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Volumn 223, Issue , 2013, Pages 2-7

Causes and consequences of outer core stratification

Author keywords

Core; Geodynamo; Geomagnetism; Seismology

Indexed keywords

BARODIFFUSION; CORE; CORE MATERIAL; CORE-MANTLE BOUNDARY; GEODYNAMO; LAYERED CORES; LIGHT ELEMENTS; TEMPERATURE DIFFERENCES;

EID: 84884719558     PISSN: 00319201     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pepi.2013.07.005     Document Type: Article
Times cited : (40)

References (59)
  • 1
    • 77955505929 scopus 로고    scopus 로고
    • Melting-induced stratification above the Earth's inner core due to convective translation
    • Alboussière T., Deguen R., Melzani M. Melting-induced stratification above the Earth's inner core due to convective translation. Nature 2010, 465:744-747.
    • (2010) Nature , vol.465 , pp. 744-747
    • Alboussière, T.1    Deguen, R.2    Melzani, M.3
  • 2
    • 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. 2010, 180:59-65.
    • (2010) Phys. Earth Planet. Inter. , vol.180 , pp. 59-65
    • Alexandrakis, C.1    Eaton, D.W.2
  • 3
    • 0037091636 scopus 로고    scopus 로고
    • Iron under Earth's core conditions: liquid state thermodynamics and high-pressure melting curve from ab-initio calculations
    • Alfè 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 2002, 65. 10.1103/PhysRevB.65.165118.
    • (2002) Phys. Rev. B , vol.65
    • Alfè, D.1    Price, G.D.2    Gillan, M.J.3
  • 4
    • 34247551617 scopus 로고    scopus 로고
    • Partitioning of FeO between magnesiowüstite and liquid iron at high pressures and temperatures: implications for the composition of the Earth's outer core
    • Asahara Y., Frost D.J., Rubie D.C. Partitioning of FeO between magnesiowüstite and liquid iron at high pressures and temperatures: implications for the composition of the Earth's outer core. Earth Planet. Sci. Lett. 2007, 257:435-449.
    • (2007) Earth Planet. Sci. Lett. , vol.257 , pp. 435-449
    • Asahara, Y.1    Frost, D.J.2    Rubie, D.C.3
  • 5
    • 49649121245 scopus 로고    scopus 로고
    • Thermochemical flows couple the Earth's inner core growth to mantle heterogeneity
    • Aubert J., Amit H., Hulot G., Olson P. Thermochemical flows couple the Earth's inner core growth to mantle heterogeneity. Nature 2008, 454:758-761.
    • (2008) Nature , vol.454 , pp. 758-761
    • Aubert, J.1    Amit, H.2    Hulot, G.3    Olson, P.4
  • 6
    • 0347664090 scopus 로고
    • Turbulent buoyant convection from a source in a confined region
    • Baines W.D., Turner J.S. Turbulent buoyant convection from a source in a confined region. J. Fluid Mech. 1969, 37:51-80.
    • (1969) J. Fluid Mech. , vol.37 , pp. 51-80
    • Baines, W.D.1    Turner, J.S.2
  • 7
    • 0001261361 scopus 로고
    • Elasticity and constitution of the Earth's interior
    • Birch F. Elasticity and constitution of the Earth's interior. J. Geophys. Res. 1952, 57:227-286.
    • (1952) J. Geophys. Res. , vol.57 , pp. 227-286
    • Birch, F.1
  • 8
    • 0029324785 scopus 로고
    • Simultaneous optimization of thermochemical data for liquid iron alloys containing C, N, Ti, Si, Mn, S and P
    • Bouchard D., Bale C.W. Simultaneous optimization of thermochemical data for liquid iron alloys containing C, N, Ti, Si, Mn, S and P. Metall. Mater. Trans. B 1995, 26B:467-484.
    • (1995) Metall. Mater. Trans. B , vol.26 B , pp. 467-484
    • Bouchard, D.1    Bale, C.W.2
  • 9
    • 33644878849 scopus 로고    scopus 로고
    • Formation of the stratified ocean of the core
    • Braginsky S. Formation of the stratified ocean of the core. Earth Planet. Sci. Lett. 2006, 243:650-656.
    • (2006) Earth Planet. Sci. Lett. , vol.243 , pp. 650-656
    • Braginsky, S.1
  • 10
    • 79960898124 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. 2010, 115. 10.1029/2009JB006751.
    • (2010) J. Geophys. Res. , vol.115
    • Buffett, B.A.1    Seagle, C.T.2
  • 11
    • 84891194786 scopus 로고
    • Thermal instabilities in rapidly rotating systems
    • Busse F.H. Thermal instabilities in rapidly rotating systems. J. Fluid Mech. 1970, 44:441-460.
    • (1970) J. Fluid Mech. , vol.44 , pp. 441-460
    • Busse, F.H.1
  • 12
    • 1842865625 scopus 로고    scopus 로고
    • Simulations of a late lunar-forming impact
    • Canup R. Simulations of a late lunar-forming impact. Icarus 2004, 168:433-456.
    • (2004) Icarus , vol.168 , pp. 433-456
    • Canup, R.1
  • 13
    • 0035899403 scopus 로고    scopus 로고
    • Origin of the Moon in a giant impact near the end of the Earth's formation
    • Canup R., Asphaug E. Origin of the Moon in a giant impact near the end of the Earth's formation. Nature 2001, 412:708-712.
    • (2001) Nature , vol.412 , pp. 708-712
    • Canup, R.1    Asphaug, E.2
  • 14
    • 33845881424 scopus 로고    scopus 로고
    • A deep dynamo generating Mercury's magnetic field
    • Christensen U. A deep dynamo generating Mercury's magnetic field. Nature 2006, 444:1056-1058.
    • (2006) Nature , vol.444 , pp. 1056-1058
    • Christensen, U.1
  • 15
    • 44149103332 scopus 로고    scopus 로고
    • Models of magnetic field generation in partly stable planetary cores: applications to Mercury and Saturn
    • Christensen U.R., Wicht J. Models of magnetic field generation in partly stable planetary cores: applications to Mercury and Saturn. Icarus 2008, 196:16-34.
    • (2008) Icarus , vol.196 , pp. 16-34
    • Christensen, U.R.1    Wicht, J.2
  • 16
    • 42149175892 scopus 로고    scopus 로고
    • C- and S-rich molten alloy immiscibility and core formation of planetesimals
    • Corgne A., Wood B.J., Fei Y. C- and S-rich molten alloy immiscibility and core formation of planetesimals. Geochim. Cosmochim. Acta 2008, 72:2409-2416.
    • (2008) Geochim. Cosmochim. Acta , vol.72 , pp. 2409-2416
    • Corgne, A.1    Wood, B.J.2    Fei, Y.3
  • 17
    • 0026448745 scopus 로고
    • Mantle convection
    • Davies G., Richards M.A. Mantle convection. J. Geol. 1992, 100:151-206.
    • (1992) J. Geol. , vol.100 , pp. 151-206
    • Davies, G.1    Richards, M.A.2
  • 18
    • 0036295603 scopus 로고    scopus 로고
    • Self-diffusion in liquid Fe at high pressure
    • Dobson D.P. Self-diffusion in liquid Fe at high pressure. Phys. Earth Planet. Inter. 2002, 130:271-284.
    • (2002) Phys. Earth Planet. Inter. , vol.130 , pp. 271-284
    • Dobson, D.P.1
  • 20
    • 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. 2006, 119:104-119.
    • (2006) Phys. Earth Planet. Inter. , vol.119 , pp. 104-119
    • Eaton, D.W.1    Kendall, J.-M.2
  • 21
    • 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 1981, 289:393-394.
    • (1981) Nature , vol.289 , pp. 393-394
    • Fearn, D.R.1    Loper, D.E.2
  • 24
    • 34547968218 scopus 로고    scopus 로고
    • Geomagnetic constraints on stratification at the top of Earth's core
    • Gubbins D. Geomagnetic constraints on stratification at the top of Earth's core. Earth Planets Space 2007, 59:661-664.
    • (2007) Earth Planets Space , vol.59 , pp. 661-664
    • Gubbins, D.1
  • 25
    • 84871791889 scopus 로고    scopus 로고
    • The stratified layer at the core-mantle boundary caused by barodiffusion of oxygen, sulphur and silicon
    • Gubbins D., Davies C.J. The stratified layer at the core-mantle boundary caused by barodiffusion of oxygen, sulphur and silicon. Phys. Earth Planet. Inter. 2013, 215:21-28.
    • (2013) Phys. Earth Planet. Inter. , vol.215 , pp. 21-28
    • Gubbins, D.1    Davies, C.J.2
  • 26
    • 11144295210 scopus 로고    scopus 로고
    • Seismological constraints on core composition from Fe-O-S liquid immiscibility
    • Helffrich G., Kaneshima S. Seismological constraints on core composition from Fe-O-S liquid immiscibility. Science 2004, 306:2239-2242.
    • (2004) Science , vol.306 , pp. 2239-2242
    • Helffrich, G.1    Kaneshima, S.2
  • 27
    • 78650077057 scopus 로고    scopus 로고
    • Outer-core compositional stratification from observed core wave speed profiles
    • Helffrich G., Kaneshima S. Outer-core compositional stratification from observed core wave speed profiles. Nature 2010, 468:807-810.
    • (2010) Nature , vol.468 , pp. 807-810
    • Helffrich, G.1    Kaneshima, S.2
  • 28
    • 0030292256 scopus 로고    scopus 로고
    • Mapping heterogeneity of the uppermost inner core using two pairs of core phases
    • Kaneshima S. Mapping heterogeneity of the uppermost inner core using two pairs of core phases. Geophys. Res. Lett. 1996, 23:3075-3078.
    • (1996) Geophys. Res. Lett. , vol.23 , pp. 3075-3078
    • Kaneshima, S.1
  • 29
    • 84877958840 scopus 로고    scopus 로고
    • Vp structure of the outermost core derived from analyzing large scale array data of SmKS waves
    • Kaneshima S., Helffrich G. Vp structure of the outermost core derived from analyzing large scale array data of SmKS waves. Geophys. J. Int. 2013, 93:1537-1555.
    • (2013) Geophys. J. Int. , vol.93 , pp. 1537-1555
    • Kaneshima, S.1    Helffrich, G.2
  • 31
    • 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. 1991, 105:429-465.
    • (1991) Geophys. J. Int. , vol.105 , pp. 429-465
    • Kennett, B.L.N.1    Engdahl, E.R.2
  • 32
    • 0028813015 scopus 로고
    • Constraints on seismic velocities in the Earth from traveltimes
    • Kennett B.L.N., Engdahl E.R., Buland R. Constraints on seismic velocities in the Earth from traveltimes. Geophys. J. Int. 1995, 122:108-124.
    • (1995) Geophys. J. Int. , vol.122 , pp. 108-124
    • Kennett, B.L.N.1    Engdahl, E.R.2    Buland, R.3
  • 34
    • 33751563299 scopus 로고    scopus 로고
    • A post-perovskite lens and D heat flux beneath the central Pacific
    • Lay T., Hernlund J., Garnero E.J., Thorne M.S. A post-perovskite lens and D heat flux beneath the central Pacific. Science 2006, 314:1272-1276.
    • (2006) Science , vol.314 , pp. 1272-1276
    • Lay, T.1    Hernlund, J.2    Garnero, E.J.3    Thorne, M.S.4
  • 35
    • 0025592968 scopus 로고
    • The stably-stratified outermost core revisited
    • Lay T., Young C. The stably-stratified outermost core revisited. Geophys. Res. Lett. 1990, 17:2001-2004.
    • (1990) Geophys. Res. Lett. , vol.17 , pp. 2001-2004
    • Lay, T.1    Young, C.2
  • 36
    • 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. 2003, 140:159-167.
    • (2003) Phys. Earth Planet. Inter. , vol.140 , pp. 159-167
    • Masters, G.1    Gubbins, D.2
  • 37
    • 0033929723 scopus 로고    scopus 로고
    • Origin of thermohaline staircases
    • Merryfield W.J. Origin of thermohaline staircases. J. Phys. Ocean. 2000, 30:1046-1068.
    • (2000) J. Phys. Ocean. , vol.30 , pp. 1046-1068
    • Merryfield, W.J.1
  • 39
    • 0029729262 scopus 로고    scopus 로고
    • How to reconcile body-wave and normal-mode reference earth models
    • Montagner J.-P., Kennett B.L.N. How to reconcile body-wave and normal-mode reference earth models. Geophys. J. Int. 1996, 125:229-248.
    • (1996) Geophys. J. Int. , vol.125 , pp. 229-248
    • Montagner, J.-P.1    Kennett, B.L.N.2
  • 40
    • 77952885507 scopus 로고    scopus 로고
    • Pressure-temperature cartography of Fe-S-Si immiscible system
    • Morard G., Katsura T. Pressure-temperature cartography of Fe-S-Si immiscible system. Geochim. Cosmochim. Acta 2010, 74:3659-3667.
    • (2010) Geochim. Cosmochim. Acta , vol.74 , pp. 3659-3667
    • Morard, G.1    Katsura, T.2
  • 41
    • 80053217741 scopus 로고    scopus 로고
    • Effect of a stably stratified layer near the outer boundary in numerical simulations of a magnetohydrodynamic dynamo in a rotating spherical shell and its implications for Earth's core
    • Nakagawa T. Effect of a stably stratified layer near the outer boundary in numerical simulations of a magnetohydrodynamic dynamo in a rotating spherical shell and its implications for Earth's core. Phys. Earth Planet. Inter. 2011, 187:342-352.
    • (2011) Phys. Earth Planet. Inter. , vol.187 , pp. 342-352
    • Nakagawa, T.1
  • 42
    • 45049084089 scopus 로고    scopus 로고
    • Lateral variations in CMB heat flux and deep mantle seismic velocity caused by a thermal-chemical-phase boundary layer in 3D spherical convection
    • Nakagawa T., Tackley P.J. Lateral variations in CMB heat flux and deep mantle seismic velocity caused by a thermal-chemical-phase boundary layer in 3D spherical convection. Earth Planet. Sci. Lett. 2008, 271:348-358.
    • (2008) Earth Planet. Sci. Lett. , vol.271 , pp. 348-358
    • Nakagawa, T.1    Tackley, P.J.2
  • 43
    • 77956497687 scopus 로고    scopus 로고
    • In situ viscometry of high-pressure melts in the Paris-Edinburgh cell: application to liquid FeS
    • Perrillat J.-P., Mezouar M., Garbarino G., Bauchau S. In situ viscometry of high-pressure melts in the Paris-Edinburgh cell: application to liquid FeS. High Press. Res. 2010, 30:415-423.
    • (2010) High Press. Res. , vol.30 , pp. 415-423
    • Perrillat, J.-P.1    Mezouar, M.2    Garbarino, G.3    Bauchau, S.4
  • 44
    • 0028585511 scopus 로고
    • Light elements in the Earth's outer core: a critical review
    • Poirier J.-P. Light elements in the Earth's outer core: a critical review. Phys. Earth Planet. Inter. 1994, 85:319-337.
    • (1994) Phys. Earth Planet. Inter. , vol.85 , pp. 319-337
    • Poirier, J.-P.1
  • 45
    • 84861070606 scopus 로고    scopus 로고
    • Thermal and electrical conductivity of iron at Earth's core conditions
    • Pozzo M., Davies C., Gubbins D., Alfè D. Thermal and electrical conductivity of iron at Earth's core conditions. Nature 2012, 485:355-358.
    • (2012) Nature , vol.485 , pp. 355-358
    • Pozzo, M.1    Davies, C.2    Gubbins, D.3    Alfè, D.4
  • 46
    • 79956193770 scopus 로고    scopus 로고
    • Geodesy constraints on the interior structure and composition of Mars
    • Rivoldini A., van Hoolst T., Verhoeven O., Mocquet A., Dehant V. Geodesy constraints on the interior structure and composition of Mars. Icarus 2011, 213:451-472.
    • (2011) Icarus , vol.213 , pp. 451-472
    • Rivoldini, A.1    van Hoolst, T.2    Verhoeven, O.3    Mocquet, A.4    Dehant, V.5
  • 47
    • 0025629673 scopus 로고
    • The density and shear velocity contrast at the inner core boundary
    • Shearer P.M., Masters T.G. The density and shear velocity contrast at the inner core boundary. Geophys. J. Int. 1990, 102:491-498.
    • (1990) Geophys. J. Int. , vol.102 , pp. 491-498
    • Shearer, P.M.1    Masters, T.G.2
  • 48
    • 0024485818 scopus 로고
    • Ellipticity and density at the inner core boundary from subcritical PKIKP and PcP data
    • Souriau A., Souriau M. Ellipticity and density at the inner core boundary from subcritical PKIKP and PcP data. Geophys. J. Int. 1989, 98:39-54.
    • (1989) Geophys. J. Int. , vol.98 , pp. 39-54
    • Souriau, A.1    Souriau, M.2
  • 49
    • 0004252690 scopus 로고
    • Brookfield Press, Brisbane, Australia
    • Stacey F. Physics of the Earth 1992, Brookfield Press, Brisbane, Australia.
    • (1992) Physics of the Earth
    • Stacey, F.1
  • 50
    • 0343384116 scopus 로고    scopus 로고
    • Gravitational energy of core evolution: implications for thermal history and geodynamo power
    • Stacey F.D., Stacey C.H.B. Gravitational energy of core evolution: implications for thermal history and geodynamo power. Phys. Earth Planet. Int. 1999, 110:83-93.
    • (1999) Phys. Earth Planet. Int. , vol.110 , pp. 83-93
    • Stacey, F.D.1    Stacey, C.H.B.2
  • 51
    • 0037055952 scopus 로고    scopus 로고
    • Rotating thermal convection experiments in a hemispherical shell with heterogeneous boundary heat flux: implications for the Earth's core
    • Sumita I., Olson P. Rotating thermal convection experiments in a hemispherical shell with heterogeneous boundary heat flux: implications for the Earth's core. J. Geophys. Res. 2002, 107. 10.1029/2001JB000548.
    • (2002) J. Geophys. Res. , vol.107
    • Sumita, I.1    Olson, P.2
  • 52
    • 0034980801 scopus 로고    scopus 로고
    • Penetration of columnar convection into an outer stably stratified layer in rapidly rotating spherical fluid shells
    • Takehiro S.-I., Lister J.R. Penetration of columnar convection into an outer stably stratified layer in rapidly rotating spherical fluid shells. Earth Planet. Sci. Lett. 2001, 187:357-366.
    • (2001) Earth Planet. Sci. Lett. , vol.187 , pp. 357-366
    • Takehiro, S.-I.1    Lister, J.R.2
  • 53
    • 1642529024 scopus 로고    scopus 로고
    • Seismic detectability of anomalous structure at the top of the Earth's outer core with broadband array analysis of SmKS phases
    • Tanaka S. Seismic detectability of anomalous structure at the top of the Earth's outer core with broadband array analysis of SmKS phases. Phys. Earth Planet. Inter. 2004, 141:141-152.
    • (2004) Phys. Earth Planet. Inter. , vol.141 , pp. 141-152
    • Tanaka, S.1
  • 54
    • 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. Phys. Earth Planet. Inter. 2007, 259:486-499.
    • (2007) Phys. Earth Planet. Inter. , vol.259 , pp. 486-499
    • Tanaka, S.1
  • 55
    • 0027833651 scopus 로고
    • Velocities and chemical stratification in the outermost core
    • Tanaka S., Hamaguchi H. Velocities and chemical stratification in the outermost core. J. Geomag. Geoelectr. 1993, 45:1287-1301.
    • (1993) J. Geomag. Geoelectr. , vol.45 , pp. 1287-1301
    • Tanaka, S.1    Hamaguchi, H.2
  • 56
    • 0030752131 scopus 로고    scopus 로고
    • Degree one heterogeneity and hemispherical variation of anisotropy in the inner core from PKP(BC)-PKP(DF) times
    • Tanaka S., Hamaguchi H. Degree one heterogeneity and hemispherical variation of anisotropy in the inner core from PKP(BC)-PKP(DF) times. J. Geophys. Res. 1997, 102:2925-2938.
    • (1997) J. Geophys. Res. , vol.102 , pp. 2925-2938
    • Tanaka, S.1    Hamaguchi, H.2
  • 57
    • 35948952383 scopus 로고    scopus 로고
    • In situ observation and determination of liquid immiscibility in the Fe-O-S melt at 3GPa using a synchrotron X-ray radiographic technique
    • Tsuno K., Terasaki H., Ohtani E., Suzuki A., Asahara Y., Nishida K., Sakamaki T., Funakoshi K., Kikegawa T. In situ observation and determination of liquid immiscibility in the Fe-O-S melt at 3GPa using a synchrotron X-ray radiographic technique. Geophys. Res. Lett. 2007, 34. 10.1029/2007GL030750.
    • (2007) Geophys. Res. Lett. , vol.34
    • Tsuno, K.1    Terasaki, H.2    Ohtani, E.3    Suzuki, A.4    Asahara, Y.5    Nishida, K.6    Sakamaki, T.7    Funakoshi, K.8    Kikegawa, T.9
  • 58
    • 0343953353 scopus 로고    scopus 로고
    • First principles calculations on the diffusivity and viscosity of liquid Fe-S at experimentally accessible conditions
    • Vocadlo L., Alfé D., Price G.D., Gillan M. First principles calculations on the diffusivity and viscosity of liquid Fe-S at experimentally accessible conditions. Phys. Earth Planet. Inter. 2000, 120:145-152.
    • (2000) Phys. Earth Planet. Inter. , vol.120 , pp. 145-152
    • Vocadlo, L.1    Alfé, D.2    Price, G.D.3    Gillan, M.4
  • 59
    • 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 2006, 441:825-833.
    • (2006) Nature , vol.441 , pp. 825-833
    • Wood, B.J.1    Walter, M.J.2    Wade, J.3


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