The Soret effect and isotopic fractionation in high-temperature silicate melts

Nature

Volumn 473, Issue 7345, 2011, Pages 70-73

  Dominguez, Gerardo ^a   Wilkins, Gautam ^b   Thiemens, Mark H ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM; IRON; MAGNESIUM; SILICATE;

CALCIUM; DIFFUSION; HIGH TEMPERATURE; IRON; ISOTOPIC FRACTIONATION; MAGNESIUM; MASS TRANSFER; NANOTECHNOLOGY; SILICATE MELT; SOLAR SYSTEM; TEMPERATURE GRADIENT; THERMAL CONDUCTIVITY; WATER CHEMISTRY;

ARTICLE; FRACTIONATION; GEOCHEMICAL ANALYSIS; HIGH TEMPERATURE; PHYSICAL PHENOMENA; PRIORITY JOURNAL; SOFET EFFECT;

EID: 85027924358     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature09911     Document Type: Article

References (30)

1. Luz, B., Barkan, E., Yam, R. & Shemesh, A. Fractionation of oxygen and hydrogen isotopes in evaporating water. Geochim. Cosmochim. Acta 73, 6697-6703 (2009).
2. Uemura, R., Barkan, E., Abe, O. & Luz, B. Triple isotope composition of oxygen in atmospheric water vapor. Geophys. Res. Lett. 37, L04402 (2010).
3. Richter, F. M., Dauphas, N. & Teng, F.-Z. Non-traditional fractionation of nontraditional isotopes: evaporation, chemical diffusion and Soret diffusion. Chem. Geol. 258, 92-103 (2009).
4. Richter, F. M., Janney, P. E., Mendybaev, R. A., Davis, A. M. & Wadhwa, M. Elemental and isotopic fractionation of Type B CAI-like liquids by evaporation. Geochim. Cosmochim. Acta 71, 5544-5564 (2007). (Pubitemid 350028601)
5. Richter, F. M. et al. Isotopic fractionation of themajor elements ofmolten basalt by chemical and thermal diffusion.Geochim. Cosmochim. Acta 73,4250-4263 (2009).
6. Richter, F. M.,Watson, E. B.,Mendybaev, R. A., Teng, F.-Z. & Janney, P. E.Magnesium isotope fractionation in silicate melts by chemical and thermal diffusion. Geochim. Cosmochim. Acta 72, 206-220 (2008). (Pubitemid 350227037)
7. Braun, D. & Libchaber, A. Thermal force approach to molecular evolution. Phys. Biol. 1, 1-8 (2004).
8. Korkotian, E. & Segal, M. Spatially confined diffusion of calcium in dendrites of hippocampal neurons revealed by flash photolysis of caged calcium. Cell Calcium 40, 441-449 (2006). (Pubitemid 44660715)
9. Duhr, S. & Braun, D. Thermophoretic depletion follows Boltzmann distribution. Phys. Rev. Lett. 96, 168301 (2006).
10. Duhr, S.& Braun, D.Whymoleculesmove along a temperature gradient. Proc. Natl Acad. Sci. USA 103, 19678-19682 (2006).
11. Soret, C. Sur l'etat d'equilibre que prend au point de vue de sa concentration une dissolution saline primitivement homohene dont deux parties sont portees a des temperatures differentes. Arch. Sci. Phys. Nat. 2, 48-61 (1879).
12. Walker, D. & Delong, S. E. Soret separation of mid-ocean ridge basalt magma. Contrib. Mineral. Petrol. 79, 231-240 (1982).
13. Lesher, C. E. & Walker, D. Solution properties of silicate liquids from thermal diffusion experiments. Geochim. Cosmochim. Acta 50, 1397-1411 (1986).
14. Huang, F. Chemical and isotopic fractionation of wet andesite in a temperature gradient: experiments and models suggesting a new mechanism of magma differentiation. Geochim. Cosmochim. Acta 73, 729-749 (2009).
15. Huang, F. Magnesium isotopic composition of igneous rock standards measured by MC-ICP-MS. Chem. Geol. 268, 15-23 (2009).
16. Huang, F. et al. Isotope fractionation in silicate melts by thermal diffusion. Nature 464, 396-400 (2010).
17. Vashishta, P., Kalia, R. K. & Rino, J. P. Interaction potential for SiO2: A moleculardynamics study of structural correlations. Phys. Rev. B 41, 12197-12209 (1990).
18. LaTourrette, T., Wasserburg, G. J. & Fahey, A. J. Self diffusion of Mg, Ca, Ba, Nd, Yb, Ti, Zr, and U in haplobasaltic melt. Geochim. Cosmochim. Acta 60, 1329-1340 (1996).
19. Truhlar, D. G., Garrett, B. C. & Klippenstein, S. J. Current status of transition-state theory. J. Phys. Chem. 100, 12771-12800 (1996). (Pubitemid 126821027)
20. Eyring, H. The activated complex in chemical reactions. J. Chem. Phys. 3, 107-115 (1935).
21. Wert, C. & Zener, C. Interstitial atomic diffusion coefficients. Phys. Rev. 76, 1169-1175 (1949).
22. Vineyard, G. H. Frequency factors and isotope effects in solid state rate processes. J. Phys. Chem. Solids 3, 121-127 (1957).
23. Roselieb, K.& Jambon, A. Tracer diffusion of potassium, rubidium, and cesiumin a supercooled jadeite melt. Geochim. Cosmochim. Acta 61, 3101-3110 (1997).
24. Chakraborty, S. Diffusion in solid silicates: a tool to track timescales of processes comes of age. Annu. Rev. Earth Planet. Sci. 36, 153-190 (2008). (Pubitemid 351883473)
25. Watson, E. B. & Baxter, E. F. Diffusion in solid-Earth systems. Earth Planet. Sci. Lett. 253, 307-327 (2007). (Pubitemid 46050400)
26. Pathria, R. K. Statistical Mechanics, 2nd ed. (Butterworth-Heinemann, 1996).
27. Kubicki, J. D. & Lasaga, A. C. Molecular dynamics simulations of SiO2 melt and glass: ionic and covalent models. Am. Mineral. 73, 941-955 (1988).
28. Landsberg, P. T. D grad v or grad(Dv)? J. Appl. Phys. 56, 1119-1122 (1984).
29. van Milligen, B. P., Bons, P. D., Carreras, B. A. & Sanchez, R. On the applicability of Fick's law to diffusion in inhomogeneous systems. Eur. J. Phys. 26, 913-925 (2005). (Pubitemid 41145593)
30. Astumian, R. D. Coupled transport at the nanoscale: the unreasonable effectiveness of equilibrium theory. Proc. Natl Acad. Sci. USA 104, 3-4 (2007). (Pubitemid 46067973)