Giant Diamonds Might Hold the Key to Superdeep Earthquakes
According to most geophysical models, earthquakes should not happen more than 300 kilometers beneath Earth's surface. However, they commonly do, an event that has confounded seismologists for years. Imperfections such as the inclusions (dark flecks) in this diamond reveal that tectonic slabs can carry water deep into Earth's mantle. EVAN SMITH/© 2021 GIA Researchers suggest...