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Thermal diffusivities of MgSiO3 and Al-bearing MgSiO3 perovskites

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Published/Copyright: January 15, 2014
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American Mineralogist
From the journal American Mineralogist Volume 99 Issue 1

Abstract

Thermal diffusivities of MgSiO3 perovskite (MgPv) and MgSiO3 perovskite containing 2 wt% Al2O3 (Al-MgPv) were measured at ambient conditions using the micro-spot heating angstrom method. The obtained values of thermal diffusivities of MgPv and Al-MgPv are 2.6 ± 0.1 and 2.4 ± 0.1 mm2/s, respectively. Present result for MgPv is much higher than previously reported value of 1.7 mm2/s. Substitution of aluminum into MgPv has little effect on its thermal diffusivity at ambient conditions, and such an impurity effect would remain insignificant at high pressures and high temperatures corresponding to the Earth’s lower mantle.

Keywords : Thermal diffusivity; thermal conductivity; MgSiO3 perovskite (MgPv); Al-bearing MgSiO3 perovskite (Al-MgPv)
Published Online: 2014-01-15
Published in Print: 2014-01-01

© 2014 by Walter de Gruyter GmbH & Co.

Articles in the same Issue

  1. Shedding light on bone material
  2. Weddellite from renal stones: Structure refinement and dependence of crystal chemical features on H2O content
  3. Erionite and offretite from the Killdeer Mountains, Dunn County, North Dakota, U.S.A.
  4. Molecular water in nominally unhydrated carbonated hydroxylapatite: The key to a better understanding of bone mineral
  5. Precipitation and dissolution of chromite by hydrothermal solutions in the Oman ophiolite: New behavior of Cr and chromite
  6. Phase transitions and equation of state of forsterite to 90 GPa from single-crystal X-ray diffraction and molecular modeling
  7. Weathering of cobalt arsenides: Natural assemblages and calculated stability relations among secondary Ca-Mg-Co arsenates and carbonates
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  9. Cathodoluminescence of alkali feldspars and radiation effects on the luminescent properties
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  11. Thermal equation of state and spin transition of magnesiosiderite at high pressure and temperature
  12. Thermal diffusivities of MgSiO3 and Al-bearing MgSiO3 perovskites
  13. The sound velocity measurements of Fe3S
  14. PDF analysis of ferrihydrite: Critical assessment of the under-constrained akdalaite model
  15. Aluminum ion occupancy in the structure of synthetic saponites: Effect on crystallinity
  16. DFT investigation of structural and vibrational properties of type B and mixed A-B carbonated hydroxylapatite
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  19. Measurement of water contents in olivine using Raman spectroscopy
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  25. Monipite, MoNiP, a new phosphide mineral in a Ca-Al-rich inclusion from the Allende meteorite
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  27. Vanadio-oxy-dravite, NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup
  28. XAS evidence for Ni sequestration by siderite in a lateritic Ni-deposit from New Caledonia
  29. Vladykinite, Na3Sr4(Fe2+Fe3+)Si8O24: A new complex sheet silicate from peralkaline rocks of the Murun complex, eastern Siberia, Russia
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https://doi.org/10.2138/am.2014.4598
Keywords for this article
Thermal diffusivity; thermal conductivity; MgSiO3 perovskite (MgPv); Al-bearing MgSiO3 perovskite (Al-MgPv)

Articles in the same Issue

  1. Shedding light on bone material
  2. Weddellite from renal stones: Structure refinement and dependence of crystal chemical features on H2O content
  3. Erionite and offretite from the Killdeer Mountains, Dunn County, North Dakota, U.S.A.
  4. Molecular water in nominally unhydrated carbonated hydroxylapatite: The key to a better understanding of bone mineral
  5. Precipitation and dissolution of chromite by hydrothermal solutions in the Oman ophiolite: New behavior of Cr and chromite
  6. Phase transitions and equation of state of forsterite to 90 GPa from single-crystal X-ray diffraction and molecular modeling
  7. Weathering of cobalt arsenides: Natural assemblages and calculated stability relations among secondary Ca-Mg-Co arsenates and carbonates
  8. Alburnite, Ag8GeTe2S4, a new mineral species from the Roşia Montana Au-Ag epithermal deposit, Apuseni Mountains, Romania
  9. Cathodoluminescence of alkali feldspars and radiation effects on the luminescent properties
  10. Thermochemistry of the alkali feldspars: Calorimetric study of the entropy relations in the low albite–low microcline series
  11. Thermal equation of state and spin transition of magnesiosiderite at high pressure and temperature
  12. Thermal diffusivities of MgSiO3 and Al-bearing MgSiO3 perovskites
  13. The sound velocity measurements of Fe3S
  14. PDF analysis of ferrihydrite: Critical assessment of the under-constrained akdalaite model
  15. Aluminum ion occupancy in the structure of synthetic saponites: Effect on crystallinity
  16. DFT investigation of structural and vibrational properties of type B and mixed A-B carbonated hydroxylapatite
  17. Chlorite topography and dissolution of the interlayer studied with atomic force microscopy
  18. The effect of XPS background removing method on the appraisal of Ti and Fe: The case of phlogopites and brookite
  19. Measurement of water contents in olivine using Raman spectroscopy
  20. Perbøeite-(Ce) and alnaperbøeite-(Ce), two new members of the epidote-törnebohmite polysomatic series: Chemistry, structure, dehydrogenation, and clue for a sodian epidote end-member
  21. Crystal structure and compressibility of lead dioxide up to 140 GPa
  22. A comparative analysis of the mechanical behavior of carbon dioxide and methane hydrate-bearing sediments
  23. Crystal structures and stabilities of cristobalite-helium phases at high pressures
  24. X-ray absorption characterization of Cr in forsterite within the MacAlpine Hills 88136 EL3 chondritic meteorite
  25. Monipite, MoNiP, a new phosphide mineral in a Ca-Al-rich inclusion from the Allende meteorite
  26. Compositional zoning in dolomite from lawsonite-bearing eclogite (SW Tianshan, China): Evidence for prograde metamorphism during subduction of oceanic crust
  27. Vanadio-oxy-dravite, NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup
  28. XAS evidence for Ni sequestration by siderite in a lateritic Ni-deposit from New Caledonia
  29. Vladykinite, Na3Sr4(Fe2+Fe3+)Si8O24: A new complex sheet silicate from peralkaline rocks of the Murun complex, eastern Siberia, Russia
  30. New Mineral Names
  31. Memorial of James Burleigh Thompson, Jr., 1921–2011
  32. Book review: MANTLE CONVECTION FOR GEOLOGISTS by Geoffrey F. Davies
  33. Errata
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