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Answered

What gathers samples of sediments from above the igneous crust as a means of dating the seafloor at each site.

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Chomahae4viz

Answer:

Radioactive dating

Explanation:

Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks.