Research NewsGeophysics

20,000 Leagues Under the Earth

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Science  31 Jan 1997:
Vol. 275, Issue 5300, pp. 614
DOI: 10.1126/science.275.5300.614

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At the bottom of Earth's mantle lies a strange realm, where “continents” may fall from above, fiery bogs stew above the molten core, and whole chunks of landscape can loft upward like so many hot-air balloons.