Matter and Radiation at Extremes, 2017, 2 (3): 117, Published Online: Jan. 17, 2018
In situ determination of crystal structure and chemistry of minerals at Earth's deep lower mantle conditions
X-ray diffraction X-ray diffraction Multigrain Multigrain Lower mantle Lower mantle High pressure-temperature High pressure-temperature
Abstract
Recent advances in experimental techniques and data processing allow in situ determination of mineral crystal structure and chemistry up to Mbar pressures in a laser-heated diamond anvil cell (DAC), providing the fundamental information of the mineralogical constitution of our Earth's interior. this work highlights several recent breakthroughs in the field of high-pressure mineral crystallography, including the stability of bridgmanite, the single-crystal structure studies of post-perovskite and H-phase as well as the identification of hydrous minerals and iron oxides in the deep lower mantle. the future development of high-pressure crystallography is also discussed.
Hongsheng Yuan, Li Zhang. In situ determination of crystal structure and chemistry of minerals at Earth's deep lower mantle conditions[J]. Matter and Radiation at Extremes, 2017, 2(3): 117.
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