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The sea floor is older than 200 million years. It has been recycled by plate tectonics. Very old rocks have survived.

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9y ago
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1w ago

The oldest seafloor is estimated to be around 200 million years old. New oceanic crust is continuously formed at mid-ocean ridges, so the seafloor is constantly being recycled.

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Q: What is the age of the oldest seafloor?
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