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Volumn 468, Issue 7325, 2010, Pages 807-812

Outer-core compositional stratification from observed core wave speed profiles

Author keywords

[No Author keywords available]

Indexed keywords

IRON; OXYGEN; SULFUR;

EID: 78650077057     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature09636     Document Type: Article
Times cited : (180)

References (40)
  • 1
    • 0001261361 scopus 로고
    • Elasticity and constitution of the Earth's interior
    • Birch, F. Elasticity and constitution of the Earth's interior. J. Geophys. Res. 57, 227-286 (1952).
    • (1952) J. Geophys. Res. , vol.57 , pp. 227-286
    • Birch, F.1
  • 2
    • 0019727010 scopus 로고
    • Models of the Earth's core
    • Stevenson, D. J. Models of the Earth's core. Science 214, 611-619 (1981).
    • (1981) Science , vol.214 , pp. 611-619
    • Stevenson, D.J.1
  • 3
    • 0019353851 scopus 로고
    • Compositional convection and stratification of Earth's core
    • Fearn, D. R. & Loper, D. E. Compositional convection and stratification of Earth's core. Nature 289, 393-394 (1981).
    • (1981) Nature , vol.289 , pp. 393-394
    • Fearn, D.R.1    Loper, D.E.2
  • 4
    • 33745188226 scopus 로고    scopus 로고
    • Accretion of the Earth and segregation of its core
    • Wood, B. J., Walter, M. J. & Wade, J. Accretion of the Earth and segregation of its core. Nature 441, 825-833 (2006).
    • (2006) Nature , vol.441 , pp. 825-833
    • Wood, B.J.1    Walter, M.J.2    Wade, J.3
  • 5
    • 2442564531 scopus 로고    scopus 로고
    • Partitioning of oxygen during core formation on the Earth and Mars
    • Rubie, D. C., Gessmann, C. K. & Frost, D. J. Partitioning of oxygen during core formation on the Earth and Mars. Nature 429, 58-61 (2004).
    • (2004) Nature , vol.429 , pp. 58-61
    • Rubie, D.C.1    Gessmann, C.K.2    Frost, D.J.3
  • 6
    • 43549108353 scopus 로고    scopus 로고
    • Chemical equilibrium between ferropericlase and molten iron to 134 GPa and implications for iron content at the bottom of the mantle
    • Ozawa, H. et al. Chemical equilibrium between ferropericlase and molten iron to 134 GPa and implications for iron content at the bottom of the mantle. Geophys. Res. Lett. 35, L05308 (2008).
    • (2008) Geophys. Res. Lett. , vol.35
    • Ozawa, H.1
  • 7
    • 76949093537 scopus 로고    scopus 로고
    • Partitioning of oxygen between the Earth's mantle and core
    • Frost, D. J. et al. Partitioning of oxygen between the Earth's mantle and core. J. Geophys. Res. 115, B02202 (2010).
    • (2010) J. Geophys. Res. , vol.115
    • Frost, D.J.1
  • 8
    • 0001044710 scopus 로고
    • Liquidus surface of the Fe-S-O system
    • Hilty, D. C. & Crafts, W. Liquidus surface of the Fe-S-O system. J. Metals (Trans. AIME) 4, 1307-1312 (1952).
    • (1952) J. Metals (Trans. AIME) , vol.4 , pp. 1307-1312
    • Hilty, D.C.1    Crafts, W.2
  • 9
    • 0025592968 scopus 로고
    • The stably-stratified outermost core revisited
    • Lay, T. & Young, C. The stably-stratified outermost core revisited. Geophys. Res. Lett. 17, 2001-2004 (1990).
    • (1990) Geophys. Res. Lett. , vol.17 , pp. 2001-2004
    • Lay, T.1    Young, C.2
  • 10
    • 0027868313 scopus 로고
    • Constraining outermost core velocity with SmKS waves
    • Garnero, E. J., Helmberger, D. V. & Grand, S. P. Constraining outermost core velocity with SmKS waves. Geophys. Res. Lett. 20, 2463-2466 (1993).
    • (1993) Geophys. Res. Lett. , vol.20 , pp. 2463-2466
    • Garnero, E.J.1    Helmberger, D.V.2    Grand, S.P.3
  • 11
    • 34250802183 scopus 로고    scopus 로고
    • Possibility of a low P-wave velocity layer in the outermost core from global SmKS waveforms
    • Tanaka, S. Possibility of a low P-wave velocity layer in the outermost core from global SmKS waveforms. Earth Planet. Sci. Lett. 259, 486-499 (2007).
    • (2007) Earth Planet. Sci. Lett. , vol.259 , pp. 486-499
    • Tanaka, S.1
  • 12
    • 77952551514 scopus 로고    scopus 로고
    • Precise seismic-wave velocity atop Earth's core: No evidence for outer-core stratification
    • Alexandrakis, C. & Eaton, D. W. Precise seismic-wave velocity atop Earth's core: no evidence for outer-core stratification. Phys. Earth Planet. Inter. 180, 59-65 (2010).
    • (2010) Phys. Earth Planet. Inter. , vol.180 , pp. 59-65
    • Alexandrakis, C.1    Eaton, D.W.2
  • 14
    • 11144295210 scopus 로고    scopus 로고
    • Seismological constraintson core composition from Fe-O-S liquid immiscibility
    • Helffrich, G. & Kaneshima, S. Seismological constraintson core composition from Fe-O-S liquid immiscibility. Science 306, 2239-2242 (2004).
    • (2004) Science , vol.306 , pp. 2239-2242
    • Helffrich, G.1    Kaneshima, S.2
  • 15
    • 0345149451 scopus 로고    scopus 로고
    • On the resolution of density within the Earth
    • Masters, G. & Gubbins, D. On the resolution of density within the Earth. Phys. Earth Planet. Inter. 140, 159-167 (2003).
    • (2003) Phys. Earth Planet. Inter. , vol.140 , pp. 159-167
    • Masters, G.1    Gubbins, D.2
  • 16
    • 0033977460 scopus 로고    scopus 로고
    • Amodel of the dynamical structureof the Earth's outer core
    • Loper, D. E. Amodel of the dynamical structureof the Earth's outer core. Phys. Earth Planet. Inter. 117, 179-196 (2000).
    • (2000) Phys. Earth Planet. Inter. , vol.117 , pp. 179-196
    • Loper, D.E.1
  • 17
    • 0027865862 scopus 로고
    • MAC-oscillations of the hidden ocean of the core
    • Braginsky, S. I. MAC-oscillations of the hidden ocean of the core. J. Geomag. Geoelectr. 45, 1517-1538 (1993).
    • (1993) J. Geomag. Geoelectr. , vol.45 , pp. 1517-1538
    • Braginsky, S.I.1
  • 19
    • 0031859593 scopus 로고    scopus 로고
    • Stratification of the outer core at the core-mantle boundary
    • Lister, J. R. & Buffett, B. A. Stratification of the outer core at the core-mantle boundary. Phys. Earth Planet. Inter. 105, 5-19 (1998).
    • (1998) Phys. Earth Planet. Inter. , vol.105 , pp. 5-19
    • Lister, J.R.1    Buffett, B.A.2
  • 20
    • 0034855445 scopus 로고    scopus 로고
    • Wetting properties of Fe-Ni-Co-Cu-O-S melts against olivine: Implications for sulfide melt mobility
    • Rose, L. A. & Brenan, J. M. Wetting properties of Fe-Ni-Co-Cu-O-S melts against olivine: implications for sulfide melt mobility. Econ. Geol. 96, 145-157 (2001).
    • (2001) Econ. Geol. , vol.96 , pp. 145-157
    • Rose, L.A.1    Brenan, J.M.2
  • 21
    • 0016485430 scopus 로고
    • Experimental approach to the state ofthe core: Part I. The liquidus relations of the Fe-rich portion of the Fe-Ni-S system from 30 to 100 kb
    • Usselman, T.M. Experimental approach to the state ofthe core: part I. The liquidus relations of the Fe-rich portion of the Fe-Ni-S system from 30 to 100 kb. Am. J. Sci. 275, 278-290 (1975).
    • (1975) Am. J. Sci. , vol.275 , pp. 278-290
    • Usselman, T.M.1
  • 22
    • 0031413868 scopus 로고    scopus 로고
    • Metal-silicate partitioning and the incompatibility of S and Si during core formation
    • Kilburn, M. R. & Wood, B. J. Metal-silicate partitioning and the incompatibility of S and Si during core formation. Earth Planet. Sci. Lett. 152, 139-148 (1997).
    • (1997) Earth Planet. Sci. Lett. , vol.152 , pp. 139-148
    • Kilburn, M.R.1    Wood, B.J.2
  • 23
    • 77954660172 scopus 로고    scopus 로고
    • Stratification of the top of the core due to chemical interactions with the mantle
    • Buffett, B. A. & Seagle, C. T. Stratification of the top of the core due to chemical interactions with the mantle. J. Geophys. Res. 115, B04407 (2010).
    • (2010) J. Geophys. Res. , vol.115
    • Buffett, B.A.1    Seagle, C.T.2
  • 24
    • 0036295603 scopus 로고    scopus 로고
    • Self-diffusion inliquid Fe athigh pressure
    • Dobson, D. Self-diffusion inliquid Fe athigh pressure. Phys. Earth Planet. Inter. 130, 271-284 (2002).
    • (2002) Phys. Earth Planet. Inter. , vol.130 , pp. 271-284
    • Dobson, D.1
  • 25
    • 0018495354 scopus 로고
    • Travel time inversion: A geometrical approach
    • Garmany, J., Orcutt, J. A. & Parker, R. L. Travel time inversion: a geometrical approach. J. Geophys. Res. 84, 3615-3622 (1979).
    • (1979) J. Geophys. Res. , vol.84 , pp. 3615-3622
    • Garmany, J.1    Orcutt, J.A.2    Parker, R.L.3
  • 26
    • 85012960969 scopus 로고    scopus 로고
    • Earth's deep interior: Mineral physics and tomography from the atomic to the global scale
    • (eds Karato S.-I. Forte A. M. Liebermann R.C. MastersG. & Stixrude L.) American Geophysical Union
    • Masters, G., Laske, G., Bolton, H. & Dziewonski, A. in Earth's Deep Interior: Mineral Physics and Tomography from the Atomic to the Global Scale (eds Karato, S.-I., Forte, A. M., Liebermann, R.C., Masters,G. & Stixrude, L.) 63-87 (Geophys. Monogr. 117, American Geophysical Union, 2000).
    • (2000) Geophys. Monogr. , vol.117 , pp. 63-87
    • Masters, G.1    Laske, G.2    Bolton, H.3    Dziewonski, A.4
  • 27
    • 0026054159 scopus 로고
    • Traveltimes for global earthquake location and phase identification
    • Kennett, B. L. N. & Engdahl, E. R. Traveltimes for global earthquake location and phase identification. Geophys. J. Int. 105, 429-465 (1991).
    • (1991) Geophys. J. Int. , vol.105 , pp. 429-465
    • Kennett, B.L.N.1    Engdahl, E.R.2
  • 28
    • 0027388586 scopus 로고
    • Body wave traveltimes and a spherically symmetric P-and S-wave velocity model
    • Morelli, A. & Dziewonski, A. M. Body wave traveltimes and a spherically symmetric P-and S-wave velocity model. Geophys. J. Int. 112, 178-194 (1993).
    • (1993) Geophys. J. Int. , vol.112 , pp. 178-194
    • Morelli, A.1    Dziewonski, A.M.2
  • 29
    • 0028813015 scopus 로고
    • Constraintsonseismic velocities in the Earth from traveltimes
    • Kennett, B.L. N., Engdahl, E. R. & Buland, R.Constraintsonseismic velocities in the Earth from traveltimes. Geophys. J. Int. 126, 108-124 (1995).
    • (1995) Geophys. J. Int. , vol.126 , pp. 108-124
    • Kennett, B.L.N.1    Engdahl, E.R.2    Buland, R.3
  • 30
    • 0037091636 scopus 로고    scopus 로고
    • Iron under Earth's core conditions: Liquid-state thermodynamics and high-pressure melting curve from ab initio calculations
    • Alfé, D. Price, G. D. & Gillan, M. J. Iron under Earth's core conditions: liquid-state thermodynamics and high-pressure melting curve from ab initio calculations. Phys. Rev. B 65, 165118 (2002).
    • (2002) Phys. Rev. B , vol.65 , pp. 165118
    • Alfé, D.1    Price, G.D.2    Gillan, M.J.3
  • 31
    • 0018728386 scopus 로고
    • Extensions of the reflectivity method for a buried source
    • Kind, R. Extensions of the reflectivity method for a buried source. J. Geophys. 45, 373-380 (1979).
    • (1979) J. Geophys. , vol.45 , pp. 373-380
    • Kind, R.1
  • 32
    • 33644883636 scopus 로고    scopus 로고
    • Improving seismic resolution of outermost core structure by multichannel analysis and deconvolution of broadband SmKS phases
    • Eaton, D. W. & Kendall, J.-M. Improving seismic resolution of outermost core structure by multichannel analysis and deconvolution of broadband SmKS phases. Phys. Earth Planet. Inter. 155, 104-119 (2006).
    • (2006) Phys. Earth Planet. Inter. , vol.155 , pp. 104-119
    • Eaton, D.W.1    Kendall, J.-M.2
  • 33
    • 0027035655 scopus 로고
    • Melting of the Fe-FeO and the Fe-FeS systems at high-pressure -constraints on core temperatures
    • Boehler, R. Melting of the Fe-FeO and the Fe-FeS systems at high-pressure -constraints on core temperatures. Earth Planet. Sci. Lett. 111, 217-227 (1992).
    • (1992) Earth Planet. Sci. Lett. , vol.111 , pp. 217-227
    • Boehler, R.1
  • 34
    • 0027449638 scopus 로고
    • Temperatures in the Earth's core frommelting-pointmeasurements of iron at high static pressures
    • Boehler, R. Temperatures in the Earth's core frommelting- pointmeasurements of iron at high static pressures. Nature 363, 534-536 (1993).
    • (1993) Nature , vol.363 , pp. 534-536
    • Boehler, R.1
  • 36
    • 0025235869 scopus 로고
    • Internally consistent thermodynamic data and equilibrium phase relations for compounds in the system MgO-SiO2 at high pressure and high temperature
    • Fei, Y., Saxena, S. K. & Navrotsky, A. Internally consistent thermodynamic data and equilibrium phase relations for compounds in the system MgO-SiO2 at high pressure and high temperature. J. Geophys. Res. 95, 6915-6928 (1990).
    • (1990) J. Geophys. Res. , vol.95 , pp. 6915-6928
    • Fei, Y.1    Saxena, S.K.2    Navrotsky, A.3
  • 37
    • 0026294264 scopus 로고
    • High-temperature elastic constant data on minerals relevant to geophysics
    • Anderson, O. L., Isaak, D. & Oda, H. High-temperature elastic constant data on minerals relevant to geophysics. Rev. Geophys. 30, 57-90 (1992).
    • (1992) Rev. Geophys. , vol.30 , pp. 57-90
    • Anderson, O.L.1    Isaak, D.2    Oda, H.3
  • 38
    • 0026446660 scopus 로고
    • Calculation of elastic properties from thermodynamic equation of state principles
    • Bina, C. R. & Helffrich, G. Calculation of elastic properties from thermodynamic equation of state principles. Annu. Rev. Earth Planet. Sci. 20, 527-552 (1992).
    • (1992) Annu. Rev. Earth Planet. Sci. , vol.20 , pp. 527-552
    • Bina, C.R.1    Helffrich, G.2
  • 39
    • 35548947123 scopus 로고    scopus 로고
    • Structure of eutectic Fe-FeS melts to pressures up to 17 GPa: Implications for planetary cores
    • Morard, G. et al. Structure of eutectic Fe-FeS melts to pressures up to 17 GPa: implications for planetary cores. Earth Planet. Sci. Lett. 263, 128-139 (2007).
    • (2007) Earth Planet. Sci. Lett. , vol.263 , pp. 128-139
    • Morard, G.1
  • 40
    • 0027532705 scopus 로고
    • A thermodynamic theory of the Grüneisen ratioatextreme conditions: MgOasanexample
    • Anderson, O. L., Oda, H., Chopelas, A. & Isaak, D. A thermodynamic theory of the Grüneisen ratioatextreme conditions: MgOasanexample. Phys.Chem.Miner. 19, 369-380 (1993).
    • (1993) Phys.Chem.Miner. , vol.19 , pp. 369-380
    • Anderson, O.L.1    Oda, H.2    Chopelas, A.3    Isaak, D.4


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