Heat partitioning in metal-silicate plumes during Earth differentiation

Earth and Planetary Science Letters

Volumn 304, Issue 3-4, 2011, Pages 577-586

  King, Christina ^a   Olson, Peter ^a  

^a JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

Conduits; Core formation; Diapirs; Earth's core; Metal silicate plumes; Viscous dissipation

Indexed keywords

CONDUITS; CORE FORMATION; DIAPIRS; EARTH'S CORE; METAL-SILICATE PLUMES; VISCOUS DISSIPATION;

DROPS; FORCED CONVECTION; HEATING; LIQUID METALS; MATHEMATICAL MODELS; PHASE EQUILIBRIA; POTENTIAL ENERGY; SILICATES; TECTONICS; VISCOUS FLOW;

METALS;

CORE-MANTLE BOUNDARY; DIAPIR; DISSIPATION; FLUID DYNAMICS; MANTLE PROCESS; MARS; PARTITIONING; PLANETESIMAL; POTENTIAL ENERGY; SILICATE;

EID: 79953039744     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2011.02.037     Document Type: Article

References (44)

1. Albarede F.V. Accretion history of the terrestrial planets and dynamic implications. Nature 2009, 461:1227-1233.
2. Anderson O.L. The power balance at the core-mantle boundary. Phys. Earth Planet. Int. 2002, 131:1-17.
3. Arkani-Hamed J., Olson P. Giant impacts, core stratification, and failure of the Martian dynamo. J. Geophys. Res. 2010, 115:E07012. 10.1029/2010JE003579.
4. Beutl M., Pottlacher G., Jager H. Thermophysical properties of liquid iron. Int. J. Thermo. 1994, 15:1323-1331.
5. Boehler R., Ross M. Properties of rocks and minerals-high-pressure melting. Treatise on Geophysics 2007, vol 2:527-541. Elsevier B.V, ch 18. G.D. Price, G. Schubert (Eds.).
6. Buffett B.A. The thermal state of Earth's core. Science 2003, 299:1675-1677.
7. Canup R.M. Simulations of a late lunar-forming impact. Icarus 2004, 168:433-456. 10.1016/j.icarus.2003.09.028.
8. Corgne A., Keshav S., Wood B.J., McDonough W.F., Fei W. Metal-silicate partitioning and constraints on core composition and oxygen fugacity during Earth accretion. Geochim. Cosmochim. Acta 2008, 72:574-589.
9. Dahl T.W., Stevenson D.J. Turbulent mixing of metal and silicate during planet accretion and interpretation of the Hf-W chronometer. Earth Planet. Sci. Lett. 2010, 295:177-186.
10. Farnetani C.G., Hofmann A.W. Dynamics and internal structure of a lower mantle plume conduit. Earth Planet. Sci. Lett. 2009, 282:314-322.
11. Golabek G.J., Gerya T.V., Kaus B.J.P., Ziethe R., Tackley P.J. Rheological controls on the terrestrial core formation mechanism. Geochem. Geophys. Geosyst. 2009, 10:1-31. Q11007.
12. Halliday A.N. A young Moon-forming giant impact at 70-110Ma accompanied by late-staged mixing, core formation and degassing of the Earth. Phil. Trans. Roy. Soc. A 2008, 366:4163-4181. 10.1098/rsta.2008.0209.
13. Halliday A.N., Wood B.J. The composition and major reservoirs of the Earth around the time of the moon-forming giant impact. Treatise on Geophysics 2007, vol 9:13-50. Elsevier B.V, ch 2. D.J. Stevenson (Ed.).
14. Hayward A.T.J. Precise determination of the isothermal compressibility of mercury at 20°C and 192 bar. J. Phys. D Appl. Phys. 1971, 4:951-955.
15. Höink T., Schmalzl J., Hansen U. Dynamics of metal-silicate separation in a terrestrial magma ocean. Geochem. Geophys. Geosyst. 2006, 7:1-24. Q09008.
16. Karato S., Murthy V.R. Core formation and chemical equilibrium in the Earth-I. Physical considerations. Phys. Earth Planet. Int. 1997, 100:61-79.
17. Ke Y., Solomatov V.S. Coupled core-mantle thermal evolution of early Mars. J. Geophys. Res. 2009, 144:1-12.
18. Labrosse S., Hernlund J.W., Coltice N. A crystallizing dense magma ocean at the base of the Earth's mantle. Nature 2007, 450:866-869.
19. Lay T., Hernlund J., Buffett B.A. Core-mantle boundary heat flow. Nat. Geosci. 2008, 1:25-30.
20. Li J., Agee C.B. The effect of pressure, temperature, oxygen fugacity and composition on partitioning of nickel and cobalt between liquid Fe-Ni-S alloy and liquid silicate: implications for the Earth's core formation. Geochim. Cosmochim. Acta 2001, 65:1821-1832.
21. Monteux J., Ricard Y., Coltice N., Dubuffet F., Ulvrova M. A model of metal-silicate separation on growing planets. Earth Planet. Sci. Lett. 2009, 287:353-362.
22. Nimmo F. Energetic of the core. Treatise on Geophysics 2007, vol 8:31-65. Elsevier B.V, ch 2. P. Olson (Ed.).
23. Nimmo F., Agnor C.B. Isotopic outcomes of N-body accretion simulations: constraints on equilibration processes during large impacts from Hf/W observations. Earth Planet. Sci. Lett. 2006, 243:26-43.
24. Olson P., Weeraratne D. Experiments on metal-silicate plumes and core formation. Phil. Trans. Roy. Soc. A 2008, 366:4253-4271. 10.1098/rsta.2008.0194.
25. Pahlevan K., Stevenson D.J. Equilibration in the aftermath of the lunar-forming giant impact. Earth Planet. Sci. Lett. 2007, 262:438-449.
26. Reese C.C., Solomatov V.S. Early martian dynamo generation due to giant impacts. Icarus 2010, 207:82-90.
27. Ricard Y., Sramek O., Dubuffet F. A multi-pase model of runaway core-mantle segregation in embryos. Earth Planet. Sci. Lett. 2009, 284:144-150.
28. Righter K., Drake M.J. Constraints on the depth of an early terrestrial magma ocean. Meteorit. Planet. Sci. 2001, 36:173.
29. Righter K., Drake M.J., Yaxley G. Prediction of siderophile element metal-silicate partition coefficients to 20GPa and 2800°C: the effects of pressure, temperature, oxygen fugacity, and silicate and metallic melt compositions. Phys. Earth Planet. Int. 1997, 100:115-134.
30. Rubie D.C., Melosh H.J., Reid J.E., Liebske C., Righter K. Mechanisms of metal-silicate equilibration in the terrestrial magma ocean. Earth Planet. Sci. Lett. 2003, 205:239-255.
31. Rubie D.C., Nimmo F., Melosh H.J. Formation of Earth's core. Treatise on Geophysics 2007, vol 9:51-90. Elsevier B.V, ch 3. G. Schubert (Ed.).
32. Rudge J.F., Kleine T., Bourdon B. Broad bounds on Earth's accretion and core formation constrained by geochemical models. Nat. Geosci. 2010, 3:439-443.
33. Samuel H., Tackley P.J. Dynamics of core formation and equilibration by negative diapirism. Geochem. Geophys. Geosyst. 2008, 9:1-15. Q06011.
34. Samuel H., Tackley P.J., Evonuk M. Heat partitioning in terrestrial planets during core formation by negative diapirism. Earth Planet. Sci. Lett. 2010, 290:13-19.
35. Sasaki T., Abe Y. Rayleigh-Taylor instability after giant impacts: imperfect equilibrium of the Hf-W system and its effect on the core formation age. Earth Planet. Space 2007, 59:1035-1045.
36. Shannon M.C., Agee C.B. Percolation of core melts at lower mantle conditions. Science 1998, 280:1059-1061.
37. Solomatov V.S. Fluid dynamics of magma oceans. Origin of the Earth and Moon 2000, Univ. Arizona Press, Tucson. R. Canup, K. Righter (Eds.).
38. Stevenson D.J. A planetary perspective on the deep Earth. Nature 2008, 451:261-265.
39. Tonks W.B., Melosh H.J. Magma ocean formation due to giant impacts. J. Geophys. Res. 1993, 98:5319-5333.
40. Turcotte D.L., Schubert G. Geodynamics 2002, Cambridge University Press, New York. 2nd ed.
41. Walter M.J., Tronnes R.G. Early Earth differentiation. Earth Planet. Sci. Lett. 2004, 225:253-269.
42. Wood B.J., Walter M.J., Wade J. Accretion of the Earth and segregation of its core. Nature 2006, 441:825-833.
43. Yoshino T., Walter M.J., Katsura T. Core formation in planetesimals triggered by permeable flow. Nature 2003, 422:154-157.
44. Ziethe R., Spohn T. Two-dimensional stokes flow around a heated cylinder: a possible application for diapirs in the mantle. J. Geophys. Res. 2007, 112:B09403. 10.1029/2006JB004789.