Bulk composition and early differentiation of Mars

Journal of Geophysical Research: Planets

Volumn 112, Issue 3, 2007, Pages

  Taylor, G Jeffrey ^a   Boynton, William V ^b   Bruckner J ^c   Wanke H ^c   Dreibus, G ^c   Kerry, Kristopher E ^b   Keller, John M ^b   Reedy, Robert C ^d   Evans, Larry G ^e   Starr, Richard D ^f   Squyres, Steven W ^g   Karunatillake, Suniti ^g   Gasnault, Olivier ^h   Maurice, S ^h   d'Uston, C ^h   Englert, P ^a   Dohm, James M ^b   Baker, V ^b   Hamara, Dave ^b   Janes, Daniel M ^b   Sprague, Ann L ^b   Kim, Kyeong J ^b   Drake, D ⁱ   more..

^a UNIVERSITY OF HAWAII   (United States)

^b UNIVERSITY OF ARIZONA   (United States)

^c MAX PLANCK INSTITUTE FOR CHEMISTRY   (Germany)

^d UNIVERSITY OF NEW MEXICO   (United States)

^e Computer Sciences Corporation ^*  (United States)

^f CATHOLIC UNIVERSITY OF AMERICA   (United States)

^g Cornell University ^*  (United States)

^h CNRS   (France)

ⁱ TECHSOURCE INC   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BASALT; CHEMICAL COMPOSITION; GAMMA RAY SPECTROMETRY; IRON; MARS; MARTIAN METEORITE; POTASSIUM; THORIUM;

EID: 34249907526     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/2005JE002645     Document Type: Article

References (112)

1. Agee, C. B., and D. S. Draper (2004), Experimental constraints on the origin of Martian meteorites and the composition of the Martian mantle, Earth Planet. Sci. Lett., 224, 415-429.
2. Bandfield, J. L., V. E. Hamilton, and P. R. Christensen (2000), A global view of Martian surface compositions from MGS-TES, Science, 287, 1626-1630.
3. Bandfield, J. L., V. E. Hamilton, P. R. Christensen, and H. Y. McSween Jr. (2004), Identification of quartzofeldspathic materials on Mars, J. Geophys. Res., 109, E10009, doi:10.1029/2004JE002290.
4. Beattie, P. (1993), The generation of uranium series disequilibria by partial melting of spinel peridotite: Constraints from partitioning studies, Earth. Planet. Sci. Lett., 117, 379-391.
5. Bertka, C. M., and Y. Fei (1998a), Density profile of an SNC model Martian interior and the moment-of-inertia factor of Mars, Earth Planet. Sci. Lett., 157, 79-88.
6. Bertka, C. M., and Y. Fei (1998b), Implications of Mars Pathfinder data for the accretion history of the terrestrial planets, Science, 281, 1838-1840.
7. Blichert-Toft, J., J. D. Gleason, P. Telouk, and F. Albarede (1999), The Lu-Hf isotope geochemistry of shergottites and the evolution of the Martian mantle-crust system, Earth. Planet. Sci. Lett., 173, 25-39.
8. Borg, L. E., and D. S. Draper (2003), A petrogenetic model for the origin and compositional variation of the Martian basaltic meteorites, Meteorol. Planet. Sci., 38, 1713-1731.
9. Borg, L. E., L. E. Nyquist, L. A. Taylor, H. Wiesmann, and C.-Y. Shih (1997), Constraints on Martian differentiation processes from Rb-Sr and Sm-Nd isotopic analyses of the basaltic shergottites QUE 94201, Geochim. Cosmochim. Acta, 61, 4915-4931.
10. Borg, L. E., L. E. Nyquist, H. Weissman, C.-Y. Shih, and Y. Reese (2003), The age of Dar al Gani 476 and the differentiation history of the Martian meteorites inferred from their radiogenic isotopic systematics, Geochim. Cosmochim. Acta, 67, 3519-3536.
11. Boynton, W. V., et al. (2004), The Mars Odyssey gamma-ray spectrometer instrument suite, Space Sci. Rev., 10, 37-83.
12. Bridges, J., D. C. Catling, J. M. Saxton, T. D. Swindle, I. C. Lyon, and M. M. Grady (2001), Alteration assemblages in Martian meteorites: Implications for near-surface processes, Space Sci. Rev., 96, 365-392.
13. Brückner, J., G. Dreibus, R. Rieder, and H. Wänke (2003), Refined data of alpha proton X-ray spectrometer analyses of soils and rocks at the Mars Pathfinder site: Implications for surface chemistry, J. Geophys. Res., 108(E12), 8094, doi:10.1029/2003JE002060.
14. Burns, R. (1993), Rates and mechanisms of chemical weathering of ferro-magnesian silicate minerals on Mars, Geochim. Cosmochim. Acta, 57, 4555-4574.
15. Campbell, I. H., P. L. Roeder, and J. M. Dixon (1978), Plagioclase buoyancy in basaltic liquids as determined with a centrifuge furnace, Contrib. Mineral. Petrol., 67, 369-377.
16. Chambers, J. E. (2001), Making more terrestrial planets, Icarus, 152, 205-224.
17. Christensen, P. R., et al. (2005), Evidence for magmatic evolution and diversity on Mars from infrared observations, Nature, 436, 504-509, doi:10.1038/nature03639.
18. Clark, B. E., A. K. Baird, R. J. Weldon, D. M. Tsusaki, L. Schnabel, and M. P. Candelaria (1982), Chemical composition of Martian fines, J. Geophys. Res., 87, 10,059-10,067.
19. Condie, K. (1993), Chemical composition and evolution of the upper continental crust: Contrasting results from surface samples and shales, Chem. Geol., 104, 1-37.
20. Crisp, J. A. (1984), Rates of magma emplacement and volcanic output, J. Volcanol. Geotherm. Res., 20, 177-211.
21. Crown, D. A., K. H. Price, and R. Greeley (1992), Geologic evolution of the east rim of the Hellas basin, Mars, Icarus, 100, 1-25.
22. Dohm, J. M., J. C. Ferris, V. R. Baker, R. C. Anderson, T. M. Hare, R. G. Strom, N. G. Barlow, K. L. Tanaka, J. E. Klemaszewski, and D. H. Scott (2001), Ancient drainage basin of the Tharsis region, Mars: Potential source for outflow channel systems and putative oceans or paleolakes, J. Geophys. Res., 106, 32,943-32,958.
23. Dohm, J. M., K. Kerry, J. Keller, V. R. Baker, W. Boynton, S. Maruyama, and R. C. Anderson (2005), Mars geological province designations for the interpretation of GRS data, Lunar Planet. Sci. Conf. [CD-ROM], XXXVI, Abstract 1567.
24. Drake, M. J., and K. Righter (2000), Determining the composition of the Earth, Nature, 416, 39-44.
25. Draper, D. S., L. E. Borg, and C. B. Agee (2005), Crystallization of a Martian magma ocean and the formation of shergottites source regions: A less Fe-rich Mars?, Lunar Planet. Sci., XXXVI, Abstract 1429.
26. Dreibus, G., and H. Wänke (1984), Accretion of the Earth and the inner planets, Proc. Int. Geol. Conf, 27th(11), 1-20.
27. Elkins-Tanton, L. T., and E. M. Parmentier (2004), Consequences of high crystallinity for the evolution of the lunar magma ocean: Trapped plagioclase, Lunar Planet. Sci. Conf., XXXV, Abstract 1678.
28. Elkins-Tanton, L. T., E. M. Parmentier, and P. C. Hess (2003), Magma ocean fractional crystallization and cumulate overturn in terrestrial planets: Implications for Mars, Meteorit. Planet. Sci., 38, 1753-1771.
29. Elkins-Tanton, L. T., P. C. Hess, and E. M. Parmentier (2005), Possible formation of ancient crust on Mars through magma ocean processes, J. Geophys. Res., 110, E12S01, doi:10.1029/2005JE002480.
30. Elliott, T., T. Plank, A. Zindler, W. White, and B. Bourdon (1997), Element transport from slab to volcanic front at the Mariana arc, J. Geophys. Res., 102, 14,991-15,019.
31. 142 Nd isotope systematics in the SNC meteorites, Geochim. Cosmochim. Acta, 69, 4557-4571.
32. Gaetani, G. A., and T. L. Grove (1998), The influence of water on melting of mantle peridotite, Contrib. Mineral. Petrol., 131, 323-346.
33. Gaillardet, J., B. Dupre, and C. J. Allegre (1999), Geochemistry of large river suspended sediments: Silicate weathering or recycling tracer?, Geochim. Cosmochim. Acta., 63, 4037-4051.
34. Ganapathy, R., and E. Anders (1974), Bulk compositions of the Moon and Earth, estimated from meteorites, Proc. Lunar Sci. Conf., 5th, 1181-1206.
35. Gellert, R., et al. (2004), Chemistry of rocks and soils in Gusev crater from the alpha particle X-ray spectrometer, Science, 305, 829-832.
36. Goodrich, C. A., C. D. K. Herd, and L. A. Taylor (2003), Spinels and oxygen fugacity in olivine-phyric and lherzolitic shergottites, Meteorit. Planet. Sci., 38, 1773-1792.
37. Gromet, L. P., R. F. Dymek, L. A. Haskin, and R. L. Korotev (1984), The "North American Shale Composite": Its compilation, major and trace element characteristics, Geochim. Cosmochim. Acta, 48, 2469-2482.
38. 2O-rich fluid component in the generation of primitive basaltic andesites and andesites from the Mt. Shasta region, N. California, Contrib. Mineral. Petrol., 142, 375-396.
39. Halliday, A. N., D.-C. Lee, S. Tommasini, G. R. Davies, C. R. Paslick, J. G. Fitton, and D. E. James (1995), Incompatible trace elements in OIB and MORB and source enrichment in the sub-oceanic mantle, Earth Planet. Sci. Lett., 133, 379-395.
40. Hamilton, V. E., P. R. Christensen, H. Y. McSween Jr., and J. L. Bandfield (2003), Searching for the source regions of Martian meteorites using MGS TES: Integrating Martian meteorites into the global distribution of volcanic materials on Mars, Meteorol. Planet. Sci., 38, 871-886.
41. 144Nd in SNC meteorites, Science, 267, 213-217.
42. Hartmann, W. K., and G. Neukum (2001), Cratering chronology and the evolution of Mars, Space Sci. Rev., 96, 165-194.
43. Hartmann, W. K., J. Anguita, M. A. de la Casa, D. C. Berman, and E. V. Ryan (2001), Martian cratering 7: The role of impact gardening, Icarus, 149, 37-53.
44. Hauck, S. A., and R. J. Phillips (2002), Thermal and crustal evolution of Mars, J. Geophys. Res., 107(E7), 5052, doi:10.1029 /2001JE001801.
45. Hauri, E. H., T. P. Wagner, and T. L. Grove (1994), Experimental and natural partitioning of Th, U, Pb, and other trace elements between garnet, clinopyroxene, and basaltic melts, Chem. Geol., 117, 149-166.
46. Herd, C. D. K. (2003), The oxygen fugacity of olivine-phyric Martian basalts and the components within the mantle and crust of Mars, Meteorit. Planet. Sci., 38, 1793-1805.
47. Herd, C. D. K., L. E. Borg, J. H. Jones, and J. J. Papike (2002), Oxygen fugacity and geochemical variations in the Martian basalts: Implications for Martian basalt petrogenesis and the oxidation state of the upper mantle of Mars, Geochim. Cosmochim. Acta, 66, 2025-2036.
48. Hess, P. (2002), Origins of the Martian crust and mantle, paper presented at Workshop on Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of the Martian Meteorites, Lunar and Planet. Inst., Houston, Tex.
49. Hurowitz, J. A., N. J. Tosca, S. M. McLennan, and the Athena Science Team (2005), Experimental basalt alteration at low-pH: Implications for weathering relationships on Mars, Proc. Lunar Planet. Sci. Conf, 36th, Abstract 2025.
50. Jagoutz, E., H. Palme, H. Baddenhausen, K. Blum, M. Cendales, G. Dreibus, B. Spettel, V. Lorenz, and H. Wänke (1979), The abundances of major, minor, and trace elements in the Earth's mantle as derived from primitive ultramafic nodules, Proc. Lunar Planet. Sci. Conf., 10th, 2031-2050.
51. Jolliff, B. L., J. L. Gillis, L. A. Haskin, R. L. Korotev, and M. A. Wieczorek (2000), Major lunar crustal terranes: Surface expressions and crust-mantle origins, J. Geophys. Res., 105, 4197-4216.
52. Jones, J. H. (1995), Experimental trace element partitioning, in A Handbook of Physical Constants: Rock Physics and Phase Relations, pp. 73-104, AGU, Washington, D. C.
53. Karunatillake, S. K., et al. (2006), Composition of northern low-albedo regions of Mars: Insights from the Mars Odyssey gamma ray spectrometer, J. Geophys. Res., doi:10.1029/2006JE002675, in press.
54. Keller, J., et al. (2006), Equatorial and midlatitude distribution of chlorine measured by Mars Odyssey GRS, J. Geophys. Res., doi:10.1029/2006JE002679, in press.
55. Kiefer, W. S. (2003), Melting in the Martian mantle: Shergottite formation and implications for present-day mantle convection on Mars, Meteorit. Planet. Sci., 38, 1815-1832.
56. Kleine, T., C. Munker, K. Metzer, and H. Palme (2002), Rapid accretion and early core formation on asteroids and the terrestrial planets from Hf-W chronometry, Nature, 418, 952-955.
57. Kitts, K., and K. Lodders (1998), Survey and evaluation of eucrite bulk compositions, Meteorit. Planet. Sci., 33, A197-A213.
58. Lee, D.-C., and A. N. Halliday (1997), Core formation on Mars and differentiated asteroids, Nature, 388, 854-857.
59. Lodders, K. (1998), A survey of shergottites, nahklite and chassigny meteorites whole-rock compositions, Meteorit. Planet. Sci., 33, A183-A190.
60. Lodders, K. (2000), An oxygen isotope mixing model for the accretion and composition ofrocky planets, Space Sci. Rev., 92, 341-354.
61. Lodders, K., and B. Fegley Jr. (1997), An oxygen isotope model for the composition of Mars, Icarus, 126, 373-394.
62. Longhi, J. (2003), A new view of lunar ferroan anorthosites: Postmagma ocean petrogenesis, J. Geophys. Res., 108(E8), 5083, doi:10.1029/ 2002JE001941.
63. Longhi, J., E. Knittle, J. R. Holloway, and H. Wänke (1992), The bulk composition, mineralogy, and internal structure of Mars, in Mars, edited by H. H. Kieffer et al., pp. 184-208, Univ. of Ariz. Press, Tucson.
64. Marsh, B. D. (1988), Crystal capture, sorting, and retention in convecting magma, Bull. Geol. Soc. Am., 100, 1720-1737.
65. McDonough, W. F., and S.-S. Sun (1995), The composition of the Earth, Chem. Geol., 120, 223-253.
66. McLennan, S. M. (2001), Crustal heat production and the thermal evolution of Mars, Geophys. Res. Lett., 28, 4019-4022.
67. McLennan, S. M. (2003), Large-ion lithophile element fractionation during the early differentiation of Mars and the composition of the Martian primitive mantle, Meteorit. Planet. Sci., 38, 895-904.
68. McLennan, S. M., W. B. Nance, and S. R. Taylor (1980), Rare earth element-thorium correlations in sedimentary rocks, and the composition of the continental crust, Geochim. Cosmochim. Acta, 44, 1833-1839.
69. McSween, H. Y., Jr. (2003), Mars, in Treatise on Geochemistry, vol. 1, Meteorites, Comets, and Planets, edited by A. Davis, pp. 601-621, Elsevier, New York.
70. Melson, W. G., T. Vallier, T. L. Wright, G. Byerly, and J. Nelen (1976), Chemical diversity of abyssal volcanic glass erupted along Pacific, Atlantic, and Indian Ocean sea-floor spreading centers, in The Geophysics of the Pacific Ocean Basin and Its Margin, Geophys. Monogr. Ser., vol. 19, pp. 351-367, AGU, Washington, D. C.
71. Meyer, C., Jr. (2003), Mars meteorite compendium, Rep.27672, rev. B, NASA Johnson Space Cent., Houston, Tex. (Available at http:// curator.sc.nasa.gov/antmet/mmc/mmc.htm)
72. Minitti, M. E., and M. J. Rutherford (2000), Genesis of the Mars Pathfinder "sulfur-free" rock from SNC parental liquids, Geochim. Cosmochim. Acta, 64, 2535-2547.
73. Mittlefehldt, D., and M. Lindstrom (1993), Geochemistry and petrology of a suite of ten Yamato HED meteorites, Proc. Natl. Inst. Polar Res. Symp. Antarct. Meteorites, 6, 268-292.
74. Morgan, J. W., and E. Anders (1979), Chemical composition of Mars, Geochim. Cosmochim. Acta, 43, 1601-1610.
75. Nekvasil, H., J. Filiberto, M. Whitacker, and D. H. Lindsley (2003), Magmas parental to the Chassigny meteorite: New considerations, paper presented at Sixth International Conference on Mars, Lunar and Planet. Inst., Pasadena, Calif.
76. Norman, M. D. (1999), The composition and thickness of the crust of Mars estimated from rare earth elements and neodymium-isotopics of Martian meteorites, Geochim. Cosmochim. Acta, 34, 439-449.
77. Norman, M. D. (2002), Thickness and composition of the Martian crust revisited: Implications of an ultradepleted mantle with a Nd isotopic composition like that of QUE94201, Lunar Planet. Sci., XXXIII, Abstract 1175.
78. Philpotts, A. R., J. Shi, and C. Brustman (1998), Role of plagioclase crystal chains in the differentiation of partly crystallized basaltic magma, Nature, 395, 343-346.
79. Plank, T., and C. H. Langmuir (1998), The chemical composition of subducting sediment and its consequences for the crust and mantle, Chem. Geol., 145, 325-394.
80. Prettyman, T., W. C. Feldman, D. J. Lawrence, G. W. McKinney, A. B. Binder, R. C. Elphic, O. M. Gasnault, S. Maurice, and K. R. Moore (2002), Library least squares analysis of Lunar Prospector gamma ray spectra, Lunar Planet. Sci. [CD-ROM], XXXII, Abstract 2012.
81. Rieder, R., et al. (2004), Chemistry of rocks and soils at Meridiani Planum from the alpha particle X-ray spectrometer, Science, 306, 1746-1749.
82. Robinson, M. S., and G. J. Taylor (2001), Ferrous oxide in Mercury's crust and mantle, Meteorit. Planet. Sci., 36, 841-847.
83. Rubin, A. E., P. H. Warren, J. P. Greenwood, R. S. Verish, L. A. Leshin, R. L. Hervig, R. N. Clayton, and T. K. Mayeda (2000), Petrology of Los Angeles: A new basaltic shergottites find, Geology, 28, 1011-1014.
84. Sanloup, C., A. Jambon, and P. Gillet (1999), A simple chondritic model of Mars, Phys. Earth Planet. Inter., 112, 43-54.
85. Sautter, V., J. A. Barrat, A. Jambon, J. P. Lorand, P. Gillet, M. Javoy, J. L. Joron, and M. Lesourd (2002), A new Martian meteorite from Morocco: The nakhlite northwest Africa 817, Earth Planet. Sci. Lett., 195, 223-238.
86. Squyres, S. W., et al. (2004), In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars, Science, 306, 1709-1714.
87. Sun, S.-S., and W. F. McDonough (1989), Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes, in Magmatism in the Ocean Basins, edited by A. D. Saunders and M. J. Norry, Spec. Publ. Geol. Soc. Am., 42, 313-345.
88. Surkov, Y. A., F. F. Kimozov, V. N. Glazov, A. G. Dunchenko, L. P. Tatsy, and O. P. Sobornov (1987), Uranium, thorium, and potassium in the Venusian rocks at the landing sites of Vega 1 and 2, Proc. Lunar Planet. Sci. Conf. 17th, Part 2, J. Geophys. Res., 92, E537-E540.
89. Surkov, Y. A., L. P. Moskaleva, M. Y. Zolotov, V. P. Kharynkova, O. S. Manvelyan, G. G. Smimov, and A. V. Golovin (1994), Phobos-2 data on Martian surface geochemistry, Geochem. Int., 31, 50-58.
90. Tanaka, K. L., M. Chapman, and D. H. Scott (1992), Geologic map of the Elysium region of Mars, U.S. Geol. Surv. Misc. Invest. Ser. Map, I-2147, scale 1:5,000,000.
91. Taylor, G. J., and E. R. D. Scott (2004), Mercury, in Treatise on Geochemstry, vol. 1, Meteorites, Comets, and Planets, edited by A. Davis, pp. 1477-485, Elsevier, New York.
92. Taylor, G. J., et al. (2006), Variations in K/Th on Mars, J. Geophys. Res., doi:10.1029/2006JE002676, in press.
93. Taylor, S. R. (1992), Solar System Evolution: A New Perspective, 307 pp., Cambridge Univ. Press, New York.
94. Taylor, S. R., and S. M. McLennan (1985), The Continental Crust: Its Composition and Evolution, 312 pp., Blackwell Sci., Malden, Mass.
95. Trombka, J. I., et al. (1992), Analysis of Phobos Mission gamma ray spectra from Mars, Proc. Lunar Planet. Sci. Conf., 22nd, 23-29.
96. Turner, S., C. Hawkesworth, P. van Calsteren, E. Heath, R. Macdonald, and S. Black (1996), U-series isotopes and destructive plate margin magma genesis in the Lesser Antilles, Earth Planet. Sci. Lett., 142, 191-207.
97. Van der Molen, I., and M. S. Paterson (1979), Experimental deformation of partially-melted granite, Contrib. Mineral. Petrol., 70, 299-318.
98. Vroon, P. Z., M. J. van Bergen, G. J. Klaver, and W. M. White (1995), Strontium, neodymium, and lead isotopic and trace-element signatures of the east Indonesian sediments: Provenance and implications for Banda Arc magma genesis, Geochim. Cosmochim. Acta, 59, 2573-2598.
99. Wänke, H., and G. Dreibus (1988), Chemical composition and accretion history of the terrestrial planets, Philos. Trans. R. Soc. London, Ser A, 325, 545-557.
100. Wänke, H., and G. Dreibus (1994), Chemistry and accretion history of Mars, Philos. Trans. R. Soc. London, Ser. A, 349, 285-293.
101. Wänke, H., J. Brückner, G. Dreibus, R. Rieder, and I. Ryabchikov (2001), Chemical composition of rocks and soils at the Pathfinder site, Space Sci. Rev., 96, 317-330.
102. Warren, P. H. (1985), The magma ocean concept and lunar evolution, Annu. Rev. Earth Planet. Sci., 13, 201-240.
103. Warren, P. H. (1989), KREEP: Major element diversity, trace-element uniformity (almost), in Workshop on Moon in Transition: Apollo 14, KREEP and Evolved Lunar Rocks, edited by G. J. Taylor and P. H. Warren, Tech. Rep. 89-03, pp. 149-153, Lunar and Planet. Inst., Houston, Tex.
104. Warren, P. H. (1997), MgO-FeO mass balance constraints and a more detailed model for the relationship between eucrites and diogenites, Meteorit. Planet. Sci., 32, 945-963.
105. Warren, P. H. (2003), The Moon, in Treatise on Geochemistry, vol. 1, Meteorites, Comets, and Planets, edited by A. Davis, pp. 559-599, Elsevier, New York.
106. Warren, P. H., and J. T. Wasson (1979), The origin of KREEP, Rev. Geophys., 17, 73-88.
107. Wetherill, G. W. (1994), The provenance of the terrestrial planets, Geochim. Cosmochim. Acta, 58, 4513-4520.
108. Wetherill, G. W., and G. R. Stewart (1993), Formation of planetary embryos: Effects of fragmentation, low relative velocity, and independent variation of eccentricity and inclination, Icarus, 106, 190-209.
109. Wieczorek, M. A., and M. T. Zuber (2004), The thickness of the Martian crust: Improved constraints from geoid-to-topography ratios, J. Geophys. Res., 109, E01009, doi:10.1029/2003JE002153.
110. Wright, T. L., and R. T. Okamura (1977), Cooling and crystallization of tholeiitic basalt, 1965 Makaopuhi lava lake, Hawaii, U.S. Geol. Surv. Prof Pap., 1004, 78 pp.
111. Yen, A. S., et al. (2005), An integrated view of the chemistry and mineralogy of Martian soils, Nature, 436, 49-54.
112. Yin, Q., S. B. Jacobsen, K. Yamashita, J. Blichert-Toft, P. Telouk, and F. Albarede (2002), A short timescale for terrestrial planet formation from Hf-W chronometry of meteorites, Nature, 418, 949-952.