Volcanoes 2. Shield Volcanoes: broad at the base with gently sloping sides Form from: quiet...

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Shield Volcanoes: broad at the base with gently sloping sides Form from: quiet eruptions Example: Hawaiian Islands Types of Volcanoes

Transcript of Volcanoes 2. Shield Volcanoes: broad at the base with gently sloping sides Form from: quiet...

Volcanoes 2 Shield Volcanoes: broad at the base with gently sloping sides Form from: quiet eruptions Example: Hawaiian Islands Types of Volcanoes Mauna kea, Hawaii Medicine lake, California Cinder Cone Volcanoes: very steep sloping sides Form from explosive, pyroclastic eruptions Types of Volcanoes Capulin mountain, new Mexico Caja del Rio, New Mexico Sunset Crater, Arizona Lava Butte, Oregon Composite Volcanoes: mountains made of alternating layers of hardened lava and sediment Also known as stratovolcanoes Usually become very large volcanic mountains Types of Volcanoes Mt. Saint Helens, Washington Iceland Mt. Fuji, Japan Mt. Vesuvius, Italy Mt. vesuvius Casts of pumice ash Crater: a funnel-shaped pit at the top of a volcano Cont. How Volcanoes Form Caldera: A Large basin- shaped depressions that formed when a magma chamber empties and the volcano collapses into it Calderas Yellowstone Caldera Yellowstone Over a hot spot in Earths mantle and could have a massive eruption Crater Lake, Oregon Increases in earthquake activity Pressure from magma on the overlying rock changes the rock temperature The surface of volcano may bulge upward Predicting Volcanic Eruptions https://www.youtube.com/watch?v=e4PUOBIwEv0 Iceland eruption https://www.youtube.com/watch?v=z-PKOQZyLTA Ash hazard 2014 in japan (news) https://www.youtube.com/watch?v=v_VyKplXtOM Coca-cola Videos


Broad at the base and have gently sloping sides Quiet eruptions Ex: Hawaiian Islands.

Broad at the base and have gently sloping sides Quiet eruptions Ex: Hawaiian Islands.

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