How did scientists discover the age of the rocks on the ocean floor? Which are older? Younger?
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Scientists can determine the age of the seafloor thanks to the changing magnetic field of our planet. As rocks crystallize from lava at the ridges, they literally record the magnetic field of the Earth at the time of their creation.
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Scientists can determine the age of the seafloor thanks to the changing magnetic field of our planet. As rocks crystallize from lava at the ridges, they literally record the magnetic field of the Earth at the time of their creation.
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