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14 Cards in this Set
- Front
- Back
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7-3
1. plate tectonics |
The theory that explains how large pieces of the Earth's outermost layer, called tectonic plates, move and change shape
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2. convergent boundary |
the boundary formed by the collision of 2 lithosperic plates
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3. divergent boundary |
the boundary between two tectonic plates that are moving away from each other
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4. transform boundary |
the boundary between tectonic plates that are sliding past each other horizontally
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5. ridge push |
At mid-ocean ridges, the oceanic lithosphere is higher than it is where it sinks into the asthenosphere
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6. slab pull |
when the side of the tectonic plates that contains the oceanic lithospere sinks and pulls the rest of the tectonic plates with it
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7. convection |
hot rock from deep beneath the Earth rises, but cooler rock near the surface sinks
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8. subduction zone |
when old ocean crust gets pushed into the asthenosphere where it is remelted and recycled
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9. What occurs at a convergent boundary between two continental plates? |
Continental-continental collisions
when two continental plates with continental crust collide, they buckle and thicken, which pushes the crust upward |
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10. What occurs at a convergent boundary between two oceanic plates? |
Oceanic-oceanic collisions
when two tectonic plates with oceanic lithosphere collide, one of the plates with oceanic lithosphere is subducted or sinks, under the other plate |
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11. What occurs at a convergent boundary between an oceanic plate and a continental plate? |
When a plate with oceanic crust and a plate collide since oceanic crust is denser it sinks
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12. What occurs at transform boundaries? |
a mid-ocean ridge forms
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13. What occurs at a divergent boundary between two oceanic plates? |
new sea floor forms
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14. Name an example of where you can go in the United States and see a transform boundary. |
San Andreas fault
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