Directions

1. Select one (1) of the following questions for research. Research sources of information can include Internet sources, books, articles, videos, etc. Every explanation must include a picture/diagram that helps detail your answer.
   • How does Plate Tectonic Theory explain the difference between Mount Saint Helen’s-type eruption (explosive) and a Hawaiian-type eruption (effusive)?
     • Explain the difference between an explosive eruption that builds a stratovolcano and an effusive eruption that builds a shield volcano.
     • Provide a picture/diagram that displays the difference.
     • Explain the difference in tectonic environment of formation for each (convergent plate boundary vs. hot spot).
   • How do geophysicists use paleomagnetism to test the Plate Tectonic Theory?
     • How and when was paleomagnetism discovered?
     • Explain the details of paleomagnetism.
     • Explain how paleomagnetism discovery led to acceptance of Plate Tectonic Theory and provide a diagram or link to a animation/visualization.
   • What type of plate tectonic activity is currently taking place in the Red Sea and East Africa?
     • Discuss the processes that occur at this type of Plate Tectonic boundary.
     • Make a predictions as to what this area will look like 50,000,000 years in the future based on this Tectonic Plate movement.
     • Provide a diagram or link to a animation/visualization.
   • Will California really “fall into the ocean?”
     • Discuss the Tectonic Activity taking place at this type of plate boundary.
     • What will ultimately be the fate of California in the next 50 million years?
     • Provide a diagram or link to a animation/visualization.
   • Who was J. Tuzo Wilson?
     • What is a Wilson cycle?
     • Given an example of a complete cycle.
     • Provide a diagram or link to a animation/visualization

     Grading Criteria
     Demonstrates comprehension of research question through detailed explanations.	3 points
     Applies concepts, definitions, etc. from assigned readings or other reference resources.	3 points
     Includes an explanation of the importance to the study of Historical Geology.	2 points
     Picture or diagram provided	1 point
     Writing is clear, concise and free of spelling and grammatical errors. Uses APA Style to cite reference sources.	2 points
     Comments to two (2) other students’ postings.	4 points
     TOTAL	15 points

     Do not worry about the comments on 2 other students.