Oxygen Isotopic Compositions of Asteroidal Materials Returned from Itokawa by the Hayabusa Mission
Abstract
Meteorite studies suggest that each solar system object has a unique oxygen isotopic composition. Chondrites, the most primitive of meteorites, have been believed to be derived from asteroids, but oxygen isotopic compositions of asteroids themselves have not been established. We measured, using secondary ion mass spectrometry, oxygen isotopic compositions of rock particles from asteroid 25143 Itokawa returned by the Hayabusa spacecraft. Compositions of the particles are depleted in 16O relative to terrestrial materials and indicate that Itokawa, an S-type asteroid, is one of the sources of the LL or L group of equilibrated ordinary chondrites. This is a direct oxygen-isotope link between chondrites and their parent asteroid.
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References and Notes
1
D. J. Tholen, M. A. Barucci, in Asteroids II, W. F. Bottke, A. Cellino, P. Paolicchi, R. P. Binzel, Eds. (University of Arizona Press, Tucson, AZ, 1989), pp. 298–315.
2
Brown P., et al., The fall of the Grimsby meteorite-I: Fireball dynamics and orbit from radar, video, and infrasound records. Meteorit. Planet. Sci. 46, 339 (2011).
3
A. N. Krot, K. Keil, C. A. Goodrich, E. R. D. Scott, M. K. Weisberg, in Meteorites, Comets, and Planets, A. M. Davis, Ed. (Elsevier, Amsterdam, 2005), pp. 83–128.
4
R. N. Clayton, in Meteorites, Comets, and Planets, A. M. Davis, Ed. (Elsevier, Amsterdam, 2005), pp. 129–142.
5
Clayton R. N., Solar system: Self-shielding in the solar nebula. Nature 415, 860 (2002).
6
Yurimoto H., Kuramoto K., Molecular cloud origin for the oxygen isotope heterogeneity in the solar system. Science 305, 1763 (2004).
7
Lyons J. R., Young E. D., CO self-shielding as the origin of oxygen isotope anomalies in the early solar nebula. Nature 435, 317 (2005).
8
K. Kuramoto, H. Yurimoto, in Chondrites and the Protoplanetary Disk, A. N. Krot, E. R. D. Scott, B. Reipurth, Eds. (ASP Conference Series, 2005), vol. 341, pp. 181–192.
9
Martian meteorites are thought to be martian rocks, but definitive proof will require a direct measurement of the oxygen isotopic composition of Mars.
10
Wiechert U., et al., Oxygen isotopes and the moon-forming giant impact. Science 294, 345 (2001).
11
Abell P. A., Vilas F., Jarvis K. S., Gaffey M. J., Kelley M. S., Mineralogical composition of (25143) Itokawa 1998 SF36 from visible and near-infrared reflectance spectroscopy: Evidence for partial melting. Meteorit. Planet. Sci. 42, 2165 (2007).
12
Abe M., et al., Near-infrared spectral results of asteroid Itokawa from the Hayabusa spacecraft. Science 312, 1334 (2006).
13
Nakamura T., et al., Science 333, 1113 (2011).
14
All samples collected by the Hayabusa spacecraft and analyzed here have been characterized by means of x-ray microtomography, x-ray diffraction analysis, x-ray fluorescence analysis, scanning electron microscopy, and electron probe microanalysis before isotope measurements were made (13). For our analysis, chemically equilibrated grains were prepared. Chemically less equilibrated grains described in (13) have not been included because a precise chemical characterization was still in process, and they were not ready for this study. The less equilibrated grains were not common in the Hayabusa sample return capsule (13). We mounted each grain at the center of an epoxy disk and polished the surface according to the processes established for the preliminary examination. We coated a thin layer of gold with a thickness of 60 nm on the samples for secondary ion mass spectrometry.
15
Yurimoto H., Nagashima K., Kunihiro T., High precision isotope micro-imaging of materials. Appl. Surf. Sci. 203-204, 793 (2003).
16
Clayton R. N., Oxygen Isotopes in Meteorites. Annu. Rev. Earth Planet. Sci. 21, 115 (1993).
17
Clayton R. N., Mayeda T. K., Goswami J. N., Olsen E. J., Oxygen isotope studies of ordinary chondrites. Geochim. Cosmochim. Acta 55, 2317 (1991).
18
Greenwood R. C., Franchi I. A., Jambon A., Buchanan P. C., Widespread magma oceans on asteroidal bodies in the early Solar System. Nature 435, 916 (2005).
19
R. N. Clayton, S. W. Kieffer, in Stable Isotope Geochemistry: A Tribute to Samuel Epstein, H. P. Taylor Jr, J. R. O'Neil, I. R. Kaplan, Eds. (Geochem. Soc. Spec. Pub. No. 3, 1991), pp. 3–10.
20
Clayton R. N., Onuma N., Mayeda T. K., A classification of meteorites based on oxygen isotopes. Earth Planet. Sci. Lett. 30, 10 (1976).
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Published In
Science
Volume 333 | Issue 6046
26 August 2011
26 August 2011
Copyright
Copyright © 2011, American Association for the Advancement of Science.
Submission history
Received: 2 May 2011
Accepted: 1 August 2011
Published in print: 26 August 2011
Acknowledgments
Acknowledgments: We thank the Hayabusa sample curation team and the Hayabusa project team for close cooperation. This study was supported by the Monka-sho grant (H.Y.) and by the NASA Muses-CN/Hayabusa Program (M.E.Z.).
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