Chapter 7 Section 3 Theory of Plate Tectonics
- Slides: 22
Chapter 7 Section 3 Theory of Plate Tectonics Tectonic Plate Boundaries There are three types of tectonic plate boundaries: • Transform Boundaries • Convergent Boundaries • Divergent Boundaries < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Tectonic Plate Boundaries, • When two tectonic plates slide past each other horizontally, the boundary between is called a transform boundary. < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Tectonic Plate Boundaries, continued • When two tectonic plates collide, the boundary between them is a convergent boundary. < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Tectonic Plate Boundaries, continued • When two tectonic plates separate, the boundary between them is called a divergent boundary. < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Tectonic Plate Boundaries, continued Your turn! < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Transform Boundaries Example: San Andreas Fault Earthquakes! < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Divergent Boundaries - new sea-floor forms Example: Mid. Atlantic Ridge < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics Convergent Boundaries There are three types of convergent boundaries. Reminder: oceanic crust is denser than continental crust. < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics 1. Oceanic + Oceanic = Subduction One plate goes under the other Features: volcanic islands, underwater volcanoes Ex: Mt. Fuji, Ring of Fire < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics 2. Oceanic + Continental = Subduction Oceanic crust is pushed down Features: volcanic mountains Ex: Mount St. Helens < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics 3. Continental + Continental = Build-up Both plates buckle, and push the crust upward Features: mountain ranges Ex: Himalayas < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics < Back Next > Preview Main
Chapter 7 Section 3 Theory of Plate Tectonics < Back Next > Preview Main