Olivine emerges from isolation

摘要: At a depth of around 410 km in the Earth's mantle, speed seismic waves rises sharply. The reason is thought to be high-pressure transformation mineral olivine wadsleyite at that depth. Seismological data have however been odds with laboratory work these minerals, which their behaviour extrapolated mantle conditions. A study showing manganese and iron can exchanged between other minerals step towards resolving discrepancies.