How wide would an ocean basin be if it formed due to the breakup of a supercontinent 200 million years ago and had an oceanic ridge in the middle that spread at a rate of 2.5 centimeters per year (25 kilometers per million years)?
What will be an ideal response?
Answer: 200 Ma × (25 km/Ma = 5000 km. The ocean basin would be about 5000 kilometers wide.
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