6533b7d5fe1ef96bd12650c4
RESEARCH PRODUCT
High-pressure crystal structure investigation of synthetic Fe2SiO4 spinel.
Monika Koch-müllerFrancesco PrincivalleTonči Balić-žunićL. SeccoA. Dal NegroFilippo ParisiFabrizio Nestolasubject
Materials sciencehigh pressure; X-ray diffraction; single crystal; synthetic Fe2SiO4 spinel010504 meteorology & atmospheric scienceshigh pressure X-ray diffraction single crystal synthetic Fe2SiO4 spinelX ray diffractionSpinel550 - Earth sciencesCrystal structureengineering.material01 natural scienceshigh pressure; X ray diffraction; single crystal; synthetic Fe2SiO4 spinelX-ray diffractionCrystallographyRingwooditehigh pressureOctahedronsynthetic Fe2SiO4 spinelGeochemistry and PetrologyX-ray crystallographyengineeringTetrahedronsingle crystalSingle crystal0105 earth and related environmental sciencesSolid solutiondescription
AbstractThe crystal structure of Fe2SiO4 spinel at room temperature was investigated at seven different pressures by X-ray diffraction, using a diamond anvil cell to examine the influence of Fe substitution on ringwoodite behaviour at high pressure. The results compared with those of a pure Mg endmember show that the substitution of Fe into the spinel structure causes only small changes in the compression rate of coordination polyhedra and the distortion of the octahedron. The data show that the compression rate for the octahedron and tetrahedron in (Mg,Fe)2SiO4 can be considered statistically equal for FeO6 and MgO6, as well as for SiO4 in both the endmembers. This shows why almost identical bulk moduli are reported along the solid solution in recent literature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-10-01 |