Plate Margins Flashcards

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Describe the physical processes that happen at a destructive plate margin.
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When oceanic and continental plates collide the denser oceanic plate subducts the continental plate and enters the mantle where it melts. Magma can rise through the lithosphere and erupt as lava through volcanoes. As the oceanic plate subducts, it gets stuck due to friction. Pressure builds up until it is released as an earthquake.
Describe the physical processes that happen at a destructive plate margin.
Identify the two types of tectonic crust.
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Oceanic and continental crust

Identify the two types of tectonic crust.
Give an example of a location where volcanoes occur at a volcanic hot spot.
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Hawaii, Yellowstone and The Deccan Traps.
Give an example of a location where volcanoes occur at a volcanic hot spot.
Identify the type of volcano that forms on constructive plate margins
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Shield volcano

Identify the type of volcano that forms on constructive plate margins
What is a rift valley?
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A long, narrow valley lying between two normal geologic faults. Rift valleys usually form where the Earth’s lithosphere has become thin through extension associated with plate-tectonic processes.

What is a rift valley?




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