ERTH Lab Assignment: Earthquakes & Volcanoes
1. Which plate margins create the deepest and most powerful earthquakes? What are those earthquakes called?
2. This Thanksgiving, your Uncle Morty is telling a story about a volcano that erupted and burned down an entire village. He goes on and on about the devastation, "The magma was everywhere. The poor village people watched as rivers of magma leveled their homes!" As bad as you feel for those villagers, you feel even worse for Uncle Morty. What is he saying wrong, and how would you correct him?
3. Increasing pressure causes rock at depth to melting.
4. Decreasing pressure will increase/decrease the melting point of a rock? (circle one)
5. What are the three most common magma compositions? List them in order of viscosity, with 1 being the most viscous.
6. Higher viscosity = sticky/runny liquid. (circle one)
7. What is the dominant substrate, or rock composition on the central plateau, in Yellowstone? Do you remember what the big pink blob was from the mapping lab? When this substance was erupted, was it runny or sticky?
8. Would you expect a substance with high viscosity to hold gases more effectively, or less effectively? What can you say about the explosivity of volcanoes based on this relationship? Volcanoes with higher viscosity magma will erupt with more or less explosivity?
9. Name the 3 TYPES of volcanoes. Not the shape!
10. Name 3 different volcano SHAPES, and give an example of each.
Format your assignment according to the following formatting requirements:
1. The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
2. The response also include a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.
3. Also Include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.