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20 May, 06:36

What happens to the older crust during seafloor spreading?

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  1. 20 May, 06:38
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    Oceanic crust slowly moves away from mid-ocean ridges and sites of seafloor spreading. As it moves, it becomes cooler, more dense, and more thick. Eventually, older oceanic crust encounters a tectonic boundary with continental crust. In some cases, oceanic crust encounters an active plate margin
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