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How does seafloor spreading hypothesis differ from Wegener's continental drift theory and theory of plate tectonics?
Yes, I remember reading about that. But what about seafloor spreading?
Seafloor spreading is a hypothesis proposed in the mid-20th century, which suggests that new oceanic crust is being formed at mid-ocean ridges and then moving away from that ridge in both directions. This contrasts with Wegener's theory because it suggests that the movement of the continents is caused by the movement of the seafloor rather than the other way around.