In situ determination of crystal structure and chemistry of minerals at Earth's deep lower mantle conditions

Journal Article · Mon May 01 00:00:00 EDT 2017 · Matter and Radiation at Extremes

DOI:https://doi.org/10.1016/j.mre.2017.01.002· OSTI ID:1368245

Yuan, Hongsheng; Zhang, Li

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.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• OSTI ID: 1368245
• Journal Information: Matter and Radiation at Extremes, Vol. 2, Issue 3; ISSN 2468-080X
• Publisher: Science and Technology Information Center, China Academy of Engineering Physics; Elsevier
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

58 GEOSCIENCES
X-ray diffraction
Multigrain
Lower mantle
High pressure-temperature