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PLATE BOUNDARIES . The plates are moved by the convection currents in the asthenosphere. The plates are part of the lithosphere which is what is moving into one another, away, and sliding. . Boundary Movement . Come together. separate. Slide. Divergent Boundaries . DIVIDE

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slide2

The plates are moved by the convection currents in the asthenosphere.

  • The plates are part of the lithosphere which is what is moving into one another, away, and sliding.
boundary movement
Boundary Movement

Come

together

separate

Slide

divergent boundaries
Divergent Boundaries
  • DIVIDE
  • Physical Features:
    • Ridges
    • New crust
  • Ex: Mid-Atlantic Ridge
transform boundaries
Transform Boundaries
  • They slide
  • Physical features:
    • Transform fault
  • Ex: San Andres Fault
convergent boundaries
Convergent Boundaries
  • Come together
  • Thee physical features formed depend on the type of crusts that are colliding
  • Subduction Zones-
    • Continental-Oceanic
    • Oceanic- Oceanic
  • Collisional-
    • Continental-Continental
3 types of convergent boundaries
3 types of Convergent Boundaries
  • There are 3 types
    • It depends on which kind of plate (oceanic or continental)
  • CONTINENTAL plate – CONTINENTAL plate
    • Forms folded mountains (like Mt. Everest)
  • CONTINENTAL plate – OCEANIC plate
    • The oceanic will go under the continental
    • WHY???
      • Oceanic is more dense
  • OCEANIC plate –OCEANIC plate
    • Same movement as continental – oceanic
subduction zone
Subduction Zone
  • Continental-Oceanic and Oceanic-Oceanic boundaries form subduction zones
  • Subduction Zones:
    • When the more dense plate goes under the less dense plate
  • Physical Features:
    • TRENCHES
    • Mountains/volcanoes on the less dense plate
  • Ex: Tonga Trench
slide10

Continental

Oceanic

Oceanic

Oceanic

Continental

Continental

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