Shock-induced melting of MgSiO3 perovskite and implications for melts in Earth's lowermost mantle

Geophysical Research Letters

Volumn 31, Issue 14, 2004, Pages

  Akins, Joseph A ^a   Luo, Sheng Nian ^b   Asimow, Paul D ^a   Ahrens, Thomas J ^a  

^a CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^b LOS ALAMOS NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EQUATIONS OF STATE; MELTING; PEROVSKITE; SILICATES;

ENSTATITE; SHOCK-INDUCED MELTING;

MAGNESIUM COMPOUNDS;

ENSTATITE; LOWER MANTLE; PARTIAL MELTING; PEROVSKITE; SEISMIC VELOCITY;

EID: 4644311619     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2004GL020237     Document Type: Article

References (35)

1. 2 system, Ph.D. thesis, Calif. Inst. of Technol., Pasadena.
2. Anderson, O. L. (1995), Equations of State of Solids for Geophysics and Ceramic Sciences, 405 pp., Oxford Univ. Press, New York.
3. Boehler, R. (2000), High-pressure experiments and the phase diagram of lower mantle and core materials, Rev. Geophys., 38, 221-245.
4. Boslough, M. B. (1988), Postshock temperatures in silica, J. Geophys. Res., 93, 6477-6484.
5. Brodholt, J. P., A. R. Oganov, and G. D. Price (2002), Computational mineral physics and the physical properties of perovskite, Philos. Trans. R. Soc. London, Ser. A, 360(1800), 2507-2520.
6. Chhabildas, L. C., and J. M. Miller (1985), Release-adiabat measurements in crystalline quartz, Rep. SAND85-1092, Sandia Natl. Lab., Albuquerque, N. M.
7. d'Almeida, T., and Y. M. Gupta (2000), Real-time x-ray diffraction measurements of the phase transition in KCl shocked along 100, Phys. Rev. Lett., 85(2), 330-333.
8. 3 perovskite at lower mantle pressure and temperature conditions, Geophys. Res. Lett., 27, 21-24.
9. 3 perovskite determined by in situ X ray observations up to 30 GPa and 3000 K, J. Geophys. Res., 101, 8257-8269.
10. Gong, Z. Z., Y. W. Fei, F. Dai et al. (2004), Equation of state and phase stability of mantle perovskite up to 140 GPa shock pressure and its geophysical implications, Geophys. Res. Lett., 31, L04614, doi:10.1029/2003GL019132.
11. 3, Geophys. Res. Lett., 28, 4351-4354.
12. Ito, E., and T. Katsura (1992), Melting of ferromagnesian silicates under the lower mantle conditions, in High Pressure Research: Application to Earth and Planetary Sciences, Geophys. Monogr. Ser., vol. 67, edited by Y. Syono and M. H. Manghnani, pp. 315-322, AGU, Washington, D. C.
13. Karki, B. B., L. Stixrude, and R. M. Wentzcovitch (2001), High-pressure elastic properties of major materials of Earth's mantle from first principles, Rev., Geophys., 39, 507-534.
14. Luo, S. N., and T. J. Ahrens (2003), Superheating systematics of crystalline solids, Appl. Phys. Lett., 82(12), 1836-1838.
15. 3 glass, enstatite, olivine and quartz: Optical emission, temperatures, and melting, J. Geophys. Res., 109, B05205, doi:10.1029/2003JB002860.
16. 2 and their geophysical implications, J. Geophys. Res., 88, 2431-2444.
17. Marsh, S. P. (1980), LASL Shock Hugoniot Data, 658 pp., Univ. of Calif. Press, Berkeley.
18. 3 perovskite from molecular dynamics and constraints on lower mantle composition, J. Geophys. Res., 106, 8615-8627.
19. 2, in Shock Compression of Condensed Matter 1991, edited by S. C. Schmidt et al., pp. 75-78, Elsevier Sci., New York.
20. McQueen, R. G., and J. N. Fritz (1982), Some techniques and results from high-pressure shock-wave experiments utilizing the radiation from shocked transparent materials, in Shock Waves in Condensed Matter 1981, edited by W. J. Nellis, L. Seaman, and R. A. Graham, pp. 193-207, Am. Inst. of Phys., New York.
21. McQueen, R. G., J. N. Fritz, and S. P. Marsh (1963), On the equation of state of stishovite, J. Geophys. Res., 68, 2319-2322.
22. Montague, N. L., and L. H. Kellogg (2000), Numerical models of a dense layer at the base of the mantle and implications for the geodynamics of D″, J. Geophys. Res., 105, 11,101-11,114.
23. 3, Science, 304(5672), 855-858.
24. Namiki, A. (2003), Can the mantle entrain D″?, J. Geophys. Res., 108(B10), 2487, doi:10.1029/2002JB002315.
25. Presnall, D. C. (1995), Phase diagrams of Earth-forming minerals, in Mineral Physics and Crystallography: A Handbook of Physical Constants, AGU Ref. Shelf, vol. 2, edited by T. J. Ahrens, pp. 248-268, AGU, Washington D. C.
26. 3 with the perovskite structure based on experimental measurement, Am. Mineral., 84(3), 226-232.
27. Shen, G. Y., and P. Lazor (1995), Measurement of melting temperatures of some minerals under lower mantle pressures, J. Geophys. Res., 100, 17,699-17,713.
28. 3 perovskite to the core-mantle boundary, Geophys. Res. Lett., 31, L10603, doi:10.1029/2004GL019639.
29. Simakov, G. V., and R. F. Trunin (1973), On the existence of the overdense perovskite structures in magnesian silicates under conditions of high pressure, Izv. Earth Phys., 9, 603-604.
30. Siwick, B. J., J. R. Dwyer, R. E. Jordan, and R. J. D. Miller (2003), An atomic-level view of melting using femtosecond electron diffraction, Science, 302(5649), 1382-1385.
31. Sweeney, J. S., and D. L. Heinz (1998), Laser-heating through a diamond-anvil cell: Melting at high pressures, in Properties of Earth and Planetary Materials at High Pressure and Temperature, Geophys. Monogr. Ser., vol. 101, edited by M. H. Manghnani and T. Yagi, pp. 197-213, AGU, Washington, D. C.
32. 3 perovskite under high pressures up to 20 GPa, Geophys. Res. Lett., 22, 1005-1008.
33. 3 perovskite - Constraints on composition of the lower mantle, Phys. Earth. Planet. Inter., 83(1), 13-40.
34. Williams, Q., and E. J. Garnero (1996), Seismic evidence for partial melt at the base of Earth's mantle, Science, 273(5281), 1528-1530.
35. Zhong, S., and B. H. Hager (2003), Entrapment of a dense layer by thermal plumes, Geophys. J. Int., 154, 666-676.