elastic nstants of mantle minerals at high temperature

elastic nstants of mantle minerals at high temperature

  • Elastic Constants of Mantle Minerals at High Temperature ...

    Elastic Constants of Mantle Minerals at High Temperature Orson L. Anderson Center for Chemistry and Physics of Earth and Planets, Institute of Geophysics and

  • Cited by: 293
  • Elastic Constants of Mantle Minerals at High Temperature ...

    A simple theoretical model is developed to investigate the temperature dependence of elastic constants. The method is based on a new expression for the temperature dependence of the bulk modulus and the formulation derived from Tallon’s model. The proposed relationship is applied to study the elastic constants of the solids of significance to geophysics applications.

  • 作者: Liu, Quan
  • Elastic Constants of Mantle Minerals at High Temperature ...

    Jul 29, 2008  A simple theoretical model is developed to investigate the temperature dependence of elastic constants. The method is based on a new expression for the temperature dependence of the bulk modulus and the formulation derived from Tallon’s model. ... Liu, Q., He, Q. Elastic Constants of Mantle Minerals at High Temperature. Int J Thermophys 29 ...

  • Cited by: 1
  • Elastic Constants of Mantle Minerals at High Temperature

    Download Citation Elastic Constants of Mantle Minerals at High Temperature A simple theoretical model is developed to investigate the temperature dependence of elastic constants. The method is ...

  • The Elastic Constants of Monoclinic Diopside at High ...

    Dec 01, 2003  Knowledge of the elastic properties of all candidate mantle minerals and how these properties vary with temperature and pressure is required to accurately describe the composition and structure of Earth's upper and lower mantle. It is generally believed that the four dominant minerals of Earth's upper mantle are olivine, orthopyroxene, clinopyroxene, and pyrope garnet, even though

  • Author: D. G. Isaak, I. Ohno, P. Lee
  • High-temperature elastic constant data on minerals ...

    The high-temperature measurements of elastic constants and related temperature derivatives of nine minerals of interest to geophysical and geochemical theories of the Earth's interior are reviewed and discussed. A number of correlations between these parameters, which have application to geophysical problems, are also presented. Of especial interest is α, the volume coefficient of thermal ...

  • Single-crystal elasticity of the deep-mantle magnesite at ...

    High-temperature BLS experiments were performed at 13BMD of the GSECARS Sector, Advanced Photon Source (APS), Argonne ... elastic constants of magnesite at high. P. and high. T (Tables S1 ... Carbon storage at defect sites in mantle mineral ana-logues. Nat.Geosci. 6,875–878. Wu, Z., Justo, J.F., Wentzcovitch, R.M., 2013. Elastic anomalies in ...

  • Composition of the upper mantle: Geophysical tests of two ...

    The elastic properties of candidate mantle phases are used to test the viability of olivine‐rich (pyrolitic) and CaO + Al 2 O 3 ‐rich (eclogitic) assemblages for the mantle. High temperature adiabats for each phase of interest are constructed and compared to mantle seismic properties.

  • Internally consistent elasticity measurements of mantle ...

    Elasticity is a material property that reflects the atomic structure and interatomic forces in crystalline materials. As a result, elastic properties are strongly affected by changes in pressure and temperature. In Earth Sciences, knowledge of the elastic behavior of geomaterials at pressure and temperature conditions of the Earth's interior is key to constrain our planet's inner structure and ...

  • Single-crystal elasticity of the deep-mantle magnesite at ...

    Magnesite (MgCO 3) is considered to be a major candidate carbon host in the Earth's mantle, and has been found to exist as an accessory mineral in carbonated peridotite and eclogite.Studying the thermal elastic properties of magnesite under relevant pressure–temperature conditions of the upper mantle is thus important for our understanding of the deep-carbon storage in the Earth's interior.

  • Temperature and pressure derivatives of elastic constants ...

    The temperature and pressure derivatives of the elastic moduli M of solids can be cast into the form of dimensionless logarithmic anharmonic {DLA} parameters, ∂ ln M /∂ In p = {M } at constant temperature, pressure, or entropy (T , P , S ), where p is the density. These parameters show little variation from material to material and are expected to show little variation with temperature at ...

  • Elastic Properties of Minerals SpringerLink

    Anderson OL, Goto T (1989) Measurements of elastic constants of mantle-related minerals at temperatures up to 1800 K. Phys Earth Planet Int 55: 241–253 CrossRef Google Scholar Bass JD (1986) Elasticity of uvarovite and andradite garnets.

  • Refractive index and elastic properties of MgO up to 1900 ...

    The refractive index shows a monotonic increase with temperature. Our elastic constant measurements slightly extend the temperature range previously covered in ultrasonic and resonance experiments; although overall agreement is good, small differences exist between the different determinations. ... Elastic Constants of Mantle Minerals at High ...

  • High-temperature elastic softening of orthopyroxene and ...

    High-temperature shear velocities in San Carlos orthopyroxene (SC OPx; red circles) are compared with those of nearly pure MgSiO 3 OEn (black circles) from Zabargad (Jackson et al. 2004a,b).Data were fitted to eq. (1).Fits with free n yields n= 15.8(5) with T C = 1487(11) K, and n= 16.9(25) with T C = 1430(63) K, for OEn and SC OPx, respectively. Fit parameters are poorly constrained for SC ...

  • The elastic constants of MgSiO 3 perovskite at pressures ...

    The temperature anomalies in the Earth's mantle associated with thermal convection1 can be inferred from seismic tomography, provided that the elastic properties of mantle minerals are known as a ...

  • High-temperature elastic constant data on minerals ...

    The high-temperature measurements of elastic constants and related temperature derivatives of nine minerals of interest to geophysical and geochemical theories of the Earth's interior are reviewed and discussed. A number of correlations between these parameters, which have application to geophysical problems, are also presented. Of especial interest is α, the volume coefficient of thermal ...

  • Elasticity of single-crystal olivine at high pressures and ...

    Although most of the elastic moduli increase with increasing pressure at given high temperatures, three moduli, C 11, C 12 and C 13 exhibit stronger temperature-induced reduction at greater pressures, showing the importance of the combined effects of high P–T on the elasticity of mantle minerals. The elasticity of single-crystal olivine at ...

  • First principles quasiharmonic thermoelasticity of mantle ...

    This correction is very satisfactory for obtaining the aggregate elastic constants and velocities of these minerals at in situ conditions of the lower mantle. This procedure can also be used to predict elastic constants in the presence of deviatoric stresses, or to correct elasticity measurements performed under non-hydrostatic conditions, as ...

  • Single-crystal elasticity of the deep-mantle magnesite at ...

    High-temperature BLS experiments were performed at 13BMD of the GSECARS Sector, Advanced Photon Source (APS), Argonne ... elastic constants of magnesite at high. P. and high. T (Tables S1 ... Carbon storage at defect sites in mantle mineral ana-logues. Nat.Geosci. 6,875–878. Wu, Z., Justo, J.F., Wentzcovitch, R.M., 2013. Elastic anomalies in ...

  • NSF Award Search: Award#1847707 - CAREER: Upper mantle ...

    The PI will perform experiments in the diamond-anvil cell at the high pressures and temperatures prevailing in the mantle. Single-crystal Brillouin spectroscopy at PI's laser spectroscopy laboratory and a national synchrotron facility, the Advance Photon Source (IL), will allow measuring the elastic constants of hydrogen-bearing olivine and ...

  • Theoretical Prediction of Debye Temperature for Mantle ...

    The thermo elastic properties of minerals at high temperature (T) and pressure (P) provides an opportunity for understanding the characteristic behavior of deep Earth's interior [2] [3]. The ...

  • Elasticity of mantle phases at high pressure and temperature

    Request PDF Elasticity of mantle phases at high pressure and temperature We review theoretical approaches and results in the study of the elasticity of mantle materials under extreme conditions.

  • (PDF) Thermoelastic properties of minerals at high temperature

    In our present study, we have investigated the thermophysical properties of two minerals (pyrope-rich garnet and MgAl2O4) under high temperatures and calculated the second-order elastic constant ...

  • Single crystal elasticity of natural topaz at high ...

    Jan 22, 2018  We also explored the temperature dependence of the full elastic constant tensor. We find that among the various minerals stable in the Al2O3

  • NSF Award Search: Award#1847707 - CAREER: Upper mantle ...

    The PI will perform experiments in the diamond-anvil cell at the high pressures and temperatures prevailing in the mantle. Single-crystal Brillouin spectroscopy at PI's laser spectroscopy laboratory and a national synchrotron facility, the Advance Photon Source (IL), will allow measuring the elastic constants of hydrogen-bearing olivine and ...

  • Theoretical Prediction of Debye Temperature for Mantle ...

    The thermo elastic properties of minerals at high temperature (T) and pressure (P) provides an opportunity for understanding the characteristic behavior of deep Earth's interior [2] [3]. The ...

  • Elasticity of mantle phases at high pressure and temperature

    Request PDF Elasticity of mantle phases at high pressure and temperature We review theoretical approaches and results in the study of the elasticity of mantle materials under extreme conditions.

  • (PDF) Thermoelastic properties of minerals at high temperature

    In our present study, we have investigated the thermophysical properties of two minerals (pyrope-rich garnet and MgAl2O4) under high temperatures and calculated the second-order elastic constant ...

  • Single crystal elasticity of natural topaz at high ...

    Jan 22, 2018  We also explored the temperature dependence of the full elastic constant tensor. We find that among the various minerals stable in the Al2O3

  • High‐Temperature Elastic Properties of Polycrystalline MgO ...

    Orson L. Anderson, Takayasu Goto, Measurement of elastic constants of mantle-related minerals at temperatures up to 1800 K, Physics of the Earth and Planetary Interiors, 10.1016/0031-9201(89)90072-1, 55, 3-4, (241-253), (1989).

  • Mineral Physics Crystallography AGU Reference Shelf

    Published by the American Geophysical Union as part of the Mineral Physics Crystallography Series, Volume 2. The purpose of this Handbook is to provide, in highly accessible form, selected critical data for professional and student solid Earth and planetary geophysicists.

  • THEORETICAL PREDICTION OF DEBYE TEMPERATURE FOR MANTLE ...

    The temperature dependence of elastic properties such as shear modulus, seismic velocities and Debye temperatures has been measured using Hill's averaging method and other thermodynamic methods for five silicate mantle minerals viz. MgAl 2 O 4, Mg 2 SiO 4, Fe 2 SiO 4, Mn 2 SiO 4, and Co 2 SiO 4. The results are found to be in good agreement ...

  • Temperature and Pressure Derivatives of Elastic Constants ...

    temperature and pressure derivatives of ionic crystals depend on the nature of the ions and their coordination. INTRODUCTION Some information is now available on the elastic constants of most of the minerals, including high-pressure phases, which are important in the mantle. What is lacking for the high­

  • Determination of elastic constants of single-crystal ...

    Jul 19, 2017  We determined elastic constants of a single-crystal chromian spinel at temperatures from −15 to 45 °C through the Rectangular Parallelepiped Resonance method. The sample is a natural chromian spinel, which was separated from a mantle xenolith. Elastic constants at an ambient temperature (T = 24.0 °C) are C 11 = 264.8(1.7) GPa, C 12 = 154.5(1.8) GPa and C 44 = 142.6(0.3)

  • Bibliography Abramson, E.H., J.M. Brown ... - Mineral Physics

    Anderson, O.L., and D.G. Isaak, Elastic constants of mantle minerals at high temperature. In: Mineral Physics and Crystallography: A Handbook of Physical Constants, ... Fei, Y., Solid solutions and elemental partitioning at high pressures and temperatures, in Ultrahigh-Pressure Mineralogy: ...

  • Sound velocities and elastic constants of iron-bearing ...

    The single-crystal elastic constants of Fo 91 nominally anhydrous ringwoodite were measured to 16 GPa at room temperature, and to 923 K at room pressure by Sinogeikin et al. (2001). The resulting zero-pressure aggregate moduli are: K 0S =188±3 GPa, G 0 =120±2 GPa, with pressure derivatives 4.1±0.3 and 1.3±0.2 for the bulk and shear moduli ...

  • Elasticity and solid-state geophysics

    or temperature from mantle tomography and a table of elastic constants derived from laboratory experiments. Seismic velocities are not unique functions of temperature and pressure alone nor are they linear functions of them. Tomographic cross-sections are not maps of temperature. The mantle is not an ideal linearly elastic body or 'an ideal ...

  • Simultaneous high-pressure high-temperature elastic ...

    A new high-pressure cell has also been introduced for precise measurement of the length of the tiny sample by X-ray radiography imaging under very high pressure and temperature. The new system was tested by measuring elastic velocities of α-Al 2 O 3 over wide pressure