The role of clinopyroxene in generating U-series disequilibrium during mantle melting

Geochimica et Cosmochimica Acta

Volumn 63, Issue 10, 1999, Pages 1613-1620

  Wood, Bernard J ^a   Blundy, Jonathan D ^a   Robinson, J Andrew C ^a  

^a UNIVERSITY OF BRISTOL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CLINOPYROXENE; DISEQUILIBRIUM; MANTLE PROCESS; MELTING; URANIUM;

EID: 0032695728     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0016-7037(98)00302-0     Document Type: Article

References (34)

1. Baker M.B., Stolper E.M. Determining the composition of high-pressure melts using diamond aggregates. Geochim. Cosmochim. Acta. 58:1994;2811-2827.
2. Beattie P. The generation of uranium series disequilibria by partial melting of spinel peridotite Constraints from partitioning studies . Earth Planet. Sci. Lett. 117:1993;379-391.
3. Beattie P. Uranium-thorium disequilibria and partitioning on melting of garnet peridotite. Nature. 363:1993;63-65.
4. 2. Geochim. Cosmochim. Acta. 44:1980;1251-1264.
5. Blundy J.D., Wood B.J. Prediction of crystal-melt partition coefficients from elastic moduli. Nature. 372:1994;452-454.
6. Blundy J.D., Falloon T.J., Wood B.J., Dalton J.A. Sodium partitioning between clinopyroxene and silicate melts. J. Geophys. Res. 100:1995;15501-15516.
7. Blundy J.D., Robinson J.A.C., Wood B.J. Heavy REE are compatible in clinopyroxene on the spinel lherzolite solidus. Earth Planet. Sci. Letts. 160:1998;493-504.
8. 230Th disequilibrium data. Nature. 384:1996;231-235.
9. Brice J.C. Some thermodynamic aspects of the growth of strained crystais. J. Crystal Growth. 28:1975;249-253.
10. Christie D.M., Carmichael I.S.E., Langmuir C.H. Oxidation states of mid-ocean ridge basalt glasses. Earth Planet Sci. Lett. 79:1986;397-411.
11. 238U disequilibrium in historical lavas from the FAMOUS zone (Mid-Atlantic Ridge 36°50′N) Th and Sr isotopic geochemistry . Earth Planet. Sci Lett. 55:1981;247-256.
12. Elliott T. Fractionation of U and Th during mantle melting A reprise . Chem. Geol. 139:1997;165-183.
13. Falloon T.J., Green D.H. Anhydrous partial melting of MORB pyrolite and other peridotite compositions at 10 kbar. Implications for the origin of primitive MORB glasses. Mineral Petrol. 37:1987;181-219.
14. 2 fugacities at high temperature and pressure. Contrib. Mineral. Petrol. 121:1995;303-308.
15. Hart S.R., Dunn T. Experimental cpx/melt partitioning of 24 trace elements. Contrib. Mineral. Petrol. 113:1993;1-8.
16. Hauri E.H., Wagner T.P., Grove T.L. Experimental and natural partitioning of Th, U, Pb and other trace elements between garnet, clinopyroxene and basaltic melts. Chem. Geol. 117:1994;149-166.
17. Hazen R.M., Finger L.W. Bulk modulus-volume relationship for cation-anion polyhedra. J. Geophys Res. 84:1979;6723-6728.
18. Hirose K., Kushiro I. The effect of melt segregation on polybaric mantle melting Estimation from the incremental melting experiments . Phys. Earth Planet Int. 107:1998;111-118.
19. LaTourette T.Z., Burnett D.S. Experimental determination of U and Th partitioning between clinopyroxene and natural and synthetic basaltic liquid. Earth Planet. Sci. Lett. 110:1992;227-244.
20. LaTourette T.Z., Kennedy A.K., Wasserburg G.J. Uranium-thorium fractionation by garnet - evidence for a deep source and rapid rise of oceanic basalts. Science. 261:1993;739-742.
21. Lundstrom C.C., Shaw H.F., Ryerson F.J., Phinney D.L., Gill J.B., Williams Q. Compositional controls on the partitioning of U, Th, Ba, Pb Sr and Zr between clinopyroxene and haplobasaltic melts implications for uranium series disequilibria in basalts . Earth Planet. Sci. Lett. 128:1994;407-423.
22. 238U disequilibrium and the melting processes beneath ridge axes. Earth Planet. Sci. Lett. 72:1985;149-157.
23. McKenzie D. Some remarks on the movement of small melt fractions in the mantle. Earth Planet. Sci. Lett. 95:1989;53-72.
24. Robinson J.A.C., Wood B.J. The depth of the spinel to garnet transition at the peridotite solidus. Earth Planet. Sci. Lett. 164:1998;277-284.
25. Robinson J.A.C., Wood B.J., Blundy J.D. The beginning of melting of fertile and depleted peridotite at 1.5 GPa. Earth Planet. Sci. Lett. 155:1998;97-111.
26. Shannon R.D. Revised effective ionic radii in oxides and fluorides. Acta Cryst. A32:1976;751-757.
27. Smyth J.R., Bish D.L. Crystal structures and cation sites of the rock forming minerals. 1988;Allen & Unwin, Boston.
28. Spiegelman M., Elliott T. Consequences of melt transport for uranium series disequilibrium in young lavas. Earth Planet. Sci. Lett. 118:1993;1-20.
29. Takahashi E., Kushiro I. Melting of a dry peridotite at high pressures and basalt magma genesis. Am. Mineral. 68:1983;859-879.
30. van Westrenen W., Blundy J. D., Wood B. J., and Withers A. C. (1997) Garnet/melt trace element partitioning: Theory and experiment. Terra Nova 9, 452 (abstr.).
31. 2O from 7 to 35 kbar. J. Petrol. 35:1994;329-359.
32. Williams R.M., Gill J.B. Effects of partial melting on the uranium decay series. Geochim. Cosmochim. Acta. 53:1989;1607-1619.
33. Wood B.J., Blundy J. A predictive model for rare earth element partitioning between clinopyroxene and anhydrous silicate melt. Contrib. Mineral. Petrol. 129:1997;166-181.
34. Wood B.J., Bryndzia L.T., Johnson K.E. Mantle oxidation state and its relationship to tectonic environment and fluid speciation (with L. T. Bryndzia, K. E. Johnson). Science. 248:1990;337-345.