Increased compressibility of pseudobrookite-type MgTi2O5 caused by cation disorder

Science

Volumn 277, Issue 5334, 1997, Pages 1965-1967

  Hazen, Robert M ^a   Yang, Hexiong ^a  

^a GEOPHYSICAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CATION DISORDER; COMPRESSIBILITY; MAGNESIUM TITANATE; MANTLE MINERAL; PSEUDOBROOKITE; SILICATE;

ARTICLE; CHEMICAL ANALYSIS; COMPRESSION; CRYSTAL; ELASTICITY; PRESSURE; PRIORITY JOURNAL; X RAY DIFFRACTION;

EID: 0030828992     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.277.5334.1965     Document Type: Article

References (29)

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22. Unit-cell parameters and x-ray diffraction intensity data for four crystals were determined at 0.0, 1.03, 2.16, 3.22, 4.34, 6.20, and 7.51 GPa. Unit-cell parameters only were determined at 0.49, 1.68, 2.56, 3.84, 5.12, and 6.95 GPa.
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29. We thank N. Boctor for help in preparation of the samples and C. T. Prewitt and D. Teter for useful discussions and constructive reviews. Crystal chemistry research at the Geophysical Laboratory was supported by NSF grant EAR9218845 and by the Carnegie Institution of Washington. High-pressure studies were supported in part by the NSF Center for High Pressure Research.