Energetics, equation of state, and elasticity of NAL phase: Potential host for alkali and aluminum in the lower mantle

2012 ◽  
Vol 39 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Mainak Mookherjee ◽  
Bijay B. Karki ◽  
Lars Stixrude ◽  
Carolina Lithgow-Bertelloni
Keyword(s):  
Equation Of State ◽  
Lower Mantle ◽  
Potential Host ◽  
Nal Phase

Calcium orthocarbonate, Ca2CO4-Pnma: A potential host for subducting carbon in the transition zone and lower mantle

Lithos ◽  
2020 ◽  
Vol 370-371 ◽  
pp. 105637
Author(s):  
Dinara Sagatova ◽  
Anton Shatskiy ◽  
Nursultan Sagatov ◽  
Pavel N. Gavryushkin ◽  
Konstantin D. Litasov
Keyword(s):  
Transition Zone ◽  
Lower Mantle ◽  
Potential Host

Computation for Equation of States of (Mg0.92, Fe0.08)SiO3 Perovskite Based on Mie-Grüneisen-Debye Model

2014 ◽  
Vol 1046 ◽  
pp. 76-79
Author(s):  
Xiu Fang Chen
Keyword(s):  
High Pressure ◽  
Equation Of State ◽  
Lower Mantle ◽  
Perovskite Structure ◽  
Perovskite Phase ◽  
Debye Model ◽  
Thermal Pressure ◽  
Thermal Equation ◽  
Equation Of States ◽  
Prem Model

In this paper, the thermal equation of state (EOS) of (Mg0.92, Fe0.08)SiO3is computed by Birch-Murnaghan and Mie-Grüneisen-Debye equations and the related parameters are also analyzed. The value of and has little effect on EOS of (Mg0.92, Fe0.08)SiO3perovskite. The effect of EOS of (Mg0.92, Fe0.08)SiO3perovskite is mainly from the temperature under high pressure. The temperature is higher; the deviation of EOS relative to the PREM model is bigger. The thermal EOS complies with PREM model at T=2000K. The thermal pressure of (Mg0.92, Fe0.08)SiO3perovskite a constant only related to temperature at the lower mantle conditions. At the same time, the EOS of (Mg0.92, Fe0.08)SiO3perovskite is insensitive to the data of and at T=2000K, but when and the thermal EOS is more agreement with PREM model. That is to say, when the value of the and is in the range of 253~273 GPa and 3.69~4.23, (Mg0.92, Fe0.08)SiO3is the perovskite phase, and (Mg0.92, Fe0.08)SiO3perovskite structure remains stable at the mantle conditions.

Phase relations and equation-of-state of aluminous Mg-silicate perovskite and implications for Earth's lower mantle

2004 ◽  
Vol 222 (2) ◽  
pp. 501-516 ◽  
Author(s):  
M.J. Walter ◽  
A. Kubo ◽  
T. Yoshino ◽  
J. Brodholt ◽  
K.T. Koga ◽  
...  
Keyword(s):  
Equation Of State ◽  
Lower Mantle ◽  
Phase Relations

scholarly journals Shock wave equation of state of serpentine to 150 GPa: Implications for the occurrence of water in the Earth's lower mantle

1991 ◽  
Vol 96 (B11) ◽  
pp. 18011 ◽  
Author(s):  
James A. Tyburczy ◽  
Thomas S. Duffy ◽  
Thomas J. Ahrens ◽  
Manfred A. Lange
Keyword(s):  
Shock Wave ◽  
Wave Equation ◽  
Equation Of State ◽  
Lower Mantle

scholarly journals NAL phase in K‐rich portions of the lower mantle

2013 ◽  
Vol 40 (19) ◽  
pp. 5085-5088 ◽  
Author(s):  
Chie Kato ◽  
Kei Hirose ◽  
Tetsuya Komabayashi ◽  
Haruka Ozawa ◽  
Yasuo Ohishi
Keyword(s):  
Lower Mantle ◽  
Nal Phase
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