
• Igneous rocks
  
• Devils Tower, Wyoming
  
• Columnar basalt
  
• Paricutin, Mexico
  
• Cinder Cone, Lake Turkana, Kenya
  
• Aleutian Island, Alaska
  
• Cotopoxi Volcano, Ecuador
  
• Skjaldbreidur Shield Volcanoe, Iceland
  
• Popocateptl, Mexico
  
• Anak Krakatoa
  
• Valley of the 10,000 Smokes, Alaska
  
• Valley of the 10,000 Smokes, Alaska
  
• Valley of the 10,000 Smokes, Alaska
  
• Valley of the 10,000 Smokes, Alaska
  
• Layers of ash, Iceland
  
• Ash deposits, Iceland
  
• Krafla Volcanics, Iceland
  
• Fracture in Iceland
  
• Laki Fissure, Iceland
  
• Volcanic Ridge, East African Rift, Kenya
  
• Lava Flow, Iceland
  
• Basalt flows, Hawaii
  
• Lava fountain, Hawaii
  
• Pahoehoe flows, Galapagos, Ecuador
  
• Obsidian domes, Inyo, California
  
• Basalt flows at Idaho Falls
  
• Pillow lavas
  
• Pillow lavas
  
• Pillow lavas, Reykjanes Penninsula, Iceland
  
• Pompeii today
  
• Pompeii victim - mummified
  
• Mt. St. Helens
  
• Mt. St. Helens mudflow
  
• Nevada del Ruiz
  
• Town destroyed by Nevada del Ruiz