4.1 Plate Tectonics
Reading Assignment: Chapter 7 - Plate Tectonics: A Scientific Revolution Unfolds
Student Notes
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Learning Objectives
After reading, studying, and discussing the chapter, students should be able to:
7.1 Discuss the view that most geologists held prior to the 1960s regarding the geographic positions of the ocean basins and continents.
7.2 List and explain the evidence Wegener presented to support his continental drift hypothesis.
7.3 Discuss the two main objections to the continental drift hypothesis.
7.4 List the major differences between Earth’s lithosphere and asthenosphere and explain the importance of each in the plate tectonics theory.
7.5 Sketch and describe the movement along a divergent plate boundary that results in the formation of new oceanic lithosphere.
7.6 Compare and contrast the three types of convergent plate boundaries and name a location where each type can be found.
7.7 Describe the relative motion along a transform plate boundary and locate several examples on a plate boundary map.
7.8 Explain why plates such as the African and Antarctic plates are getting larger, while the Pacific plate is getting smaller.
7.9 List and explain the evidence used to support the plate tectonics theory.
7.10 Describe two methods researchers use to measure relative plate motion. 7.11 Summarize what is meant by plate–mantle convection and explain two of the primary driving forces of plate motion.
7.1 Discuss the view that most geologists held prior to the 1960s regarding the geographic positions of the ocean basins and continents.
7.2 List and explain the evidence Wegener presented to support his continental drift hypothesis.
7.3 Discuss the two main objections to the continental drift hypothesis.
7.4 List the major differences between Earth’s lithosphere and asthenosphere and explain the importance of each in the plate tectonics theory.
7.5 Sketch and describe the movement along a divergent plate boundary that results in the formation of new oceanic lithosphere.
7.6 Compare and contrast the three types of convergent plate boundaries and name a location where each type can be found.
7.7 Describe the relative motion along a transform plate boundary and locate several examples on a plate boundary map.
7.8 Explain why plates such as the African and Antarctic plates are getting larger, while the Pacific plate is getting smaller.
7.9 List and explain the evidence used to support the plate tectonics theory.
7.10 Describe two methods researchers use to measure relative plate motion. 7.11 Summarize what is meant by plate–mantle convection and explain two of the primary driving forces of plate motion.
A good 4-minute summary of Plate Tectonics
Convection currents in the mantle (1:13)
Intro to Plate Tectonics
Gregorio. 3:28