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Volcanoes
Current Eruption Reports
Volcano Alpha Table
Volcanoes by Country
Central Andes (Subsite)
Extraterrestrial Volcanoes
Hawaiian Volcanism
Mount Saint Helens
Japan Overview
Teachers
Earth Science Lessons
Plate Tectonics
Earthquakes and Volcanoes
Eruptions
Rocks and Minerals
Prehistoric Earth
Learn More
Building Volcano Models
Types of Volcanoes
Volcano Factoids
Working on Volcanoes
Submarine Volcanoes
Hydrovolcanism
Tsunamis
Volcanic Minerals
Volcanic Lightning
Volcanic Sounds
Volcanic Gases
Lava Domes
Columner Jointing
Fun Stuff!
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Glossary beginning with J
Volcano Term Definitions
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Click one of the letters above to advance the page to terms beginning with that letter.
j
Juvenile
Pyroclastic material derived directly from
magma
reaching the surface.
