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Earths Crust

Asked Oct 15, 2004, 08:21 PM — 1 Answer
Can anyone tell me the thickness, in miles, of the earths crust, and scale for scale, how thick would that leave the shell of a table tennis ball?
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urmod4u Posts: 248, Reputation: 15
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Nov 11, 2004, 08:31 AM
The oceanic crust avarages to 5 km.
The continental crust avarages to 30-35 km, with a maximum of 100 km (Himalaya).
Earth's radius is 6367 Km.
The thickness of the layer on a table-tennis ball would then be 0.03 mm avarage for the oceanic crust and 0.2 mm avarage for the continental crust.
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