Plate Margins Flashcards
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?
Identify the two types of tectonic crust.
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Oceanic and continental crust
Identify the two types of tectonic crust.
What is the name of the upper portion of the mantle?
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The asthenosphere
What is the name of the upper portion of the mantle?
Why are volcanoes not found along conservative plate margins?
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This is because a conservative plate margin, sometimes known as a transform fault, is where two plates move past each other without direct collision.
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Why are volcanoes not found along conservative plate margins?
Describe the physical processes that happen at a conservative plate margin.
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At a conservative margin, two plates move parallel to each other. They can be moving in the same or opposite directions. Pressure builds along the margin of tectonic plates. As friction is overcome the rock fractures releasing energy as an earthquake.
Describe the physical processes that happen at a conservative plate margin.
