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Nature Geoscience 2, 10–11 (1 January 2009) | doi:10.1038/ngeo398

Geophysics: Going with the mantle flow

Maureen D. Long

Below the Earth's crust, the solid mantle moves in a slow and unseen dance, as cold slabs sink, hot upwellings rise, and convection slowly rids the Earth's interior of its primordial heat. Much of our knowledge of mantle flow patterns is indirect, inferred from geodynamical models or seismic tomography images.