Transcript Denali - maliszewski09

Denali
By Gary Cutler
How it was formed and where it is
• Denali was formed by erosion and frequent
earthquakes, also the mountains were formed
by the tectonic plates moving to make them
• Denali is located in south central Alaska, and
Denali was established as a national park in
1980. the region of its location has great views
and a mountain scenery; the park contains
Mt. McKinley Denali the highest point North
America
Special features
Mt. McKinley, the highest mountain in North America at 20,
320 feet, is at the heart of Denali National Park and
Preserve. Towering 18,000 feet above the neighboring
lowlands, the mountain, otherwise known as Denali, an
Athabasca Indian name meaning the "The High One", rivals
the vertical relief of the world’s greatest mountains. Mt.
McKinley is possibly the highest granitic platoon in the
world, which is undergoing continual tectonic uplift. The
majority of the rest of the mountains and rocks in the park
are sedimentary, a testament to the millions of years that
central Alaska was an open seaway.
Eco
Wheather: Denali National Park and Preserve straddles two of the
major climatic zones of Alaska — the transitional maritime zone
south of the Alaska Range and the continental zone in the interior
region, north of the range. The Alaska Range exerts a major
influence on the climate of the Interior by blocking much of the
moisture that sweeps inland from the Gulf of Alaska. Therefore, the
north side of the park is characterized by less precipitation and
greater fluctuations in temperature (hotter in summer and colder in
winter) than the south side. Temperatures of minus 50 degrees
Fahrenheit (°F) and lower are not unusual on the north side of the
range during winter, and although summer temperatures can climb
to 90°F, they can also fall below the freezing mark.
Ecosystem: A major fault system, known as the Denali Fault runs in
an arc through the Alaska Range and is the source of thousands of
earthquakes that rumble through the area each year. These
earthquakes, although frequent in number, generally go unnoticed
by humans due to their remote location
Technology
Denali national park uses cameras and light sincerest there is always
Has someone watching the cameras
Park Map
rocks
At Denali you can find many different
rocks but it has mostly granite and more
different ones that
Landform changes
Because of active plate tectonics, earthquakes are frequent in the
Denali area. It is estimated that there are some 600 seismic events
per year within the park boundaries at magnitude 1 (M1) or greater.
Most of these earthquakes (about 70%), average between M1.5 and
M2.5, and often occur near the surface (0-15 km/0-9 miles deep) at
locations all over the Park. But these events are not usually felt by
anyone because of the low magnitudes. A large share of earthquake
activity is right under Mount McKinley, frequently, at very deep
locations (90 – 125 km/54-75 miles deep), providing few people the
opportunity to experience them. This seismic activity at the root of
Denali suggests that uplift of the mountain continues to this day.
Numerous faults, including the Denali fault (a major fault system),
demonstrate a long history of active plate tectonics and associated
earthquake activity. That is one way Denali changes
Park diagram
Bibliography
Denali." U.S. National Park Service Experience Your America. Ed. Jack more. ,
Mar.-Apr. ed. Web. 28 May 2010.
<http://nps.gov>.