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22 votes
How can scientists learn about the mantle if they cannot study it directly?

User Noel Widmer
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1 Answer

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11 votes
So by looking at the seismic waves from earthquakes the scientist learned about the crust and the mantle but they also learned about the outer and inner core. To do this you have to look at a different kind of waves, the S (secondary waves) waves that also get released by an earthquake.
User Gavin Portwood
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