Seismic evidence indicates that rocks of the crust "float" in a molten mantle.

Name: Seismic evidence indicates that rocks of the crust "float" in a molten mantle.
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Seismic evidence actually shows that the rocks of the crust and upper mantle are solid, and the mantle behaves as a very viscous solid, not molten. The concept of "floating" refers to the principle of isostasy, not to the state of being molten.

Seismic Evidence Indicates That Rocks of the Crust "Float" in a Molten