In five pages this paper examines the volcano geologically and considers its eruptions of 1857 and 1980 and recovery efforts. Eight sources are cited in the bibliography.
Name of Research Paper File: D0_BWgeodis.rtf
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for modern scientist to understand the post-eruptive aspects of an active volcano in terms of both the anomalies caused and the recovery of the surrounding affected areas. Bibliography lists 8
sources. BWgeodis.rtf Mount Saint Helens By: C.B. Rodgers - October 2001 -- for more information
on using this paper properly! Introduction Located in the Cascade Range in Washington State, Mount Saint Helens, a volcano that had been dormant since 1857, erupted on May 18,
1980. The eruption was so powerful that virtually the entire top of the mountain was blown off and clouds of ash and gases were sent, according to Berardelli (1996), to
an altitude of 12 miles. The blast killed at least 60 people and destroyed all life in an area of approximately 70 square miles; a vast area of Washington and
Oregon was covered with ash and debris. The eruption caused pyroclastic flows (ash flows) and many mudflows (rock and debris), the largest of which produced deposits so extensive and that
they reached and blocked the shipping channel of the Columbia River which is about 70 river miles from the volcano. Berardelli makes note that there are approximately 1,500 active volcanoes,
including 40 within the continental United States. Composition of the "Fuji of America" Because of its beauty and shape, Mount Saint Helens was known as "the Fuji of America." It
had a similar cone top that stood alone on the landscape creating a remarkably beautiful scene. The U.S. Geological Survey described Mount Saint Helens, as being like most other Cascade
range volcanoes -- an enormous cone of rubble consisting of lava rock interlayered with pyroclastic and other deposits. Volcanic cones of this internal structure are called composite cones or stratovolcanoes.