Under Pressure: High-stress tests show surprising change in a mantle mineral's behavior | Science News

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Under Pressure: High-stress tests show surprising change in a mantle mineral's behavior

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11:16am, July 20, 2005

Some people toughen under increased pressure. Some rocks do too. Squeezing a common, iron-bearing mineral at the hellish pressures deep within our planet makes the material much stiffer than geophysicists had expected. This response may explain why seismic waves travel particularly fast through some deep zones of rock, say the researchers who performed the experiment.

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