Sales: Sales: Support: Support:
Academic writing services  
Custom written essay Book report Research paper Dissertation Resume and CV Editing and proofreading  
main menu
By ordering custom paper you get
  • 24/7 Support
  • Over 100 professional US Writers
  • 300 words per page
  • Flexible discount system
  • FREE revision (within 2 days)
  • Anti-Plagiarism Software Check
we accept
sample essays
Accounting Essays
Admission Essays
Analysis Essays
Art Essays
Biography Essays
Biology Essays
Book Review Essays
Business Essays
Case Studies Essays
Cause and Effect Essays
Character Analysis Essays
Communication Essays
Communication and Media Essays
Compute Technologies Essays
Consideration Essays
Controversial Essays
Description Essays
Economics Essays
Education Essays
Evaluation Essays
Explanation Essays
History Essays
Job Essays
Law Essays
Management Essays
Medicine Essays
Music Essays
Personal Essays
Personal Experience Essays
Persuasive Essays
Persuasive Speech Essays
Philosophy Essays
Political science Essays
Politics Essays
Proposal Essays
Psychology Essays
Reflective Essays
Religion Essays
Research Essays
Response Essays
School Essays
Science Essays
Sociology Essays
Technology Essays
World Literature Essays
Information Sheet for MT. St. Helens essay
← Case Study: Quantitative ReasoningCommunity Demographics and School Data →

Information Sheet for MT. St. Helens. Custom Information Sheet for MT. St. Helens Essay Writing Service || Information Sheet for MT. St. Helens Essay samples, help

Volcanic activity takes place when there is an unexpected or constant discharge of energy brought about by a surface or near-surface movement of magma. The energy can be accumulated due to geothermal activity, earthquakes, fiery discharge of gases, and non-explosive excursion or incursion of magma.

Pyroclastic Flow of Mt. St. Helens in 1980

Mt. St. Helens, which is the object of curiosity, exhibited some phenomenal volcanic activity in 1980. During the May 18, explosion of Mount St. Helens most of the pyroclastic flow was created when bulging heaps of inflated ash and rocks blew up to a few hundred meters like a spray above the internal crater and then broke through the open crater. The pyroclastic flows appeared before the vertical explosion column in the August 7 and July 22 blasts of Mount St. Helens. Each of the eruptive stages started with a spray of gases and pyroclasts from the mouth of the vent, which then produced a pyroclastic concentration current.

A Cross Section of Mt St Helens before the Eruption

As shown in the diagram above, the earth  which the mountain consisted of had the effect of suppressing the magma that was seeking its way out. Pressure of the magma was finally too high for the mountain to restrain and it exploded with considerable force through the rocks.

Pyroclastic flows can be created in a number of ways. The usual acceptance is that the major cause of pyroclastic flows is gravitational crumbling of upright eruption columns. The transformation, as observed in the flare-up of Mt. St. Helens, from expulsion of gases to the perpendicular column activity is believed to be brought about by an enhancement of the gas substances in the eruption spurt or a reduction in vent circumference with time (Branney, Kokelaar & Kokelaar, 2002). Enormous lateral explosion from Mount St. Helens on May 18 1980 affected territory within a 30 km radius from the central point of the volcano, uprooting and tossing giant trees as though they were matchsticks. The volcanic explosion moving at speed of up to 1100 km per hour demolished approximately 600 Sq KM of vegetation and structures.

The intensely hot temperatures of gas and rocks in the pyroclastic current estimated to be between 200°C and 700°C ruined the entire area accessed by the flow. At Mount St. Helens, the splurge emitted a powerful, North-directed tangential discharge of ash, rock, and searing gases (Parchman, 2005). To the South, the destroyed area was smaller. It affected there only a small area down the slope from the peak. Together with older volcanic fragments, the explosion also comprised of the first magmatic substances created by the eruption of Mount St. Helens signifying that the avalanches and the resultant blast had uncovered the cryptodome magma.

Even though the lateral explosion started some time after the debris landslide, the blast's speed was unprecedented and it soon passed the avalanche (Morris & Austin, 2003). The near-supersonic tangential explosion, laden with volcanic fragments, caused extensive damage on the territory as far as 1900 kilometers from the volcano. The fragments and mudflows from the volcanic activity of Mt. St. Helens reportedly obscured the Toutle basin to a depth of nearly 50 meters (Dale, Swanson, Crisafulli & Franklin, 2005). Mt St Helens’ height was cut by over 1,300 feet because of the explosions that lasted for more than eight hours. Sadly, along with the numerous animals that were decimated, 57 individuals were reported dead because of the eruption (Carson, 2000). All visitors are cautioned not to walk around the mountain without a tour guide.

Information Sheet for MT. St. Helens. Custom Information Sheet for MT. St. Helens Essay Writing Service || Information Sheet for MT. St. Helens Essay samples, help

Order Now
Order nowhesitating

Related essays

  1. Community Demographics and School Data
  2. Primary Source Investigation
  3. Case Study: Quantitative Reasoning
  4. Definition of Public Relations

order now

Order now
why choose us
96% of satisfied returning customers
24/7 customer support
A wide range of services
Up-to-date sources
100% privacy guaranteed
MA/PhD writers
Custom written papers only
Free plagiarism report (on demand)
Free revision (within 2 days)
Free cover and bibliography page
Direct communication with a writer
Are your writers qualified for the custom writing?
How quick can my order be accomplished?
Is it legal to buy custom essays, term papers or book reports from your company?
Are essays offered by your company truly custom-written?
Is it safe to buy from
How secure is the payment system of your company?
Can I submit custom essays or term papers done by your company as my own?
How can I contact your company if I've got problems with my ordered paper?

Finally, I've found the real custom writing service . My grades are saying "Thank you, it's been a pleasure to work with you."

Jamal, South Africa

I can't believe you finished my essay under such a short deadline! You saved me from a disaster once again. You guys deliver exactly what you promise. I'll be back. That's for sure!

William H , Kansas, US

contact us
Toll free for US & Canada only. International callers are charged for outgoing calls.

Our phone numbers: provides custom term paper writing/rewriting services inclusive of research material for assistance purposes only. The term papers should be used with proper reference and are not meant to replace actual assignments.

Get 15% off your first custom essay order

Order now

from $12.99/PAGE