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Why is the oldest seafloor less than 180 million years when the oldest continental crust is about 4 billion years old?
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Why is the oldest seafloor less than 180 million years when the oldest continental crust is about 4 billion years old?

User Sean Woods
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Answer: It is because of subduction, oceanic crust tends to get colder and denser with age as it spreads from the mid-ocean ridges!

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User Asfand Qazi
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It is because of subduction, oceanic crust tends to get colder and denser with age as it spreads from the mid-ocean ridges.

User Sebastian Zaha
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