Giant impacts, core stratification, and failure of the Martian dynamo

Journal of Geophysical Research: Planets

Volumn 115, Issue 7, 2010, Pages

  Arkani Hamed, Jafar ^a,b   Olson, Peter ^c  

^a UNIVERSITY OF TORONTO   (Canada)

^b MCGILL UNIVERSITY   (Canada)

^c JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BASIN EVOLUTION; CORE ANALYSIS; CORE-MANTLE BOUNDARY; GEODYNAMO; HEAT FLUX; HEATING; IMPACT; MANTLE STRUCTURE; MARS; THERMAL CONVECTION;

EID: 77955357208     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/2010JE003579     Document Type: Article

References (46)

1. Acuña, M. H., et al. (1999), Global distribution of crustal magnetization discovered by the Mars Global Surveyor MAG/ER experiment, Science, 284, 790-793.
2. Aki, K., and P. G. Richards (2002), Quantitative Seismology, 2nd ed., University Science Books, Sausalito, Calif.
3. Antretter, M., M. Fuller, E. Scott, M. Jackson, B. Moskowitz, and P. Solheid (2003), Paleomagnetic record of Martian meteorite ALH84001, J. Geophys. Res., 108(E6), 5049, doi:10.1029/2002JE001979.
4. Arkani-Hamed, J. (2004), Timing of the Martian core dynamo, J. Geophys. Res., 109, E03006, doi:10.1029/2003JE002195.
5. Arkani-Hamed, J. (2005a), On the possibility of single-domain/ pseudosingledomain magnetic particles existing in the lower crust of Mars: Source of the strong magnetic anomalies, J. Geophys. Res., 110, E12009, doi:10.1029/ 2005JE002535.
6. Arkani-Hamed, J. (2005b), Magnetic crust of Mars, J. Geophys. Res., 110, E08005, doi:10.1029/2004JE002397. (Pubitemid 41419615)
7. Arkani-Hamed, J. (2009), Did tidal deformation power the core dynamo of Mars?, Icarus, 201, 31-43.
8. Arkani-Hamed, J., and L. Riendler (2002), Stress differences in the Martian lithosphere: Constraints on the thermal state of Mars, J. Geophys. Res., 107(E12), 5119, doi:10.1029/2002JE001851.
9. Arkani-Hamed, J., and P. Olson (2010), Giant impact stratification of the Martian core, Geophys. Res. Lett., 37, L02201, doi:10.1029/ 2009GL041417.
10. Arkani-Hamed, J., B. Seyed-Mahmoud, K. D. Aldridge, and R. E. Baker (2008), Tidal excitation of elliptical instability in the Martian core: Possible mechanism for generating the core dynamo, J. Geophys. Res., 113, E06003, doi:10.1029/2007JE002982.
11. Bjorkman, M. D., and K. A. Holsapple (1987), Velocity scaling impact melt volume, Int. J. Eng., 5, 155-163.
12. Breuer, D., and T. Spohn (2003), Early plate tectonics versus single-plate tectonics on Mars: Evidence from magnetic field history and crust evolution, J. Geophys. Res., 108(E7), 5072, doi:10.1029/2002JE001999.
13. Christensen, U. R., and J. Wicht (2007), Numerical dynamo simulations, in Treatise on Geophysics, edited by P. Olson, vol.8, pp. 245-282, Elsevier.
14. Frey, H. (2008), Ages of very large impact basins on Mars: Implications for the late heavy bombardment in the inner solar system, Geophys. Res. Lett., 35, L13203, doi:10.1029/2008GL033515.
15. Frey, H. V., J. H. Roark, K. M. Shockey, E. L. Frey, and S. E. H. Sakimoto (2002), Ancient lowlands on Mars, Geophys. Res. Lett., 29(10), 1384, doi:10.1029/2001GL013832.
16. Ghods, A., and J. Arkani-Hamed (2007), Impact-induced convection as the main mechanism for formation of lunar mare basalts, J. Geophys. Res., 112, E03005, doi:10.1029/2006JE002709. (Pubitemid 46864453)
17. Ghods, A., and J. Arkani-Hamed (2008), Impact-induced melting of the martian mantle, Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract P33B-1452.
18. Gubbins, D., T. G. Masters, and J. A. Jacobs (1979), Thermal evolution of the Earth's core, Geophys. J. R. Astron. Soc., 59, 57-99.
19. Han, Z., and X. Yin (1993), Shock Dynamics, Kluwer Acad., Dordrecht/ Boston/London.
20. Hauck, S. A., II, and R. J. Phillips (2002), Thermal and crustal evolution of Mars, J. Geophys. Res., 107(E7), 5052, doi:10.1029/2001JE001801.
21. Holsapple, K. A. (1993), The scaling of impact processes in planetary sciences, Annu. Rev. Earth Planet. Sci., 21, 333-373.
22. Johnson, C. L., and R. J. Phillips (2005), Evolution of the Tharsis region of Mars: Insights from magnetic field observations, Earth Planet. Sci. Lett., 230, 241-254.
23. King, E. M., S. Stellmach, J. Noir, U. Hansen and J. M. Aurnou (2009), Boundary layer control of rotating convection systems, Nature, 457, doi:10.1038/nature07647.
24. Kuang, W., W. Jiang, and T. Wang (2008), Sudden termination of Martian dynamo: Implications from subcritical dynamo simulations, Geophys. Res. Lett., 35, L14204, doi:10.1029/2008GL034183.
25. Lillis, R. J., H. V. Frey, and M. Manga (2008), Rapid decrease in Martian crustal magnetization in the Noachian era: Implications for the dynamo and climate of early Mars, Geophys. Res. Lett., 35, L14203, doi:10.1029/ 2008GL034338.
26. Louzada, K. L., and S. T. Stewart (2009), Effects of planet curvature and crust on the shock pressure field around impact basins, Geophys. Res. Lett., 36, L15203, doi:10.1029/2009GL037869.
27. Melosh, H. J. (1989), Impact Cratering: A Geologic Process, Oxford Univ. Press, New York.
28. Mitani, N. K. (2003), Numerical simulations of shock attenuation in solids and reevaluation of scaling law, J. Geophys. Res., 108(E1), 5003, doi:10.1029/2000JE001472.
29. Neukum, G., and D. V. Wise (1976), Mars: A standard crater curve and possible new time scale, Science, 194, 1381-1387.
30. Nimmo, F., and D. J. Stevenson (2000), Influence of early plate tectonics on the thermal evolution and magnetic field of Mars, J. Geophys. Res., 105, 11,969-11,979.
31. Pierazzo, E., A. M. Vickery, and H. J. Melosh (1997), A reevaluation of impact melt production, Icarus, 127, 408-423.
32. Pruis, M. J., and K. L. Tanaka (1995), The Martian Northern Plains did not result from plate tectonics: Houston, Texas, Lunar and Planetary Institute, Lunar Planet. Sci., XXVI, 1147.
33. Roberts, J. H., R. J. Lillis, and M. Manga (2009), Giant impacts on early Mars and the cessation of the Martian dynamo, J. Geophys. Res., 114, E04009, doi:10.1029/2008JE003287.
34. Schubert, G., S. C. Solomon, D. L. Turcotte, M. J. Drake, and N. H. Sleep (1992), Origin and thermal evolution of Mars, in Mars, edited by H. H. Kieffer et al., pp. 147-183, Univ. of Ariz. Press, Tucson.
35. Schubert, G., C. T. Russell, and W. B. Moore (2000), Timing of the Martian dynamo, Nature, 408, 666-669.
36. Secco, R. A. (1995), Viscosity of the outer core, in Handbook of Physical Constants, edited by T. J. Ahrens, pp. 218-226, AGU, Washington.
37. Senft, L. E., and S. T. Stewart (2009), Dynamic fault weakening and the formation of large impact craters, Earth Planet. Sci. Lett., 287, 471-482.
38. Stevenson, D. J. (1987), Limits on lateral density and velocity variations in the Earth's outer core, Geophys. J. R. Astron. Soc., 88, 311-319.
39. Stevenson, D. J., T. Spohn, and G. Schubert (1983), Magnetism and thermal evolution of the terrestrial planets, Icarus, 54, 466-489.
40. Watters, W. A., M. T. Zuber, and B. H. Hager (2009), Thermal perturbations caused by large impacts and consequences for mantle convection, J. Geophys. Res., 114, E02001, doi:10.1029/2007JE002964.
41. Weiss, B. P., et al. (2002), Records of an ancient Martian magnetic field in ALH84001, Earth Planet. Sci. Lett., 201, 449-463.
42. Weiss, B. P., L. E. Fong, H. Vali, E. A. Lima, and F. J. Baudenbacher (2008), Paleointensity of the ancient Martian magnetic field, Geophys. Res. Lett., 35, L23207, doi:10.1029/2008GL035585.
43. Williams, J.-P., and F. Nimmo (2004), Thermal evolution of the Martian core: Implications for an early dynamo, Geology, 32, 97-100, doi:10.1130/G19975.1. (Pubitemid 38306244)
44. Yoder, C. F., A. S. Konopliv, D. N. Yuan, E. M. Standish, and W. M. Folkner (2003), Fluid core size of Mars from detection of the solar tide, Science, 300, 299-303.
45. Young, R. E., and G. Schubert (1974), Temperature inside Mars: Is the core liquid or solid?, Geophys. Res. Lett., 1.
46. Zuber, M. (2001), The crust and mantle of Mars, Nature, 412, 220-227.