Attached Files:
Note the attached PDF of this assignment…1. Explain thoroughly how it took 55 years (from 1915 until 1970) for the hypothesis of Continental Drift to develop into the theory of Plate Tectonics. Your answer should be no less than 500 words. (50 points)
READ THIS! – In other words, use the theory of Plate Tectonics to show how the Scientific Method was used to “flesh out” the hypothesis of Continental Drift put forth by Wegener, by adding new data provided by new technology and people until general buy-in was obtained in 1970, when the term “Plate Tectonics” was coined. (Chapter 1, especially 1.3, The Nature of Scientific Inquiry; and Chapter 2, especially 2.1 through 2.3, and 2.9, “Testing the Plate Tectonics Model”). Do not spend time discussing what came before 1915! Wegener did a great job of laying out the evidence he had available at the time. After your introductory paragraph, I do not expect to see the name “Wegener” again.
Be sure to explain:
2. Use plate tectonic theory to explain the origin of Mount St. Helens (and by extension, the Cascades and all Andean-type mountains). Your answer should be no less than 500 words. (50 points)In your answer, include a discussion of:
Important: know the meaning of the word PLAGIARISM – no plagiarism!
Attached Files:
Part 1. Hypothesis vs. Theory — Continental Drift vs. Plate Tectonics
Part 2. Cascade Mountains (including Mt. St. Helens) — an example of Andean Plate Boundary I have a special affinity for this volcano, since I had volcanic ash fall on my head some 550 miles to the east, at the edge of Yellowstone National Park (itself a “super” volcano!). That was Sunday evening, 18 May 1980, before most of you were born, I assume. I was driving back from a geology meeting in Utah, where I had listened to talks by USGS scientists describing the volcanic activity which had just begun two months earlier. I had not heard that the Mountain had erupted, because there was no radio reception along the way, through the mountains of Utah, Idaho, Wyoming and Montana. I was quite surprised when ash began to fall from the sky and show up in my headlights!The Google Earth image above shows how far the volcanic ash traveled in about 12 hours! The red triangles on the map are active volcanoes, and the yellow dots are earthquakes that occurred in the previous week.USGS Publication: Eruptions of Mount St. Helens: Past, Present, and Future:Link: http://vulcan.wr.usgs.gov/Volcanoes/MSH/Publications/MSHPPF/MSH_past_present_future.htmlLinks to several videos which will give you more of a feel for the power that was released on May 18th, 1980!
the following are closed captioned, on my YouTube channel (you’re welcome!)
This link will take you to the part of the USGS Volcanic Hazards Program website that summarizes the major types of volcanic hazards: http://volcanoes.usgs.gov/hazards/ Note the links to the main types of volcanic hazards:
This is a folder full of videos to help with your understanding of question 1 for assignment 1:
Link to the folder under “Videos…” at left.May 18th 1980, 8:32 AM
I can see clearly now – you’ll be wondering, in the very near future:
All good questions, I’m sure… The answers:
Attached Files:
Before you turn in this assignment, check your work – ask yourself:
You should submit your work in Blackboard, as an attachment to the assignment.*** acceptable attachment format: Adobe Acrobat (PDF), period
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