Fe2+ - Mg partitioning between garnet, magnesiowüstite, and (Mg,Fe)2SiO4 phases of the transition zone

American Mineralogist

Volumn 88, Issue 2-3, 2003, Pages 387-397

  Frost, Daniel J ^a  

^a UNIVERSITÄT BAYREUTH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

BINARY ALLOYS; GARNETS; IRON; MAGNESIUM; MAGNESIUM ALLOYS; OLIVINE; PHASE TRANSITIONS; SILICON; SOLID SOLUTIONS;

410-KM DISCONTINUITY; BULK COMPOSITIONS; CATION EXCHANGES; EXCHANGE REACTION; HIGH FREQUENCY HF; INDIVIDUAL COMPONENTS; MULTIPLE NON LINEAR REGRESSIONS; SOLUTION INTERACTIONS;

IRON ALLOYS;

GARNET; IRON; MAGNESIOWUSTITE; MAGNESIUM; PARTITIONING; PERIDOTITE; PHASE TRANSITION;

EID: 0037293243     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am-2003-2-315     Document Type: Article

References (30)

1. 12 at high pressure and temperatures. Physics of Earth and Planetary Interiors, 15, 90-106.
2. 4: calorimetric measurements, thermochemical calculation, and geophysical application. Journal Geophysical Research, 94, 15671-15686.
3. Ballaran, T.B., Carpenter, M.A., Geiger, C.A., and Kozio, A.M. (1999) Local structural heterogeneity in garnet solid solutions. Physics and Chemistry of Minerals, 26, 554-569.
4. Benz, H.M. and Vidale, J.E. (1993) Sharpness of upper-mantle discontinuities determined from high-frequency reflections. Nature, 365, 147-150.
5. Fei, Y. and Bertka, C.M. (1999) Phase transformations in the Earth's mantle and mantle mineralogy. In Y. Fei, C.M. Bertka, and B.O. Mysen, Eds., Mantle Petrology: Field observations and High pressure experimentation: A Tribute to Francis R. (Joe) Boyd. The Geochemical Society, Special Publication no. 6, p. 189-207.
6. Flanagan, M.P. and Shearer, P.M. (1998) Global mapping of topography on the transition zone velocity discontinuities by stacking SS precusors. Journal of Geophysical Research, 103, 2673-2602.
7. Frost, D.J., Langenhorst, F., and van Aken, P.A. (2001) Fe-Mg partitioning between ringwoodite and magnesiowüstite and the effect of pressure, temperature and oxygen fugacity. Physics and Chemistry of Minerals 28, 455-470.
8. Geiger, C.A. and Feenstra A. (1997) Molar volumes of mixing of almandine-pyrope and almandine-spessartine garnets and the crystal chemistry and thermodynamic-mixing properties of the aluminosilicate garnets. American Mineralogist, 82, 571-581.
9. Hackler, R.T. and Wood, B.J. (1989) Experimental determination of Fe and Mg exchange between garnet and olivine and estimation of Fe-Mg mixing properties in garnet. American Mineralogist, 74, 994-999.
10. Harte, B., Harris, J.W., Hutchinson, M.T., Watt G.R., and Wilding M.C. (1999) Lower mantle mineral associations in diamonds from São Luiz, Brazil. In Y. Fei, C. Bertka, and B.O. Mysen, Eds., Mantle Mineralogy: Field Observations and High Pressure Experimentation: A Tribute to Francis R. (Joe) Boyd. The Geochemical Society, Special Publication no. 6, p. 125-153.
11. Helffrich, G.R. and Wood, B.J. (1996) 410 km discontinuity sharpness and the form of the olivine phase diagram: resolution of apparent seismic contradictions. Geophysical Journal International, 126, 7-12.
12. Irifune, T. (1987) An experimental investigation of the pyroxene-garnet transformation in a pyrolite composition and its bearing on the constitution of the mantle. Physics of Earth and Planetary Interiors, 45, 324-336.
13. Irifune, T. (1994) Absence of an aluminous phase in the upper part of the lower mantle. Nature, 370, 131-133.
14. Irifune, T. and Isshiki, M. (1998) Iron partitioning in a pyrolite mantle and the nature of the 410-km seismic discontinuity. Nature. 349, 409-411.
15. Irifune, T. and Ringwood, A.E. (1993) Phase transformations in subducted oceanic crust and buoyancy relationships at depths of 600-800km in the mantle. Earth and Planetary Science Letters, 117, 101-110.
16. 4 at high pressure and temperature: precise determination of stabilities of olivine, modified spinel and spinel. Journal of Geophysical Research. 94, 15663-15670.
17. O'Neill, H.St.C. and Wall, V.J. (1987) The olivine ortho-pyroxene spinel oxygen geobarometer, the nickel precipitation curve, and the oxygen fugacity of the Earths upper mantle. Journal of Petrology, 8, 1169-1191.
18. O'Neill, H.St.C. and Wood, B.J. (1979) An experimental study of Fe-Mg partitioning between garnet and olivine and its calibration as a geothermometer. Contributions to Mineralogy and Petrology, 70, 59-70.
19. O'Neill, H.St.C., Rubie, D.C., Canil, D., Geiger, C.A., Ross, C.R., Seifert, F., and Woodland, A.B. (1993) Ferric iron in the upper mantle and in transition zone assemblages: implicationss for relative oxygen fugacities in the mantle. Geophysical Monograph. 74 IUGG 14, 73-89.
20. 4 olivine solid solutions. Contributions to Mineralogy and Petrology, in press.
21. Nishihara, Y. and Takahashi, E. (2001) Phase relations and physical properties of an Al-depleted komatiite to 23 GPa. Earth and Planetary Science Letters, 190, 65-77.
22. Revenaugh, J. and Jordan T.H. (1991) Mantle layering from ScS reverberations 2. The transition zone. Journal of Geophysical Research, 96. 19763-19780.
23. Ringwood, A.E. (1991) Phase transformations and their bearing on the constitution and dynamics of the mantle. Geochimica et Cosmochimica Acta. 55, 2083-2110.
24. Shearer, P.M. (1996) Transition zone velocity gradients and the 520-km discontinuity. Journal of Geophysical Research, 101, 3053-3066.
25. Stixrude, L. (1997) Structure and sharpness of phase transitions and mantle discontinuities. Journal of Geophysical Research, 102, 14835-14852.
26. Van Roermund, H.L.M., Drury, M.R., Barnhoorn A., and De Ronde A. (2001) Relict majoritic garnet microstructures from ultra-deep orogenic periodotites in western Norway, Journal of Petrology, 42, 117-130.
27. Von Seckendorff, V. and O'Neill, H.St.C. (1993) An Experimental study of Fe-Mg partitioning between olivine and ortho-pyroxene at 1173K, 1273K, and 1423K and 1.6 GPa. Contributions to Mineralogy and Petrology, 113, 196-207.
28. Vidale J.E. (2001) Peeling back the layers in Earth's mantle. Science. 294, 313.
29. Wiser, N.M. and Wood, B.J. (1991) Experimental determination of activities in FeMg olivine at 1400K. Contributions to Mineralogy and Petrology, 108, 146-153.
30. Wood, B.J. (2000) Phase transformations and partitioning relations in peridotite under lower mantle conditions. Earth and Planetary Science Letters, 174, 341-354.