Question

Explain the hypothesis, known as the “sea floor spreading” given by Hess.​(pls give me five points)

Answer 1

Answer:

Sea-floor spreading — a hypothesis, proposed in the early 1960s, that new ocean floor is created where two plates move away from one another at mid-ocean ridges. subduction zone — a long, narrow zone where one lithospheric plate descends beneath another.

Answer 2

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• Hess envisaged that oceans grew from their centres, with molten material (basalt) oozing up from the Earth's mantle along the mid ocean ridges. This created new seafloor which then spread away from the ridge in both directions.

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