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An animation showing viscous lava forming a violent volcanic eruption. Volcanic gases cannot easily escape through thick lava, so it builds up until it is released in an explosive eruption. ... Free-flowing lava An animation showing free-flowing lava from a vent. Volcanic...
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www.yenka.com/freecontent/item.action?quick=12y
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Chemistry question: Difference between viscous and non viscous lava? Viscous lava is very sticky and thick and is more felsic (ie it contains more silica) than non-viscous lava. This type of lava makes ... Viscous lava is very sticky and thick and is more felsic (ie it contains more silica) than non-viscous lava.
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wiki.answers.com/Q/Difference_between_viscous_and_non_v...
wiki.answers.com/Q/Difference_between_viscous_and_non_viscous_lava
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I don't know about viscous, but a lava dome is a steep-sided dome of thick lava extruding from a volcanic vent. a viscous lava dome is when the lava from the volcano contains alot of silica. Viscous=sticky. So the lava cools quickly of the ...
http://wiki.answers.com/Q/What_are_viscous_lava_domes
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Cooling viscous lava often clogs a volcanic vent, allowing pressure behind the blockage to build; trapped gasses within the lava also add to the pressure, eventually producing cataclysmic explosions, ejecting great clouds of volcanic ash and gas, and producing pyroclastic flows.
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www.experiencefestival.com/a/Lava/id/1895789
www.experiencefestival.com/a/Lava/id/1895789
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Volcanic domes are mounds that form when viscous lava is erupted slowly and piles up over the vent, rather than moving away as a lava flow. The sides of most domes are very steep and typically are mantled with unstable rock debris formed during or shortly after dome emplacement.
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vulcan.wr.usgs.gov/Glossary/Domes/description_lava_dome...
vulcan.wr.usgs.gov/Glossary/Domes/description_lava_dome.html
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Volcanic domes are mounds that form when viscous lava is erupted slowly and piles up over the vent, rather than moving away as a lava flow. The sides of most domes are very steep and typically are mantled with unstable rock debris formed during or shortly after dome emplacement.
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vulcan.wr.usgs.gov/Glossary/LavaFlows/description_lava_...
vulcan.wr.usgs.gov/Glossary/LavaFlows/description_lava_flows.html
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Although felsic lavas are generally associated with explosive Plinian-type eruptions, they sometimes extrude at the surface as relatively cold, viscous lava domes. Vesiculation during eruption will deplete the magma in volatiles, thus depriving the magma of the very gases needed for a sustained eruption.
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www.geology.sdsu.edu/how_volcanoes_work/Domes.html
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www-odp.tamu.edu/publications/183_SR/012/012_f1.htm
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Describes the volcanic activity that occurred along the southern part of the Mono-Inyo Craters volcanic chain about 600 years ago. ... Lava flows erupt quietly after explosive activity...
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quake.wr.usgs.gov/VOLCANOES/LongValley.old/InyoEruption...
quake.wr.usgs.gov/VOLCANOES/LongValley.old/InyoEruption/InyoFlows.html
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