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Plate Tectonics

Plate Tectonics. By: Davon and Whitney. Vocabulary. Crust Mantle Core Lithosphere Asthenosphere Mesosphere Outer core Inner core Tectonic plate Continental drift Sea-floor spreading Convergent boundary Subuction zone Divergent boundary Transform boundary Stress Compression

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Plate Tectonics

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  1. Plate Tectonics By: Davon and Whitney

  2. Vocabulary • Crust • Mantle • Core • Lithosphere • Asthenosphere • Mesosphere • Outer core • Inner core • Tectonic plate • Continental drift • Sea-floor spreading • Convergent boundary • Subuction zone • Divergent boundary • Transform boundary • Stress • Compression • Tension • Folding • Fault • Normal fault • Reverse fault • Strike-slip fault

  3. Vocabulary • Sea-floor spreading • Convergent boundary • Seduction zone • Divergent boundary • Transform boundary • Stress • Compression • Tension • Folding • Fault • Normal fault • Reverse fault • Strike-slip fault

  4. Tectonic Plate Boundaries

  5. Sea floor Sea-floor spreading creates new oceanic lithosphere at mid-ocean ridges.

  6. Pangaea

  7. Structure of the earth

  8. Vocabulary Review • Asthenosphere- the soft layer of the mantle on which pieces of the lithosphere move • Plate tectonics- the theory that the earths lithosphere is divided into tectonic plates that move around on top of the asthensphee • Folding-the bending of rock layers due to stress in the earths crust • Convergent boundary-the boundary between two colliding tectonic plates

  9. Vocabulary Review • Sea-floor spreading- the process by which new oceanic lithosphere is created at mid-ocean ridges as older materials are pulled away from the ridge. • Crust- the thin, outermost layer of the earth, or the uppermost part of the lithosphere. • Seduction zone-the region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, usually between continental and oceanic plate

  10. Vocabulary Review • Stress- the amount of force per unit area that is put on a given material. • Tension- the type of stress that occurs when forces act to stretch an object. • Reverse fault- a fault in which the hanging wall moves up relative to the footwall.

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