Elasticity and solid-state geophysics - New Theory of the Earth - page 236

K s G

Formula Density K s G − −

(structure) (g / cm 3 ) ( GPa ) (GPa) K s G (GPa / K) (GPa / K)

(Mg , Fe) 2 SiO 4 3 . 222 + 129 82 − 5 . 1 1 . 8 0 . 016 0 . 013

(olivine) 1 . 182 x Fe 31 x Fe

(Mg , Fe) 2 SiO 4 3 . 472 + 174 114 − 4 . 9 1 . 8 0 . 018 0 . 014

( β -spinel) 1 . 24 x Fe 41 x Fe

(Mg , Fe) 2 SiO 4 3 . 548 + 184 119 − 4 . 8 1 . 8 0 . 017 0 . 014

( γ -spinel) 1 . 30 x Fe 41 x Fe

(Mg , Fe)SiO 3 3 . 204 + 104 77 − 5 . 0 2 . 0 0 . 012 0 . 011

(orthopyroxene) 0 . 799 x Fe 24 x Fe

CaMgSi 2 O 6 3 . 277 113 67 4 . 5 1 . 7 0 . 013 0 . 010

(clinopyroxene)
NaAlSi 2 O 6 3 . 32 143 84 4 . 5 1 . 7 0 . 016 0 . 013

(clinopyroxene)
(Mg , Fe)O 3 . 583 + 163 − 131 4 . 2 2 . 5 0 . 016 0 . 024

(magnesiowustite) 2 . 28 x Fe 8 x Fe 77 x Fe

Al 2 O 3 3 . 988 251 162 4 . 3 1 . 8 0 . 014 0 . 019

(corundum)
SiO 2

4 . 289 316 220 4 . 0 1 . 8 0 . 027 0 . 018

(stishovite)
(Mg , Fe) 3 Al 2 Si 3 O 12 3 . 562 + 175 + 90 + 4 . 9 1 . 4 0 . 021 0 . 010

(garnet) 0 . 758 x Fe 1 x Fe 8 x Fe

Ca 3 (Al , Fe) 2 Si 3 O 12 3 . 595 + 169 − 140 − 4 . 9 1 . 6 0 . 016 0 . 015

(garnet) 0 . 265 x Fe 11 x Fe 14 x Fe

(Mg , Fe)SiO 3 3 . 810 + 212 132 − 4 . 3 1 . 7 0 . 017 0 . 017

(ilmenite) 1 . 10 x Fe 41 x Fe

(Mg , Fe)SiO 3 4 . 104 + 266 153 3 . 9 2 . 0 0 . 031 0 . 028

(perovskite) 1 . 07 x Fe

CaSiO 3 4 . 13 227 125 3 . 9 1 . 9 0 . 027 0 . 023

(perovskite)
(Mg , Fe) 4 Si 4 O 12 3 . 518 + 175 + 90 + 4 . 9 1 . 4 0 . 021 0 . 010

(majorite) 0 . 973 x Fe 1x Fe 8x Fe

Ca 2 Mg 2 Si 4 O 12 3 . 53 165 104 4 . 9 1 . 6 0 . 016 0 . 015

(majorite)
Na 2 Al 2 Si 4 O 12

4 . 00 200 127 4 . 9 1 . 6 0 . 016 0 . 015

(majorite)

x Fe is molar fraction of Fe endmember.
Alternative values for parameters in Table 18.2 and data for other minerals are given in the following references.
Anderson, O. L. and Isaak, D. G. (1995) Elastic constants of mantle minerals at high temperature, in Mineral
Physics and Crystallography: A Handbook of Physical Constants , pp. 64--97, ed. T. J. Ahrens, American Geophysical Union,
Washington, DC.
Bass, J. D. (1995) Elasticity of minerals, glasses, and melts, in Mineral Physics and Crystallography: A Handbook of
Physical Constants , pp. 45--63, ed. T. J. Ahrens, American Geophysical Union, Washington, DC.
Duffy, T. and Anderson, D. L. (1989) Seismic velocities in mantle minerals and the mineralogy of the upper mantle.
J. Geophys. Res. , 94 (B2), 1895--912.
Li, B. and Zhang, J. (2005) Pressure and temperature dependence of elastic wave velocity of MgSiO 3 perovskite
and the composition of the lower mantle, Phys. Earth Planet. Inter , 151 , 143--54.
Mattern, E., Matas, J., Ricard, Y. and Bass, J. D. (2005) Lower mantle composition and temperature from mineral
physics and thermodynamic modelling, Geophys. J. Int. , 160 , 973--90.