Experimental constraints on melting conditions relevant to core formation

Geochimica et Cosmochimica Acta

Volumn 60, Issue 7, 1996, Pages 1109-1112

  Boehler, R ^a  

^a MAX PLANCK INSTITUTE FOR CHEMISTRY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CORE FORMATION; HIGH PRESSURE; HIGH TEMPERATURE; MANTLE; MELTING EXPERIMENT;

EID: 0029769811     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/0016-7037(96)00021-X     Document Type: Article

References (30)

1. Anderson O. L. (1994) Imperfections of the 1993 phase diagram of iron. Amer. Inst. Phys.
2. Boehler R. (1986) The phase diagram of iron to 430 kbar. Geophys. Res. Lett. 13, 1153-1156.
3. Boehler R. (1992) Melting of the Fe-FeO and the Fe-FeS system at high pressure: constraints on core temperatures. Earth Planet. Sci. Lett. 111, 217-227.
4. Boehler R. (1993) Temperatures in the Earth's core from melting-point measurements of iron at high static pressures. Nature 363, 534-536.
5. Boehler R. (1995) Fe-FeS eutectic temperatures to 620 kbar. Phys. Earth Planet. Intl. (in press).
6. Boehler R. and Chopelas A. (1991) A new approach to laser heating in high pressure mineral physics. Geophys. Res. Lett. 18, 1147-1150.
7. Boehler R. and Zerr A. (1994) Response. Science 264, 280-281.
8. Boehler R., von Bargen N., and Chopelas A. (1990) Melting, thermal expansion, and phase transitions of iron at high pressures. J. Geophys. Res. 95, 731-736.
9. Boehler R., Ross M., and Boercker D. B. (1995) High pressure melting curves of alkali-halides. Phys. Rev. 53, 1-8.
10. Boness D. A. and Brown J. M. (1993) Bulk superheating of solid KBr and CsBr with shock waves. Phys. Rev. Lett. 71, 2931-2934.
11. Brown J. M. and McQueen R. G. (1986) Phase transitions, Grüneisenparameter and elasticity for shocked iron between 77 Gpa and 400 GPA. J. Geophys. Res. 91, 7485-7494.
12. Brown J. M. and Shankland T. J. (1981) Thermodynamic parameters in the Earth as determined from seismic profiles. Geophys. J. R. Astr. Soc. 66, 579-596.
13. Cadek O., Yuen D. A., Steinbach V., Chopelas A., and Matyska C. (1994) Lower-mantle thermal structure deduced from seismic tomography, mineral physics, and numerical modeling. Earth Planet. Sci. Lett. 121, 385-402.
14. Chopelas A. (1992) Sound velocities of MgO to very high compression. Earth Planet. Sci. Lett. 114, 185-192.
15. Gallagher K. G. and Ahrens T. J. (1994) First measurements of thermal conductivity in griceite and corundum at ultra high pressure and the melting point of iron. EOS Trans. Amer. Geophys. U. 75, 653.
16. Lyzenga G. A., Ahrens T. J., and Mitchell A. C. (1983) Shock temperatures of SiO2 and their geophysical implications. J. Geophys. Res. 88, 2431-2444.
17. Masters T. G. and Shearer P. M. (1990) Summary of seismological constraints on the structure of the earth's core. J. Geophys. Res. 95, 21691-21695.
18. Ringwood A. E. and Hibberson W. (1990) The system Fe-FeO revisited. Phys. Chem. Miner. 17, 313-319.
19. Saxena S. K., Shen G., and Lazor P. (1993) Experimental evidence for a new iron phase and implications for earth's core. Science 260, 1312-1314.
20. Shen G. and Lazor P. (1995) Melting of minerals under the lower mantle conditions: Experimental results. J. Geophys. Res. (in press).
21. Stacey F. (1994) Thermodynamic relationships and the properties of iron at earth's core conditions. In High-Pressure Science and Technology (ed. S. C. Schmidt et al.), pp. 899-902. Amer. Inst. Phys. Press.
22. Urakawa S., Kato M., and Kumazawa M. (1987) Experimental study of the phase relation in the system Fe-Ni-O-S up to 15 GPA. In High-Pressure Research in Mineral Physics (ed. M. H. Manghnani and Y. Syono), pp. 95-111. TERRAPUB.
23. Usselman T. M. (1975) Experimental approach to the state of the core: Part II. composition and thermal regime. Amer. J. Sci. 275, 291-303.
24. Williams Q. and Jeanloz R. (1990) Melting relations in the iron-sulfur system at ultra-high pressures: Implications for the thermal state of the Earth. J. Geophys. Res. 95, 19,299-19,310.
25. Williams Q. R., Jeanloz R., Bass J., Swendsen B., and Ahrens T. J. (1987) The melting curve of iron to 2.5 Mbar: A constraint on the temperature in the Earth's core. Science 236, 181-182.
26. Yoo C. S., Akella J., and Ruddle C. (1992) Melting studies of iron and uranium by DAC: laser heating experiments. EOS Trans. AGU 73, 64.
27. Yoo C. S., Holmes N. C., Ross M., Webb D. J., and Pike C. (1993) Shock temperatures and melting of iron at earth core conditions. Phys. Rev. Lett. 70, 3931-3934.
28. Young C. J. and Lay T. (1987) The core-mantle boundary. Ann. Rev. Earth Planet. Sci. 15, 25-46.
29. 3-perovskite to 625 kilobars: indication of a high melting temperature in the lower mantle. Science 262, 553-555.
30. Zerr A. and Boehler R. (1994) Constraints on the melting temperature of the lower mantle from high-pressure experiments on MgO and magnesiowüstite. Nature 371, 506-508.