What is the first step of seafloor spreading?

A crack forms in oceanic crust

Molten rock rises up through oceanic crust.

Molten rock solidifies at the center of the ridge.

New material pushes older rock away from the ridge.

Mid-Ocean Ridge. New crust forms when molten material from the asthenosphere erupts onto the ocean floor through a crack in Earth's crust. The magma solidifies in the valley formed by the crack in the crust and forms a strip of solid rock. This is called the mid-ocean ridge.

Explanation:

What is the first step of seafloor spreading?

Why does rock get older as you move away from a mid ocean ridge?

What is the first step of seafloor spreading a crack forms in oceanic crust?

What happens to the rock along the ridge when new molten material erupts?

A) A crack forms in oceanic crust

Explanation:

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