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Topic: Active Volcano


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In the News (Fri 24 May 19)

  
  Volcano - Facts, Information, and Encyclopedia Reference article
A volcano is a geological landform (usually a mountain) where magma (rock of the Earth's interior made molten or liquid by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet.
Some volcanoes consist of a crater alone, with scarcely any mountain at all; but in the majority of cases the crater is situated on top of a mountain (the volcano), which can tower to an enormous height.
Volcanoes that terminate in a principal crater are usually of a conical form.
www.startsurfing.com /encyclopedia/v/o/l/Volcano.html   (3634 words)

  
 Mount Vesuvius - Wikipedia, the free encyclopedia
The active cone is the high peak on the left side; the smaller one on the right is part of the Somma caldera wall.
The fleet also took on a rescue mission for those at the foot of the volcano when, as it was preparing to leave, a messenger arrived from a friend of Pliny’s living on the coast near the foot of the volcano imploring him to rescue her.
The volcano became quiescent at the end of the 13th century and in the following years it again became covered with gardens and vineyards as of old.
en.wikipedia.org /wiki/Mount_Vesuvius   (3853 words)

  
 Pagan, Northern Marianas, a Close-Up Look at an Active Volcano
Active volcanic seamounts parallel the frontal arc south to Guam.
The cinder cone is composed of scoria fragments.
The ash falling heavily from the volcano resembled brown snow.
www.heptune.com /pagan.html   (1158 words)

  
 Kdb Article- What makes a volcano active? - AOL Homework Help   (Site not responding. Last check: 2007-10-30)
Most volcanoes are found along, or near, the edges of tectonic plates.
In fact, since it sits on top of the ridge, the eastern side is moving to the east while the western side is moving to the west.
Most of these type of volcanoes are found in a "circle" around the edge of the Pacific Ocean.
homeworkhelp.aol.com /default?id=20050728204709990001   (340 words)

  
 Selected Products and Fact Sheets of the USGS Volcano Hazards Program
The Cataclysmic 1991 Eruption of Mount Pinatubo, Philippines
Mount Mazama and Crater Lake: Growth and Destruction of a Cascade Volcano
Glacier Peak—History and Hazards of a Cascade Volcano
volcanoes.usgs.gov /Products/sproducts.html   (349 words)

  
 Everything Science - New Software on NASA Spacecraft Monitors Active Volcano
After taking an image of Erebus, the software detected heat from the lava lake at the summit of the volcano and reprogrammed the camera to take more pictures.
Typically, it could take months to learn a remote volcano was active and scientists normally would need to take measurements at the volcano to detect the same type of event.
Future versions of the software also may be used to track dust storms on Mars, search for ice volcanoes on Europa, and track activity on Jupiter's volcanically active moon Io.
www.everything-space.com /content/view/11/2   (695 words)

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