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Support provided by: NOVA MENU Watch TV Schedule Education Shop NOVA Watch TV Schedule Education Shop NOVA Search... share Anatomy of a Volcano By Lexi Krock Posted 11.12.02 NOVA Whats the difference between lava and magma? What are volcanic vents, dikes, and fissures? In this anatomy of a volcano, explore the basic g
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Search NASA.gov Topics Missions Galleries NASA TV Follow NASA Downloads About NASA Audiences Latest Related 'Space Fabric' Links Fashion and Engineering an hour ago NASA Tests Robotic Ice Tools 19 days ago How A.I. Captured a Volcano's Changing Lava Lake a month ago Futuristic Clock Prepared for Spa...
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A volcano is a rupture in the crust of a planetary-mass object , such as Earth , that allows hot lava , volcanic ash , and gases to escape from a magma chamber below the surface. Earths volcanoes occur because its crust is broken into major, rigid tectonic plates that float on a hotter, softer layer in its mantle. Ther
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