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Letters. Equation of state of Al-bearing stishovite to 40 GPa at 300 K

  • Shigeaki Ono EMAIL logo , Takuma Suto , Kei Hirose , Yasuhiro Kuwayama , Tetsuya Komabayashi and Takumi Kikegawa
Published/Copyright: March 28, 2015
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American Mineralogist
From the journal American Mineralogist Volume 87 Issue 10

Abstract

The compression behavior of Al-bearing stishovite was investigated by powder X-ray diffraction up to 40 GPa with the BL13A beamline at the Photon Factory (KEK, Japan). A reliable equation of state for stishovite was obtained using a diamond anvil cell coupled with a yttrium-aluminum-garnet (YAG) laser-heating. A sample containing 2.1 wt% Al2O3 was heated using a YAG laser at each pressure increment to relax deviatoric stress. X-ray diffraction measurements were carried out at 300 K using the angle-dispersive technique. A least squares refinement of the data yielded equation of state parameters where the bulk modulus Ko = 282 (±2) GPa when the first pressure derivative of the bulk modulus Ko' was fixed at 4. The effect of Al is to decrease slightly the bulk modulus of stishovite and increase the density of the subducted oceanic crust. The enhanced compressibility of Al-bearing stishovite certainly has geophysical and geochemical implications for the fate of the subducted slab, as this mineral is the main constituent of subducted mid-oceanic ridge basalt (MORB) in the Earth’s mantle.

Received: 2002-3-11
Accepted: 2002-5-13
Published Online: 2015-3-28
Published in Print: 2002-10-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Atomic-scale observations of franckeite surface morphology
  2. Surface control vs. diffusion control during calcite dissolution: Dependence of step-edge velocity upon solution pH
  3. First-principles calculation of the infrared spectrum of lizardite
  4. Hard-mode infrared spectroscopy of perovskites across the CaTiO3-SrTiO3 solid solution
  5. Spectroscopic studies of spessartine from Brazilian pegmatites
  6. Order/disorder in natrolite group zeolites: A 29Si and 27Al MAS NMR study
  7. Evolution of local electronic structure in alabandite and niningerite solid solutions [(Mn,Fe)S, (Mg,Mn)S, (Mg,Fe)S] using sulfur K- and L-edge XANES spectroscopy
  8. Electron paramagnetic resonance spectroscopic study of synthetic fluorapatite: Part III. Structural characterization of sub-ppm-level Gd and Mn in minerals at W-band frequency
  9. Experimental determination of the equilibria: rutile + magnesite = geikielite + CO2 and zircon + 2 magnesite = baddeleyite + forsterite + 2 CO2
  10. Symplectites derived from metastable phases in martian basaltic meteorites
  11. Copper speciation in vapor-phase fluid inclusions from the Mole Granite, Australia
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  14. Thermal stability and spectroscopic studies of zemkorite: A carbonate from the Venkatampalle kimberlite of southern India
  15. Temperatures from triple-junction angles in sulfides
  16. Experimental determination of calcite solubility in H2O-NaCl solutions at deep crust/ upper mantle pressures and temperatures: Implications for metasomatic processes in shear zones
  17. Compressibility of stottite, FeGe(OH)6: An octahedral framework with protonated O atoms
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  23. The structure of Mn-rich tuperssuatsiaite: A palygorskite-related mineral
  24. Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al3+,Si4+)4O10(OH)2, where M = Ni2+, Mg2+, Co2+, Fe2+, or Al3+
  25. SIMS matrix effects in the analysis of light elements in silicate minerals: Comparison with SREF and EMPA data
  26. Letters. Equation of state of Al-bearing stishovite to 40 GPa at 300 K
  27. Order parameter behavior at the structural phase transition in cummingtonite from Mössbauer spectroscopy
  28. Deciphering Ni sequestration in soil ferromanganese nodules by combining X-ray fluorescence, absorption, and diffraction at micrometer scales of resolution
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https://doi.org/10.2138/am-2002-1026

Articles in the same Issue

  1. Atomic-scale observations of franckeite surface morphology
  2. Surface control vs. diffusion control during calcite dissolution: Dependence of step-edge velocity upon solution pH
  3. First-principles calculation of the infrared spectrum of lizardite
  4. Hard-mode infrared spectroscopy of perovskites across the CaTiO3-SrTiO3 solid solution
  5. Spectroscopic studies of spessartine from Brazilian pegmatites
  6. Order/disorder in natrolite group zeolites: A 29Si and 27Al MAS NMR study
  7. Evolution of local electronic structure in alabandite and niningerite solid solutions [(Mn,Fe)S, (Mg,Mn)S, (Mg,Fe)S] using sulfur K- and L-edge XANES spectroscopy
  8. Electron paramagnetic resonance spectroscopic study of synthetic fluorapatite: Part III. Structural characterization of sub-ppm-level Gd and Mn in minerals at W-band frequency
  9. Experimental determination of the equilibria: rutile + magnesite = geikielite + CO2 and zircon + 2 magnesite = baddeleyite + forsterite + 2 CO2
  10. Symplectites derived from metastable phases in martian basaltic meteorites
  11. Copper speciation in vapor-phase fluid inclusions from the Mole Granite, Australia
  12. Trace-element partitioning between vacancy-rich eclogitic clinopyroxene and silicate melt
  13. Fluorite particles inducing butterfly aggregates of incipient microperthite in alkali feldspar from a syenite, the Patagonian Andes, southern Chile
  14. Thermal stability and spectroscopic studies of zemkorite: A carbonate from the Venkatampalle kimberlite of southern India
  15. Temperatures from triple-junction angles in sulfides
  16. Experimental determination of calcite solubility in H2O-NaCl solutions at deep crust/ upper mantle pressures and temperatures: Implications for metasomatic processes in shear zones
  17. Compressibility of stottite, FeGe(OH)6: An octahedral framework with protonated O atoms
  18. High-pressure behavior of bikitaite: An integrated theoretical and experimental approach
  19. Raman spectroscopic study of H2O in bikitaite: “One-dimensional ice”
  20. Hydrogen, lithium, and boron in mantle-derived olivine: The role of coupled substitutions
  21. Crystal chemistry of three tourmalines by SREF, EMPA, and SIMS
  22. Revised structure models for antigorite: An HRTEM study
  23. The structure of Mn-rich tuperssuatsiaite: A palygorskite-related mineral
  24. Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al3+,Si4+)4O10(OH)2, where M = Ni2+, Mg2+, Co2+, Fe2+, or Al3+
  25. SIMS matrix effects in the analysis of light elements in silicate minerals: Comparison with SREF and EMPA data
  26. Letters. Equation of state of Al-bearing stishovite to 40 GPa at 300 K
  27. Order parameter behavior at the structural phase transition in cummingtonite from Mössbauer spectroscopy
  28. Deciphering Ni sequestration in soil ferromanganese nodules by combining X-ray fluorescence, absorption, and diffraction at micrometer scales of resolution
  29. Use of the spindle stage for orientation of single crystals for microXAS: Isotropy and anisotropy in Fe-XANES spectra
  30. A technique for mounting and polishing melt inclusions in small (<1 mm) crystals
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