Mount Saint Helens is a stratovolcano, or composite volcano. That means it's tall and conical, and ejects lava and other ejecta in layers. Look here for more information: http://www.olywa.net/radu/valerie/StHelens.html
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it is located in washington it is a composite volcano
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Volcanoes question: What type of composite volcano is mount st Helens? a highly explosive one. boom! ... What type of volcano is your st helens? Question about mt st helens the volcano? Is mount st helens a composite or a sheld? What type of erruption was Mount St Helens? Type of composition does mount st helens have?
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Mount St. Helens - Wikipedia, the free encyclopedia
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Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is 96 mile south of Seattle and 50 mile northeast of Portl...
en.wikipedia.org/wiki/Mount_St._Helens
A native Washingtonian's look at the reawakening of Mount St. Helens ... MSH, an active stratovolcano (or composite volcano), is located in southwest Washington State, USA (46.20 N by 122.18 W) approximately a 3 hour drive south from Seattle, Washington (90 miles) and a 2 and 1/2 hour drive north from Portland,
www.olywa.net/radu/valerie/StHelens.html www.olywa.net/radu/valerie/StHelens.html
"This is exactly the kind of event that we've sort of been talking about and anticipating over the past several days. ... After that disaster, small eruptions continued at Mount St. Helens until 1986, when the volcano finally went quiet. Major said Friday's eruption was comparable to the minor eruptions seen during that period.
www.cnn.com/2004/TECH/science/10/01/mount.st.helens/ind... www.cnn.com/2004/TECH/science/10/01/mount.st.helens/index.html
"Climb A Volcano" ; Mount St. Helens, Washington ... Return to:; [Mount St. Helens National Volcanic Monument Menu] ... [Mount St. Helens National Volcanic Monument - Planning Your Visit Page] ... [Climb a Volcano Menu] ... [Mount St. Helens Menu] ...
vulcan.wr.usgs.gov/Volcanoes/MSH/NatMonument/climb_msh.... vulcan.wr.usgs.gov/Volcanoes/MSH/NatMonument/climb_msh.html
The Nature of Volcanoes; Volcanoes are built by the accumulation of their own eruptive products—lava, bombs (crusted over ash flows), and tephra (airborne ash and dust). A volcano is most commonly a conical hill or mountain built around a vent that connects with reservoirs of molten rock below the surface of Earth.
www.teachervision.fen.com/chemistry/lesson-plan/335.htm... www.teachervision.fen.com/chemistry/lesson-plan/335.html
The conventional K-Ar dating method was applied to the 1986 dacite flow from the new lava dome at Mount St Helens, Washington. Porphyritic dacite which solidified on the surface of the lava dome in 1986 gives a whole rock K-Ar ... Table 3. Potassium-argon data from the new dacite lava dome at Mount St Helens Volcano.
www.answersingenesis.org/tj/v10/i3/argon.asp
Mount St. Helens volcano in southern Washington has erupted many times during the last 4000 years, usually after brief dormant periods. This behavior pattern. suggests that the volcano, last active in 1857, will erupt again-perhaps within the next few decades.
www.sciencemag.org/cgi/content/abstract/187/4175/438