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Seafloor Spreading

Seafloor Spreading. The plates pull apart and new crust is formed when magma goes to the surface and cools. Seafloor spreading shows evidence of polarity reversing. The older parts of crust are pushed into subduction zones causing earthquakes and mountains to push up.

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Seafloor Spreading

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  1. Seafloor Spreading

  2. The plates pull apart and new crust is formed when magma goes to the surface and cools

  3. Seafloor spreading shows evidence of polarity reversing

  4. The older parts of crust are pushed into subduction zones causing earthquakes and mountains to push up

  5. The older chunks of plate melt in the mantle after getting pushed into it.

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