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- PAGE 7 - Unit 6: Geology: Plate Tectonics Tectonic Plate Movement Convergent Boundaries A __________________________ is a location where two plates are ____________________________________________. Plate collisions occur _________________________________________________________________. There are three possible scenarios that can occur at a convergent plate boundary: 1. ___________________________________________ Ocean plate collides with a Continental plate. 2. ___________________________________________ Ocean plate collides with an Ocean plate. 3. ___________________________________________ Continental plate collides with a Continental plate. Oceanic-Continental Convergence An ocean and continental plate collide. The __________________________________ is made of __________________________ materials as thus _____________ over the ocean crust. The ________________________________________ sinks, or ____________________ under the continental crust and ____________________________ The location where this occurs is called a _________________________________________. V-shaped The subducting ocean plate creates a _______________________ as it sinks under the continental plate. Trench As the ________________________________________________________________________________________________________________________. The __________________________________________________________________________________ at a lower temperature than they normally would. The ___________________________________________________________________________________________, where it continues to melt more rock. Eventually the magma will _______________________________________________The ______________________________________________________ Volcanic _______________________________________________________________________________ (along the entire length of the subducting plate). This forms a ___________________________________________. EXAMPLES: ___________________________________________________________________________________________________ Oceanic-Oceanic Convergence An ocean and another ocean plate collide. The ocean plate that is ________________________________________________________________________________________ into the asthenosphere. Typically the ___________________ the rock on the plate, the ________________________________ it will be. Once the plate __________________________________________________, giving off water, thus causing even more rock to melt in the mantle and crust. The ___________________________________________________________________________________________________________________________ As the volcanic mountains grow, they will ____________________________________________________________________________________________ These islands are called ___________________________________. EXAMPLES: ___________________________________________________________________________________________________ Continental – Continental Convergence Two continental plates collide with one another. __________________________ of the continental plates ______________________________ because they are both ____________________________. The _____________________________________ where the ___________________________________________________________________________ as both plates are ______________________________________________________________________________________________________________ EXAMPLES: ___________________________________________________________________________________________________ Type of Boundary Divergent - Divide - Plate are moving apart Type of Crust Resulting Features Examples Oceanic-Oceanic Continental-Continental Convergent - Collide - Plates are moving together Oceanic-Continental Oceanic-Oceanic Continental-Continental Transform / Strike Slip -Slide - Plates are sliding past each other Continental-Continental Homework Questions: 12 POINT HOMEWORK ASSIGNMENT !!! - YOU CAN NOT AFFORD TO NOT DO THIS ASSIGNMENT. You must write these answers on a separate sheet of paper to earn full credit. You answers must also be complete sentences. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. How would the behavior of two plates that are said to be along a convergent boundary best be described? Can you visibly watch the motion of two plates colliding into one another. If so, how? If not, why? What are the three possible types of convergences that can occur when two tectonics plate collide with one another? During Oceanic-continental convergence, which plate sinks into the mantle? Why does it do this? Define the word “Subduction.” What happens to the subducting plate as it enters the asthenosphere? What effect does water have on the rocks of the mantle? What is name of the end feature created as a result of oceanic-continental convergence? Draw and label a diagram of oceanic-continental convergence. Provide two examples of oceanic continental convergence. EXPLAIN how oceanic-oceanic convergence differs from oceanic-continental convergence. What is the name of the structure of volcanic mountains produced during oceanic-oceanic convergence? Draw and label a diagram of oceanic-oceanic convergence. Provide two examples of oceanic-oceanic convergence. Write a few sentences summarizing the process of continental-continental convergence. Draw and label a diagram of it as well. Provide an example of continental-continental convergence. Also- Do the Chapter10 review questions (page 294-295) Questions #1-19 Advanced classes also do Questions #23-24-25.