formed when the juan de fuca plate, an oceanic plate, pushed under the north american plate, a...
TRANSCRIPT
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Mt. St Helens, New Mexico
Alex Merber, Sam Doyle, Aaron Levin
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Geological Origin
Formed when the Juan de Fuca plate, an oceanic plate, pushed under the North American plate, a continental plate.
Magma forced up through the Earth's crust, forming Mount St. Helens.
Part of the Pacific Ring of Fire, a volcanic region in the pacific.
Convergent Boundary
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Ecological History
Coniferous forest, some regions are temperate forest
Monthly precipitation
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Ecological History
Monthly temperature
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Ecological History Pacific tree frog, northwestern garter
snakes, northern alligator lizard Western meadowlark, mallard, wood
duck Common nighthawk, bald eagle Black-tailed deer, coyote, and cougar.
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Threats to the park
In 2004, many mining claims were made Other claims to land were made by land
purchasers from the federal government under the 1872 Mining Law
In 2008 there were plans for a massive Copper mine
Canadian mining companies are very interested in building a large scale mine on the edge of the Mt. St. Helen boundary
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Mt. St. Helens
Made into a national monument in 1982
In the process of being made a National Park
The US Forest Service is responsible for it’s protection
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Endangered and Threatened Species
Some endangered species include the Black Rock Fish and Lewis’s Woodpecker
The Spotted Owl is threatened and lives in the region
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Human History
The Mt. St. Helens Region is considered sacred to Native American Tribes such as the Yakama Tribe
The area was also used for recreational activities such as: Swimming, camping, hiking, boating and skiing.
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Why Should We Preserve?
Largest Volcanic mountain in the Continental United States
Many plant and animal species call this region their home
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On May 18th, 1980…
http://www.youtube.com/watch?v=UK--hvgP2uY
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Causes of eruption
A bulge formed on the northern face of the mountain
Preceding months, series of earthquakes and steam-venting episodes occurred
Magma fractured bulge and eruption occurred
First major eruption in US since Lassen Peak, CA in 1915..
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Fun Facts:
2.77 billion dollars of damage resulted from the eruption.
The destroyed landscape evolved to a very rich, diverse area
Most of the mountain is 3000 years younger than the pyramids in Egypt
Thousands of bird, mammal, reptile and amphibious species died during the 1980 eruption.
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Sources
http://wdfw.wa.gov/lands/wildlife_areas/mount_saint_helens/
http://www.weather.com/weather/wxclimatology/monthly/graph/060301:13
http://www.pewenvironment.org/news-room/reports/ten-treasures-at-stake-85899358611
http://mountsthelens.com/history-1.html
http://wdfw.wa.gov/conservation/endangered/All/
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Sources (Continued)
http://wdfw.wa.gov/conservation/endangered/status_review/
http://pubs.usgs.gov/gip/103/