Mechanism of Plate Movement

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Across
  1. 4. occurs between two colliding plates, one subducting underneath the other, whereby convection currents in. the upper mantle suck both plates open
  2. 5. act against the driving forces of plate tectonics.
  3. 7. force resists movement of lithospheric plates.
  4. 8. occurs when a heavy plate is pulled into the mantle but resists subduction because of friction.
  5. 9. occurs when the lithosphere is pushed up by the asthenosphere because of convection currents from the mantle.
Down
  1. 1. is the force that resists all the forces associated with plate movement in subduction zone.
  2. 2. caused by the rising of heat from the core toward the mantle.
  3. 3. is the frictional force due to the opposing movement of plates moving past one another between two spreading centers.
  4. 6. takes place when a subducting slab sinks into the hot mantle because of a difference in temperature.