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USGS CMG InfoBank Geology School: crater

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Title Comment Keywords
Why We Find Few Craters on Earth 07:56 - 08:17 (00:21) / 0.9 MB "impact crater", crater, Earth, erosion
Eruptions From Rift Zones 06:05 - 06:45 (00:40) / 1.0 MB volcano, eruption, crater, "shield volcano", Hawaii, fissure, "rift zone", gravity, stress, pressure, magma, "lava flow", "summit vent", Kilauea
Volcanoes Die With Changes In Plate Boundaries 13:20 - 14:07 (00:47) / 0.8 MB "James Sadd", volcano, "convergent plate margin", "Panam Crater", gas, eruption, crater, pumice, magma, vent, plug, dome, obsidian, viscosity, silica
Volcanic Domes 14:07 - 14:44 (00:37) / 1.3 MB "volcanic dome", "composite volcano", "Mount Saint Helens", eruption, crater, dome, "volcanic ash"
Noverupta 17:50 - 18:26 (00:36) / 0.8 MB eruption, "Mount Katmai", Alaska, volcano, "National Geographic Expedition", Noverupta, "lava flow", dome, crater, caldera, magma, vent
Geology School Keywords
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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/crater.html
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Page Last Modified: Thu Oct 31 04:24:30 PDT 2013  (chd)