Thermal core-mantle coupling in an early lunar dynamo: Implications for a global magnetic field and magnetosphere of the early Moon

Geophysical Research Letters

Volumn 36, Issue 24, 2009, Pages

  Takahashi, Futoshi ^a   Tsunakawa, Hideo ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CORE-MANTLE BOUNDARY; CRUSTAL MAGNETIC FIELDS; CRUSTAL MAGNETIZATION; CRUSTAL THICKNESS; MAGNETIC-FIELD INTENSITY; NUMERICAL SIMULATION; ORBIT EVOLUTION; PALEOMAGNETIC DATA; SURFACE FIELD; THEORETICAL MODELS; THERMAL CORE;

COMPUTER SIMULATION; ELECTRIC GENERATORS; INTERACTIVE DEVICES; MAGNETIC FIELDS; MAGNETOSPHERE;

MOON;

CORE-MANTLE BOUNDARY; GEODYNAMO; HEAT FLUX; MAGNETIC FIELD; MAGNETIZATION; MAGNETOSPHERE; MOON; NUMERICAL MODEL; PALEOMAGNETISM;

EID: 75649112566     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2009GL041221     Document Type: Article

References (29)

1. Cisowski, S. M., D. W. Collinson, S. K. Runcorn, and A. A. Stephenson (1983), A review of lunar paleointensity data and implications for the origin of lunar magnetism, J. Geophys. Res., 88, 691-704.
2. Coleman, P. J., C. T. Russell, L. R. Sharp, and G. Schubert (1972), Pre-liminary mapping of the lunar magnetic field, Phys. Earth Planet. Inter., 6, 167-174.
3. Fuller, M, (1974), Lunar magnetism, Rev. Geophys. Space Phys., 12, 23-70.
4. Garric-Bethell, I., B. P. Weiss, D. L. Shuster, and J. Buz (2009), Early lunar magnetism, Science, 323, 356-359.
5. Goldreich, P. (1966), History of the lunar orbit, Rev. Geophys., 4, 411 -439.
6. Hartmann, W. K., and D. R. Davis (1975), Satellite-sized planetesimals and lunar origin, Icarus, 24, 504-515.
7. Hess, P. C, and E. M. Parmentier (1995), A model for the thermal and chemical evolution of the Moon's interior: Implications for the onset of mare volcanism. Earth Planet. Sci. Lett., 134, 501-514.
8. Hood, L. L. (1986), Geophysical, constraints on the lunar interior, in Origin of the Moon, edited by W. K. Hartmann, R. J. Phillips, and G. J. Taylor, pp. 361-410, Lunar and Planet. Inst., Houston, Tex.
9. Hood, L. L., and A. Viekery (1.984), Magnetic field amplification and generation in hypervelocity meteoroid impacts with application to lunar paleomagnetism, J. Geophys. Res., 89, C211-C223.
10. Hood, L. L., D. Mitchell, R. P. Lin, M. H. Acuna, and A. B. Binder (1999), Initial measurements of the lunar induced magnetic dipole moment using Lunar Prospector magnetometer data, Geophys. Res. Lett., 26, 2327-2330.
11. Khan, A., K. Mosegaard, J. G. Williams, and P. Lognonné (2004), Does the Moon possess a molten core? Probing the deep lunar interior using results from LLR and Lunar Prospector, J. Geophys. Res., 109, E09007, doi:10.1029/2004JE002294.
12. King, E. M., S. Stellmach, J. Noir, U. Hansen, and J. M. Aurnou (2009), Boundary layer control of rotating convection systems, Nature, 457, 301-304.
13. Konrad, W., and T. Spohn (1997), Thermal history of the Moon: Implica-tions for an early core dynamo and post-accretional magmatism, Adv. Space Res., 19, 1511-1521. (Pubitemid 127420899)
14. Lawrence, K., C. Johnson, L. Tauxe, and J. Gee (2008), Lunar paleointen-sity measurements: Implications for lunar magnetic evolution, Phys. Earth Planet. Inter., 168, 7.1.-87.
15. Olson, P., and U. R. Christensen (2002), The time-averaged magnetic field in numerical dynamos with non-uniform boundary heat flow, Geophys. J. Int., 151, 809-823. (Pubitemid 35420224)
16. Olson, P., and U. R. Christensen (2006), Dipole moment scaling for convection-driven planetary dynamos, Earth Planet. Sci Lett, 250, 561-571. (Pubitemid 44509732)
17. Ozima, M., K. Seki, N. Terada, Y. N. Miura, F. A. Podosek, and H. Shinagawa (2005), Terrestrial nitrogen and noble gases in lunar soils, Nature, 436, 655-659. (Pubitemid 41117261)
18. Richmond, N. C, and L. L. Hood (2008), A preliminary global map of the vector lunar crustal magnetic field based on Lunar Prospector mag-netometer data, J. Geophys. Res., 113, E020.10, doi:.10.1029/2007JE002933.
19. Schubert, G., D. L. Turcotte, and P. Olson (2001), Mantle Convection in the Earth and Planets, 940 pp., Cambridge Univ. Press, Cambridge.
20. Stanley, S., S. Elkins-Tanton, M. T. Zuber, and E. M. Parmentier (2008), Mars' paleomagnetic field as the result of a single-hemisphere dynamo, Science, 321, 1822-1825.
21. Stegman, D. R., A. M. Jellinek, S. A. Zatman, J. R. Baumgardner, and M. A. Richards (2003), An early lunar core dynamo driven by thermoohemical mantle convection, Nature, 421, 143-146.
22. Takahashi, F., and M. Matsushima (2006), Dipolar and non-dipolar dyna-mos in a thin shell geometry with implications for the magnetic field of Mercury, Geophys. Res. Lett., 33, L.10202, doi:10.1029/2006GL025792.
23. Takahashi, F., M, Matsushima, and Y. Honkura (2005), Simulations of a quasi-Taylor state geomagnetic fiend including polarity reversals on the Earth Simulator, Science, 309, 459-461.
24. Takahashi, F., H. Tsunakawa, M. Matsushima, N. Mochizuki, and Y. Honkura (2008a), Effects of thermally heterogeneous structure in the lowermost mantle on the geomagnetic field strength, Earth Planet. Sci. Lett., 272, 738-746.
25. Takahashi, F., M, Matsushima, and Y. Honkura (2008b), Scale variability in convection-driven MHD dynamos at low Ekman number, Phys. Earth Planet., 167,168-178.
26. Tarduno, J. A., R. D. Cottrell, M. K. Watkeys, and D. Bauch (2007), Geomagnetic field strength 3.2 billion years ago recorded by single silicate crystals, Nature, 446, 657-660.
27. Wicht, J., M. Mandea, F. Takahashi, U. R. Christensen, M. Matsushima, and B. Langlais (2007), The origin of Mercury's internal magnetic field, Space Sci. Rev., 132, 261-290.
28. Williams, J. G., D. H. Boggs, C. F. Yoder, J. T. Ratcliff, and J. O. Dickey (2001), Lunar rotational dissipation in solid body and molten core, J. Geophys. Res., 106, 27,933-27,968.
29. Zhong, S., E. M. Parmentier, and M. T. Zuber (2000), A dynamic origin for the global asymmetry of lunar mare basalts, Earth Planet. Sci Lett, 177, 131-140. (Pubitemid 30318573)