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USGS CMG InfoBank Geology School: vent

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Title Comment Keywords
Volcanism 30 minutes / n.a. volcano, eruption, magma, lava, vent, "volcanic ash", temperature, gas, viscosity, "shield volcano", pumice, dome, "composite volcano", "plate tectonics"
Two Types of Lava 09:51 - 11:10 (01:19) / 3.4 MB viscosity, "lava flow", eruption, Hawaii, gas, pahoehoe, aa, "lava tube", temperature, "shield volcano", "composite volcano", vent
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
Mt. Katmai Eruption 16:39 - 17:50 (01:11) / 2.0 MB eruption, "Mount Katmai", Alaska, "volcanic ash", pumice, gas, volcano, "National Geographic Expedition", "Robert Fiske Griggs", vent, fumerole, swamp, woodland, "Valley of Ten Thousand Smokes"
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
A Unique Eruption 19:55 - 20:24 (00:29) / 0.5 MB "Mount Katmai", volcano, eruption, vent, caldera, geologist
Indirect Techniques Needed to Uncover Evidence 20:24 - 21:05 (00:41) / 1.2 MB volcano, geologist, vent, eruption
Magnetic Properties of Volcanic Rocks 21:48 - 22:48 (01:00) / 1.5 MB "Thomas Redfield", magnetism, geophysicist, vent, "magnetic field", temperature, "proton precession magnetometer", "diurnal variation", Noverupta, iron, dome, volcano
Gravity Measurements 22:48 - 23:44 (00:56) / 1.4 MB "Andrew Goodliffe", vent, "Mount Katmai", Noverupta, "volcanic ash", pumice, gravity, geophysicist, mass, volcano
Geology School Keywords
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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/ventc.html
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Page Last Modified: Thu Oct 31 04:24:53 PDT 2013  (chd)