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Plate Tectonics
Term | Definition |
---|---|
Lithosphere | The crust and the top layer of the mantle. |
Convection | The heating and cooling of magma in the mantle. |
Asthenosphere | The upper portion of the mantle where convection currents happen. |
Plate Tectonics | The theory that the continents are split into plates that are moving due to fossils, glacial evidence, land forms, etc. |
Pangaea | The supercontinent that Wegener named. |
Plate Boundaries | Where plates contact each other. |
Continental Plates Converging | This boundary creates mountains. Ex: The Himalayas |
Continental Plates Diverging | This boundary creates rifts. Ex: East African Rift |
Oceanic Plates Converging | This boundary creates islands. Ex: Japan |
Oceanic Plates Diverging | This boundary creates oceanic ridges. Ex: Mid-Atlantic Ridge |
Oceanic-Continental Plates Converging | This boundary creates volcanic mountains. Ex: The Andes |
Transform Plates | This boundary creates fault lines. Ex: The San Andreas Fault |