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VOLCANIC VOCABULARY SHIELD Shield Volcanoes are: Usually Low Gentle Slope Wide Base Let’s Compare Y E CINDER CONE Cinder Cone Volcanoes are: Cone Shaped Steep Slope Made with “Cinders” Let’s Compare S u r COMPOSITE Also known as a STRATOVOLCANO Composite Volcanoes are: Broad Based Steep Top Alternates Quiet/Explosive Let’s Compare N o CALDERA A caldera is a large “caldron” like volcanic crater that has collapsed at the center. Caldera often fill up with rain to form a large, deep lake. Crater Lake in Oregon is the most famous caldera lake and is nearly 2,000 feet deep, making it the deepest lake in the United States The world’s largest caldera is not filled with water but is actually the world famous Yellowstone Park How it Works Other vocabulary words you are familiar with are: Magma – liquid rock under the surface Lava – magma that has reached the surface Hot Spot – an unusually hot area where magma breaks through the crust and forms a volcano. Hawaii is the most famous hot spot