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9 Cards in this Set
- Front
- Back
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Speed of plate motion |
1 to 6 inches a year |
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Lithosphere |
The lithosphere is the area between the Earth's crust and pay of the upper mantle |
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Oceanic Plates |
Oceanic plates are plates below the ocean. Sima is the part of the oceanic crust. It is made of silicon and magnesium. |
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Continental plates |
Continental plates are the plates are the plates under the continents. They are made of sial, which is made of silicon and aluminium |
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Convergent boundaries |
Convergent boundaries are where two tectonic played push together. |
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Subduction |
When one convergent plate moves under another, causing mountain formations, volcanoes and earthquakes |
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Divergent boundaries |
A divergent boundary is where two plates get pushed apart, causing magma to seep out of the rift. |
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Rift |
A rift is where the boundary between divergent plates |
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Transform boundaries |
A transform boundary is where two plates slide past each other. A fault is a transform boundary |
