Sea floor spreading steps

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step 6

Gravity pulls rock towards mantle

Step 1

Magma comes out of the rift valley

step 2

Magma cools to rock and hardens

step 4

Oceanic crust and continental crust meet at the trench

step 5

Oceanic crust bends down under the continental crust

step 3

Rock is pushed away as new rock is formed at MOR

step 7

Rock melts to mantle


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