Discovery of Post-Perovskite Phase Transition and the Nature of D″ Layer

Post-Perovskite: The Last Mantle Phase Transition

Volumn , Issue , 2013, Pages 19-35

  Hirose, Kei ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

MAGNESIUM COMPOUNDS; SHEAR WAVES; SILICON COMPOUNDS; STRUCTURAL GEOLOGY; TECTONICS;

CHEMICAL DIFFERENTIATION; CHEMICAL HETEROGENEITIES; CORE-MANTLE BOUNDARY; HIGH PRESSURE AND HIGH TEMPERATURE CONDITIONS; MID-OCEANIC-RIDGE BASALTS; POST-PEROVSKITE PHASE TRANSITION; SEISMIC DISCONTINUITIES; ULTRALOW VELOCITY ZONE;

PEROVSKITE;

EID: 79959719957     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1029/174GM04     Document Type: Chapter

References (149)

1. Akahama, Y., H. Kawamura, and A.K. Singh, Equation of state of bismuth to 222 GPa and comparison of gold and platinum pressure scales to 145 GPa, J. Appl. Phys., 92, 5892-5897, 2002.
2. 3 perovskite to post-perovskite phase transition, Geophys. Res. Lett., 32, L14303, doi:10.1029/2005GL023192, 2005.
3. Anderson, O.L., and D.G. Isaak, Another look at the core density deficit of Earth's outer core, Phys. Earth Planet. Inter., 131, 19-27, 2002.
4. Anderson, O.L., D.G. Isaak, and S. Yamamoto, Anharmonicity and the equation of state for gold, J. Appl. Phys., 65, 1534-1543, 1989.
5. Andrault, D., Evaluation of (Mg, Fe) partitioning between silicate perovskite and magnesiowüstite up to 120 GPa and 2300 K, J. Geophys. Res., 106, 2079-2087, 2001.
6. Asahara, Y., D.J. Frost, and D.C. Rubie, Partitioning of FeO between magnesiowüstite and liquid iron at high pressures and temperatures: Implications for the composition of the Earth's outer core, Earth Planet. Sci. Lett., 257, 435-449, 2007.
7. Badro, J., G. Fiquet, F. Guyot, E. Gregoryanz, F. Occelli, D. Antonangeli, and M. d'Astuto, Effect of light elements on the sound velocities in solid iron: Implications for the composition of Earth's core, Earth Planet. Sci. Lett., 254, 233-238, 2007.
8. Boehler, R., Melting temperature of the Earth's mantle and core: Earth's thermal structure, Annu. Rev. Earth Planet. Sci., 24, 15-40, 1996.
9. Boyet, M., and R.W. Carlson, 142Nd evidence for early (>4.53 Ga) global differentiation of the silicate Earth, Science, 309, 576-581, 2005.
10. Buffett, B.A., E.J. Garneroand, and R. Jeanloz, Sediments at the top of Earth's core, Science, 290, 1338-1342, 2000.
11. 3 system and implications for the lowermost mantle, Geophys. Res. Lett., 32, L16310, doi:10.1029/2005GL023164, 2005.
12. Caracas, R., and R.E. Cohen, Effect of chemistry on the physical properties of perovskite and post-perovskite, this volume, 2007.
13. 3 minerals, Nature, 446, 68-70, 2007.
14. Castle, J.C., K.C. Creager, J.P. Winchester, and R.D. van der Hilst, Shear wave speeds at the base of the mantle, J. Geophys. Res., 105, 21543-21558, doi:10.1029/2000JB900193, 2000.
15. Christensen, U.R., and A.W. Hofmann, Segregation of subducted oceanic crust in the convecting mantle, J. Geophys. Res., 99, 19867-19884, doi:10.1029/94JB03403, 1994.
16. Cococcioni, M., and S. Gironcoli, Linear response approach to the calculation of the effective interaction parameters in the LDA+U method, Phys. Rev. B, 71, 035105, 2005.
17. Corgne, A., C. Liebske, B.J. Wood, D.C. Rubie, and D.J. Frost, Silicate perovskite-melt partitioning of trace elements and geochemical signature of a deep perovskitic reservoir, Geochim. Cosmochim. Acta, 69, 485-496, 2005.
18. Dobson, D.P., and J.P. Brodholt, Subducted banded iron formations as a source of ultralow-velocity zones at the core-mantle boundary, Nature, 434, 371-374, 2005.
19. Dziewonski, A.M., and D.L. Anderson, Preliminary reference Earth model, Phys. Earth Planet. Inter., 25, 297-356, 1981.
20. 4 using MgO as an internal pressure standard and its geophysical implications, J. Geophys. Res., 109, B02305, doi:10.1029/2003JB002562, 2004.
21. 3 perovskite at lower mantle pressure and temperature conditions, Geophys. Res. Lett., 27, 21-24, doi:10.1029/1999GL008397, 2000.
22. Goarant, F., F. Guyot, J. Peyronneau, and J.P. Poirier, High-pressure and hightemperature reactions between silicates and liquid iron alloys, in the diamond anvil cell, studied by analytical electron microscopy, J. Geophys. Res., 97, 4477-4487, 1992.
23. Garnero, E., J. Revenaugh, Q. Williams, T. Lay, and L. Kellogg, Ultralow velocity zone at the core-mantle boundary, in The core-mantle boundary region, Geodyn. Ser., Vol. 28, edited by M. Gurnis et al., pp.319-334, AGU, Washington, D. C, 1998.
24. Helffrich, G.R., and B.J. Wood, 410 km discontinuity sharpness and the form of the olivine phase diagram: Resolution of apparent seismic contradictions, Geophys. J. Int., 126, F7-F12, 1996.
25. Hernlund, J.W., C. Thomas, and P.J. Tackley, A doubling of the post-perovskite phase boundary and structure of the Earth's lowermost mantle, Nature, 434, 882-886, 2005.
26. Hirose, K., Phase transitions in pyrolitic mantle around 670-km depth: Implications for upwelling of plumes from the lower mantle, J. Geophys. Res., 107, doi:10.1029/2001JB000597, 2002.
27. Hirose, K., Postperovskite phase transition and its geophysical implications, Rev. Geophys., 44, RG3001, doi:101029/2005RG000186, 2006.
28. Hirose, K., and Y. Fei, Subsolidus and melting phase relations of basaltic composition in the uppermost lower mantle, Geochim. Cosmochim. Acta, 66, 2099-2108, 2002.
29. 3, Geophys. Res. Lett., 32, L13313, doi:10.1029/2005GL023219, 2005.
30. Hirose, K., and K. Kawamura, Discovery of post-perovskite phase transition and implications for the nature of D″ layer of the mantle, in Advances in High-Pressure Mineralogy, edited by E. Ohtani, Geol. Soc. Ame. Special Paper, 421, pp.37-46, doi:10.1130/2007.2421(03), 2007.
31. Hirose, K., Y. Fei, Y. Ma, and H. Mao, The fate of subducted basaltic crust in the Earth's lower mantle, Nature, 397, 53-56, 1999.
32. Hirose, K., Y. Fei, S. Ono, T. Yagi, and K. Funakoshi, In situ measurements of the phase transition boundary in Mg3Al2Si3O12: Implicationts for the nature of the seismic discontinuities in the Earth's mantle, Earth Planet. Sci. Lett., 184, 567-573, 2001.
33. Hirose, K., N. Shimizu, W. van Westrenen, and Y. Fei, Trace element partitioning in Earth's lower mantle and implications for the geochemical consequences of partial melting at the core-mantle boundary, Phys. Earth Planet. Inter., 146, 249-260, 2004.
34. Hirose, K., N. Takafuji, N. Sata, and Y. Ohishi, Phase transition and density of subducted MORB crust in the lower mantle, Earth Planet. Sci. Lett., 237, 239-251, 2005a.
35. 3 post-perovskite phase, Am. Mineral., 90, 262-265, 2005b.
36. 3 using Au and MgO internal pressure standards, Geophys. Res. Lett., 33, L01310, doi:10.1029/2005GL024468, 2006a.
37. Hirose, K., S. Karato, V. Cormier, J. Brodholt, and D. Yuen, Unsolved problems in the lowermost mantle, Geophys. Res. Lett., 33, L12S01, doi:10.1029/2006GL025691, 2006b.
38. Hirose, K., K. Ohta, T. Lay, N. Sata, and Y. Ohishi, The fate of subducted MORB crust at the core-mantle boundary, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract U31A-02, 2006c.
39. Holmes, A., N.C., J.A. Moriarty, G.R. Gathers, and W.J. Nellis, The equation of state of platinum to 660 GPa (6.6 MBar), J. Appl. Phys., 66, 2962-2967, 1989.
40. 3 perovskite and lower mantle reequilibration, Science, 309, 1707-1710, 2005.
41. 3 post-perovskite phase in the Earth's lowermost mantle, Nature, 430, 442-445, 2004.
42. Irifune, T., Absence of an aluminous phase in the upper part of the lower mantle, Nature, 370, 131-133, 1994.
43. Irifune, T., and A.E. Ringwood, Phase transformations in subducted oceanic crust and buoyancy relationships at depths of 600-800 km in the mantle, Earth Planet. Sci. Lett., 117, 101-110, 1993.
44. 3-Mg3Al2Si3O12, Phys. Earth Planet. Int., 96, 147-157, 1996.
45. 4 determined by in-situ X-ray diffraction, Science, 279, 1698-1700, 1998.
46. Ishii, M., and J. Tromp, Normal-mode and free-air gravity constraints on lateral variations in velocity and density of Earth's mantle, Science, 285, 1231-1236, 1999.
47. Jamieson, J.C., J.N. Fritz, and M.H. Manghnani, Pressure measurement at high temperature in x-ray diffraction studies: Gold as a primary standard, in High-pressure Research in Geophysics, edited by S. Akimoto et al., pp. 27-48, CAPJ, Tokyo, 1982.
48. Jellinek, A.M., and M. Manga, Links between long-lived hot spots, mantle plumes, D″, and plate tectonics, Rev. Geophys., 42, RG3002, 2004.
49. Kato, T., A.E. Ringwood, and T. Irifune, Experimental determination of element partitioning between silicate perovskites, garnets, and liquids: Constraints on early differentiation of the mantle, Earth Planet. Sci. Lett., 89, 123-145, 1988.
50. Karato, S.-I., and B.B. Karki, Origin of lateral variation of seismic wave velocities and density in the deep mantle, J. Geophys. Res., 106, 21771-21784, doi:10.1029/2001JB000214, 2001.
51. Kesson, S.E., J.D. Fitz Gerald, and J.M.G. Shelley, Mineral chemistry and density of subducted basaltic crust at lower-mantle pressures, Nature, 372, 767-769, 1994.
52. Kesson, S.E., J.D. Fitz Gerald, and J.M. Shelley, Mineralogy and dynamics of a pyrolite lower mantle, Nature, 393, 252-255, 1998.
53. Knittle, E., The solid/liquid partitioning of major and radiogenic elements at the lower mantle pressures: Implications for the core-mantle boundary region, in The Core-Mantle Boundary Region, edited by M. Gurnis et al., pp. 119-130, AGU, Washington, D.C, 1998.
54. 3 perovskite to over 100 GPa, Science, 235, 668-670, 1987.
55. Knittle, E., and R. Jeanloz, Earth's core-mantle boundary: Results of experiments at high pressures and temperatures, Science, 251, 1438-1443, 1991.
56. 3 postperovskite, perovskite, and magnesiowüstite in the Earth's lower mantle, Geophys. Res. Lett., 32, L19301, doi:10.1029/2005GL023257, 2005.
57. 3, Ame. Mineral., 92, 229-232, 2007.
58. 3 perovskite: Implications for seismic discontinuities in the lower mantle, Phys. Earth Planet. Inter., 145, 67-74, 2004.
59. Kuwayama, Y., K. Hirose, N. Sata, and Y. Ohishi, The pyrite-type high-pressure form of silica, Science, 309, 923-925, 2005.
60. Lay, T., and D.V. Helmberger, A lower mantle S-wave triplication and the velocity structure of D″, Geophys. J.R. Astron. Soc., 75, 799-837, 1983.
61. Lay, T., and C.J. Young, Waveform complexity in teleseismic broadband SH displacements: Slab diffractions or deep mantle reflections?, Geophys. Res. Lett., 16, 605-608, 1989.
62. Lay, T., and E.J., Garnero, Core-mantle boundary structures and processes, in The State of the Planet: Frontiers and Challenges in Geophysics, edited by R.S.J. Sparks and C.J. Hawkesworth, pp. 25-42, AGU, Washington, D.C, 2004.
63. Lay, T., and E.J., Garnero, Reconciling the post-perovskite phase with seismological observations of lowermost mantle structure, this volume, 2007.
64. Lay, T., Q. Williams, E.J. Garnero, L. Kellogg, and M.F. Wysession, Seismic wave anisotropy in the D″ region and its implications, in The core-mantle boundary region, edited by M. Gurnis et al., pp. 299-318, AGU, Washington, D.C, 1998a.
65. Lay, T., Q. Williams, and E. Garnero, The core-mantle boundary layer and deep mantle dynamics, Nature, 392, 461-468, 1998b.
66. Lay, T., J. Hernlund, E.J. Garnero, and S. Thorne, A post-perovskite lens and D″ heat flux beneath the central Pacific, Science, 314, 1272-1276, 2006.
67. Liu, H.-Z., J. Chen, J. Hu, C.D. Martin, D.J. Weidner, D. Häusermann, and H.-K. Mao, Octahedral tilting evolution and phase transition in orthorhombic NaMgF3 perovskite under pressure, Geophys. Res. Lett., 32, L04304, doi:10.1029/2004GL022068, 2005.
68. Liu, L., Post-oxide phases of forsterite and enstatite, Geophys. Res. Lett., 2, 417-419, 1975.
69. Mao, W.L., G. Shen, V.B. Prakapenka, Y. Meng, A.J. Cambell, D. Heinz, J. Shu, R.J. Hemley, and H.K. Mao, Ferromagnesian postperovskite silicates in the D" layer of the earth, Proc. Natl. Acad. Sci. USA, 101, 15867-15869, 2004.
70. Mao, W.L., Y. Meng, G, Shen, V.B. Prakapenka, A.J. Campbell, D.L. Heinz, J. Shu, R. Caracas, R.E. Cohen, Y. Fei, R.J. Hemley, and H.-K. Mao, Ironrich silicates in the Earth's D″ layer, Proc. Natl. Acad. Sci. USA, 102, 9751-9753, 2005.
71. Mao, W.L., H.-K. Mao, W. Sturhahn, J. Zhao, V.B. Prakapenka, Y. Meng, J. Shu, Y. Fei, and R.J. Hemley, Iron-rich post-perovskite and the origin of ultralow-velocity zones, Science, 312, 564-565, 2006.
72. Mao, W.L., A.J. Campbell, V.B. Prakapenka, R.J. Hemley, and H.-K. Mao, Effect of iron on the properties of post-perovskite silicate, this volume, 2007.
73. Masters, G., G. Laske, H. Bolton, and A. Dziewonski, The relative behavior of shear velocity, bulk sound velocity, and compressional velocity in the mantle: Implications for chemical and thermal structure, in Earth's deep interior, edited by S. Karato et al., pp. 63-88, AGU, Washington, D. C, 2000.
74. Matyska, C., and D.A. Yuen, The importance of radiative heat transfer on superplumes in the lower mantle with the new post-perovskite phase change, Earth Planet. Sci. Lett., 234, 71-81, 2005.
75. Matyska, C., and D.A. Yuen, Lower mantle dynamics with the post-perovskite phase change, radiative thermal conductivity, temperature- and depthdependent viscosity, Phys. Earth Planet. Inter., 154, 196-207, 2006.
76. McDaniel, C.L., and S.J. Schneider, Phase relation in the CaO-IrO2-Ir system in air, J. Solid State Chem., 4, 275-280, 1972.
77. McNamara, A.K., and S. Zhong, Thermochemical structures within a spherical mantle: Superplumes or piles? J. Geophys. Res., 109, B07402, doi:10.1029/2003JB002847, 2004.
78. 3 perovskite at lower mantle pressures, Science, 268, 1743-1745, 1995.
79. 3 post-perovskite and D″ anisotropy, Science, 316, 1729-1732, 2007.
80. 3 post-perovskite phase, Geophys. Res. Lett., 33, L12302, doi:10.1029/2005GL025001, 2006.
81. 3, Science, 304, 855-858, 2004.
82. Murakami, M., K. Hirose, N. Sata, and Y. Ohishi, Post-perovskite phase transition and crystal chemistry in the pyrolitic lowermost mantle, Geophys. Res. Lett., 32, L03304, doi:10.1029/2004GL021956, 2005.
83. Nakagawa, T., and P. Tackley, Effects of a perovskite-post perovskite phase change mantle boundary in compressible mantle, Geophys. Res. Lett., 31, L16611, doi:10.1029/2004GL020648, 2004.
84. Nakagawa, T., and P.J. Tackley, The interaction between the post-perovskite phase change and a thermo-chemical boundary layer near the core-mantle boundary, Earth Planet. Sci. Lett., 238, 204-216, 2005.
85. Ni, S., and D.V. Helmberger, Seismological constraints on the South African superplume; could be the oldest distinct structure on earth, Earth Planet. Sci. Lett., 206, 119-31, 2003.
86. 3 perovskite and post-perovskite formed by plastic deformation under pressure, Phys. Chem. Miner., in press, 2007.
87. Noel, P.H., and J. Padiou, Structure cristalline de FeUS3, Acta. Cryst., 32, 1593-1595, 1976.
88. 3 in Earth's D" layer, Nature, 430, 445-448, 2004.
89. Oganov, A.R., and S. Ono, The high pressure phase of alumina and implications for Earth's D″ layer, Proc. Natl. Acad. Sci. USA, 102, 10828-10831, 2005.
90. 3 post-perovskite phase, Nature, 438, 1142-1144, 2005.
91. Ohta, K., K. Hirose, T. Lay, N. Sata, and Y. Ohishi, The sharpness and compositional effects on post-perovskite phase transition, Geochim. Cosmochim. Acta, 70, A454, 2006.
92. 3 and pyrolitic mantle composition, Earth Planet. Sci. Lett, 236, 914-932, 2005.
93. 3 at high pressures and high temperatures, Phys. Chem. of Solids, 66, 1714-1720, 2005.
94. Ono, S., E. Ito, and T. Katsura, Mineralogy of subducted basaltic crust (MORB) from 25 to 37 GPa, and chemical heterogeneity of the lower mantle, Earth Planet. Sci. Lett., 190, 57-63, 2001.
95. 3, J. Phys. Chem. Solids, 65, 1527-1530, 2004.
96. Ono, S., Y. Ohishi, M. Isshiki, and T. Watanuki, In situ X-ray observations of phase assemblages in peridotite and basalt compositions at lower mantle conditions: Implications for density of subducted oceanic plate, J. Geophys. Res., 110, B02208, doi:10.1029/2004JB003196, 2005.
97. Panning, M., and B. Romanowicz, Inferences on flow at the base of Earth's mantle based on seismic anisotropy, Science, 303, 351-353, 2004.
98. Revenaugh, J., and T.H. Jordan, Mantle layering from ScS reverberations. 4. the lower mantle and core-mantle boundary, J. Geophys. Res., 96, 19811-19824, 1991.
99. Romanowicz, B., Can we resolve 3D density heterogeneity in the lower mantle? Geophys. Res. Lett., 28, 1107-1110, 2001.
100. 3 type, Geophys. Res. Lett., 33, L15307, doi:10.1029/2006GL026423, 2006.
101. Sakai, T., T. Kondo, E. Ohtani, H. Terasaki, N. Endo, T. Kuba, T. Suzuki, and T. Kikegawa, Interaction between iron and post-perovskite at core-mantle boundary and core signature in plume source region, Geophys. Res. Lett., 33, L15317, doi:10.1029/2006GL026868, 2006.
102. 3) in the Earth's mantle, Science, 274, 1357-1359, 1996.
103. 3): Phase transition and dissociation at mantle conditions, Eur. J. Mineral., 10, 1275-1281, 1998.
104. 3 perovskite stability under lower mantle conditions, Science, 280, 2093-2095, 1998.
105. Shanker, J., B.P. Singh, and S.K. Srivastava, Volume-temperature relationship for iron at 330 GPa and the earth's core density deficit, Phys. Earth Planet. Inter., 147, 333-341, 2004.
106. Shen, G., M.L. Rivers, Y. Wang, and S.R. Sutton, Laser heated diamond cell system at the Advanced Photon Source for in situ x-ray measurements at high pressure and temperature, Rev. Sci. Instrum., 72, 1273-1282, 2001.
107. 3 perovskite to 2300-kilometer depth in Earth's mantle, Science, 293, 2437-2440, 2001.
108. 3 perovskite above 20 GPa, Geophys. Res. Lett., 29, 2166, doi:10.1029/2002GL016148, 2002.
109. 3 perovskite to the core-mantle boundary, Geophys. Res. Lett., 31, L10603, doi:10.1029/2004GL019639, 2004.
110. Sidorin, I., M. Gurnis, and D.V. Helmberger, Evidence for a ubiquitous seismic discontinuity at the base of the mantle, Science, 286, 1326-1329, 1999.
111. Speziale, S., C. Zha, T.S. Duffy, R.J. Hemley, and H.K. Mao, Quasi-hydrostatic compression of magnesium oxide to 52 GPa: Implications for the pressure-volume-temperature equation of state, J. Geophys. Res., 106, 515-528, 2001.
112. 3, Earth Planet. Sci. Lett., 230, 1-10, 2005a.
113. 3, Geophys. Res. Lett., 32, L13305, doi:10.1029/2005GL023163, 2005b.
114. 3 end-members of the perovskite and post-perovskite phases, Geophys. Res. Lett., 33, L01304, doi:10.1029/2005GL023887, 2006.
115. 3 post-perovskite, this volume, 2007.
116. Stixrude, L., Structure and sharpness of phase transitions and mantle discontinuities, J. Geophys. Res., 102, 14835-14852, doi:10.1029/97JB00550, 1997.
117. 3-perovskite in the Earth's lower mantle, Nature, 364, 613-616, 1993.
118. Su, W.-J., and A.M. Dziewonski, Simultaneous inversion for 3-D variations in shear and bulk velocity in the mantle, Phys. Earth Planet. Inter., 100, 134-156, 1997.
119. Tackley, P.J., Three-dimensional simulations of mantle convection with a thermo-chemical basal boundary layer: D″?, in The core-mantle boundary region, edited by M. Gurnis et al., pp. 231-253, AGU, Washington, D. C, 1998.
120. 3 perovskite and the light elements in the core, Geophys. Res. Lett., 32, L06313, doi:10.1029/2005GL022773, 2005.
121. Takahashi, E., Melting of a dry peridotite KLB-1 up to 14 GPa: Implications on the origin of peridotite upper mantle, J. Geophys. Res., 91, 9367-9382, 1986.
122. Tateno, S., K. Hirose, N. Sata, and Y. Ohishi, Phase relations in Mg3Al2Si3O12 to 180 GPa: Effect of Al on post-perovskite phase transition, Geophys. Res. Lett., 32, L15306, doi:10.1029/2005GL023309, 2005.
123. 3 and the post-perovskite phase transition, Phys. Chem. Miner., 32, 721-725, 2006.
124. Tateno, S., K. Hirose, N. Sata, and Y. Ohishi, High solubility of FeO in perovskite and the post-perovskite phase transition, Phys. Earth Planet. Inter., 160, 319-325, 2007.
125. To, A., B. Romanowicz, Y. Capdeville, and N. Takeuchi, 3D effects of sharp boundaries at the borders of the African and Pacific superplumes: Observation and modeling, Earth Planet. Sci. Lett., 233, 137-153, 2005.
126. Tolstikhin, I., and A.W. Hofmann, Early crust on top of the Earth's core, Phys. Earth Planet. Inter., 148, 109-130, 2005.
127. Tsuchiya, T., First-principles prediction of the P-V-T equation of state of gold and the 660-km discontinuity in Earth's mantle, J. Geophys. Res., 108, doi:10.1029/2003JB002446, 2003.
128. 3, Geophys. Res. Lett., 33, L12S04, doi:10.1029/2006GL025706, 2006.
129. 3, Geophys. Res. Lett., 31, L14603, doi:10.1029/2004GL020278, 2004a.
130. 3 perovskite in the Earth's lower mantle, Earth Planet. Sci. Lett., 224, 241-248, 2004b.
131. Walter, M.J., A. Kubo, T. Yoshino, J. Brodholt, K.T. Koga, and Y. Ohishi, Phase relations and equation-of-state of aluminous Mg-silicate perovskite and implications for Earth's lower mantle, Earth Planet. Sci. Lett., 222, 501-516, 2004.
132. 3 perovskite, Science, 248, 468-471, 1990.
133. Watanuki, T., O. Shimomura, T. Yagi, T. Kondo, and M. Issiki, Construction of laser-heated diamond anvil cell system for in situ X-ray diffraction study at SPring-8, Rev. Sci. Instrum., 72, 1289-1292, 2001.
134. Weber, M., J.P. Davis, C. Thomas, F. Kruger, F. Sherbaum, J. Schlittenhardt, and M. Kornig, The structure of the lowermost mantle as determined from using seismic arrays, in seismic Modeling of the Earth's Structure, edited by E. Boschi, G. Ekstrom, and A. Morelli, pp. 399-442, Istit. Naz. di Geophys., Rome, 1996.
135. Wen, L., Seismic evidence for a rapidly varying compositional anomaly at the base of the Earth's mantle beneath the Indian Ocean, Earth Planet. Sci. Lett., 194, 83-95, 2001.
136. 3 perovskite, Phys. Rev. Lett., 70, 3947-3950, 1993.
137. 3 perovskite and geophysical implications, Earth Planet. Sci. Lett., 164, 371-378, 1998.
138. 3 post-perovskite at D″ conditions, Proc. Natl. Acad. Sci. USA, 103, 543-546, 2006.
139. 3 post-perovskite, this volume, 2007.
140. 3 perovskites: Implications for lower mantle composition, in High-Pressure Research in Mineral Physics, Geophys. Monogr., Vol. 39, Miner. Phys. 2, edited by M.H. Manghnani et al., pp. 313-331, Terra Pub./AGU, Tokyo/Washington, D. C, 1987.
141. Wood, B.J., Phase transformations and partitioning relations in peridotite under lower mantle conditions, Earth Planet. Sci. Lett., 174, 341-354, 2000.
142. Wookey, J., S. Stackhouse, J.-M. Kendall, J. Brodholt, and G.D. Price, Efficacy of the post-perovskite phase as an explanation for lowermostmantle seismic properties, Nature, 438, 1004-1007, 2005.
143. Wysession, M.E., T. Lay, J. Revenaugh, Q. Williams, E. Garnero, R. Jeanloz, and L. Kellogg, The D″ discontinuity and its implications, in The coremantle boundary region, edited by M. Gurnis et al., pp.273-297, AGU, Washington, D. C, 1998.
144. Yagi, T., Review of experimental studies on mantle phase transitions, this volume, 2007.
145. Yamazaki, D., and S.-I. Karato, Fabric development in (Mg,Fe)O during large strain, shear deformation: Implications for seismic anisotropy in Earth's lower mantle, Phys. Earth Planet. Int., 131, 251-267, 2002.
146. Yamazaki, D., and T. Irifune, Fe-Mg interdiffusion in magnesiowüstite up to 35 GPa, Earth Planet. Sci. Lett., 216, 301-311, 2003.
147. Yamazaki, D., and S. Karato, Lattice preferred orientation of lower mantle materials and seismic anisotropy in the D″ layer, this volume, 2007.
148. 3 up to 100 GPa, special issue of Rev. High Pres. Sci. Tech., 15, 209, 2005.
149. Zerr, A., A. Diegeler, and R. Boehler, Solidus of Earth's deep mantle, Science, 281, 243-246, 1998.