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Plate Tectonics

Plate Tectonics. Review. The oldest rocks on the seafloor are located. Farthest away from the mid –ocean ridge. This floats on the Asthenosphere. Lithosphere or a Tectonic Plate. An Oceanic Plate subducts at a Convergence with a continental plate, because. . .

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Plate Tectonics

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  1. Plate Tectonics Review

  2. The oldest rocks on the seafloor are located • Farthest away from the mid –ocean ridge.

  3. This floats on the Asthenosphere • Lithosphere or a Tectonic Plate

  4. An Oceanic Plate subducts at a Convergence with a continental plate, because. . . • It is denser than a continental plate.

  5. Name the layers of the Earth. • Crust • Mantle • Inner Core • Outer Core

  6. Name the 4 pieces of evidence Wegner used to support Continental Drift. • Puzzle pieces • Fossil clues • Rock clues • Climate clues

  7. What 3 types of evidence do we have for seafloor spreading? • Age of rocks • Technology • Magnetic clues

  8. What Technological evidence do we have for seafloor spreading? • Magnetometer • Sonar • Glomar Challenger

  9. Tectonic plate theory is composed of these 2 theories • Wegner’s – Continental Drift • Hess’s – Seafloor spreading

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