The rocks athe mid-ocean ridge are nearly free of what?

The rocks athe mid-ocean ridge are nearly free of what?

  • Correct Answer: sediment
  • metals
  • minerals
  • scratches

Explanation: Scientists discovered another way to tell the approximate age of seafloor rocks. The rocks at the mid-ocean ridge crest are nearly sediment free. The crust is also very thin there. With distance from the ridge crest, the sediments and crust get thicker. This also supports the idea that the youngest rocks are on the ridge axis, and that the rocks get older with distance away from the ridge ( Figure below ). This is because the crust is new at the ridge, and so it is thin and has no sediment. The crust gets older away from the ridge crest. It has cooled and has more sediment.

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