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11 Cards in this Set
- Front
- Back
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What is a plate?
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Outer part of the earth broken down into pieces
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How much do plates move a year?
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Inches or centimeters
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What is below the plate
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Asthenosphere
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What is plate composed of?
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crust and uppermost mantle
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Where do earthquakes occur?
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ONLY in lithosphere
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Do the temperatures increase or decrease in both lithosphere and asthenosphere?
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lithosphere temperatures increase quickly
asthensophere temperatures do not increase as fast |
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What happens to rocks in asthenosphere?
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rocks can convent
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How many major plates are there?
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10-12
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What are the two types of plates?
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oceanic and continental
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What are most pronouced at plate boundaries?
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earth quakes and rock deformation
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what are the three different types of plate boundaries?
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a. diverging plate boundaries (moving apart)
b. converging plate boundaries (moving together) c. transform plate boundaries ( shifting next to eachother) |
