Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-26T04:06:16.943Z Has data issue: false hasContentIssue false
  • English
  • Français

Constraints on the Origin of the Solar System from Meteorites

Published online by Cambridge University Press:  25 May 2016

J. D. Gilmour
J. D. Gilmour*
Affiliation:
Department of Earth Sciences, University of Manchester, Manchester M13 9PL, UK

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Primitive meteorites have preserved material that was present in the presolar nebula and record processes that occurred as evolution proceeded from the earliest solids. The discovery of isotopic anomalies in these samples led to the isolation of presolar grains and allowed the presence of short-lived radionuclides in the early solar system to be inferred. Isotopic anomalies in oxygen may reflect non-linear chemical fractionation rather than a nuclear effect, but the theory is as yet insufficiently developed to be rigorously assessed.

Analyses of individual SiC and refractory oxide presolar grains reveal that a large number of distinct nucleosynthetic sites contributed material to the solar nebula, and much progress has been made in identifying the various environments in which they formed. Isotopic anomalies associated with nanometre-size diamonds are best explained by supernova nucleosynthesis but it is clear that several sub-populations exist.

The extinct nuclides 26Al, 53Mn and 129I have each been used to establish the relative timing of events in the formation of the solar system. Calibrations of the Mn-Cr and I-Xe systems against the Pb-Pb system (based on decay of uranium isotopes) have been proposed, and Al-Mg data can be included through a calibration with the I-Xe scheme. Assuming these calibrations to be valid allows a tentative chronology of the early solar system to be developed, the plausibility of which can be seen as a test of the calibrations. In this chronology, the first solids to form in the solar system were refractory inclusions. Chondrules (rapidly cooled silicate droplets) appear to have formed later than CAIs over a period of a few million years. Parent body processing began early in solar system history and was ongoing as chondrules formed.

Type
Part 10. Inner Solar Nebula, Meteorites and IDPs
Information
Symposium - International Astronomical Union , Volume 197: Astrochemistry: From Molecular Clouds to Planetary Systems , 2000 , pp. 515 - 526
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Akridge, D.G. & Sears, D.W.G. 1999, J. Geophys. Res, 104, 11, 853 Google Scholar
Brazzle, R.H., Davis, A.M., MacPherson, G.J., & Hohenberg, C.M. 1996, Meteoritics, 31, A21 Google Scholar
Brazzle, R.H., Pravdivtseva, O.V., Meshik, A.P., & Hohenberg, C.M. 1999, Geochim. Cosmochim. Acta, 63, 739 Google Scholar
Brearley, A.J. 1993, Geochim. Cosmochim. Acta, 57, 1521 Google Scholar
Clayton, R.N. 1993, Annu. Rev. Earth Planet. Sci., 21, 115 Google Scholar
Crabb, J. & Schultz, L. 1981, Geochim. Cosmochim. Acta, 45, 2151 Google Scholar
Endress, M., Zinner, , & Bischoff, A. 1996, Nature, 379, 701 CrossRefGoogle Scholar
Gilmour, J.D., Whitby, J.A., Turner, G., Bridges, J.C., & Hutchison, R. 1999, Meteoritics, (submitted) Google Scholar
Göpel, C., Manhès, G., & Allègre, C.J. 1994, Earth Planet. Sci. Lett, 121, 153 Google Scholar
Hewins, R.H., Jones, R.H., & Scott, E.R. D., eds. 1996, Chondrules and the Protoplanetary Disk (Cambridge University Press: Cambridge)Google Scholar
Hutchison, R.H., Williams, C.T., Din, V.K., Clayton, R.N., Kirschbaum, C., Paul, R.L., & Lipschutz, M.E. 1988, Earth Planet. Sci. Lett., 90, 105 Google Scholar
Kerridge, J.F. & Matthews, M.S., eds. 1988, Meteorites and the Early Solar System (University of Arizona: Tucson)Google Scholar
Lee, T., Shu, F.H., Shang, H., Glassgold, A.E., & Rehm, K.E. 1999, ApJ, 506, 898 Google Scholar
Lewis, R.S. & Anders, E. 1975, Proc. Nat. Acad. Sci. USA, 72, 268 Google Scholar
Lugmair, G.W. & Shukolyukov, A. 1998, Geochim. Cosmochim. Acta, 62, 2863 Google Scholar
MacPherson, G.J., Davis, A.M., & Zinner, E.K. 1995, Meteoritics, 30, 365 Google Scholar
McSween, H.Y. Jr. 1999, Meteorites and Their Parent Planets (Cambridge University Press: Cambridge)Google Scholar
Meshik, A.P., Pravdivtseva, O.V., & Hohenerg, C.M. 1998, Meteoritics, 33, A106 Google Scholar
Minster, J.F., Birck, J.L., & Allègre, C.J. 1982, Nature, 300, 414 Google Scholar
Nichols, R.H. Jr., Hohenberg, C.M., Kehm, K., Kim, Y., & Marti, K. 1994, Geochim. Cosmochim. Acta, 58, 2553 Google Scholar
Nyquist, L., Lindstrom, D., Shih, C.-Y., Wiesmann, H., Mittlefehldt, D., Wentworth, S., & Martinez, R. 1997, Proc. Lunar Planet. Sci. Conf., XXVII, 1093 Google Scholar
Podosek, F.A. & Nichols, R.H. Jr. 1997, in Astrophysical Implications of the Laboratory Study of Presolar Materials, eds. Bernatowicz, T.J. & Zinner, E., AIP Conf. Proc., 402, 617 Google Scholar
Pravdivtsva, O.V. & Hohenberg, C.M. 1999, Proc. Lunar Planet. Sci. Conf. XXX, abstract #2047 Google Scholar
Russell, S.S., Srinivasan, G., Huss, G.R., Wasserburg, G.J., & MacPherson, G.J. 1996, Science, 273, 757 Google Scholar
Sears, D.W.G., Grossman, J.N., Melcher, C.L., Ross, L.M., & Mills, A.A. 1980, Nature, 287, 791 Google Scholar
Srinivasan, G., Goswami, J.N., & Bhandari, N. 1999, Science, 284, 1349 Google Scholar
Swindle, T.D., Caffee, M.W., Hohenberg, C.M., Lindstrom, M.M., & Taylor, G.J. 1991, Geochim. Cosmochim. Acta, 55, 861 Google Scholar
Ott, U. 1996, ApJ, 463, 344 Google Scholar
Thiemens, M.H. 1999, Science, 283, 341 Google Scholar
Van Schmus, W.R. & Wood, J.A. 1967, Geochim. Cosmochim. Acta, 31, 747 Google Scholar
Verchovsky, A.B., Fisenko, A.V., Semjonova, L.F., Wright, I.P., Lee, M.R., & Pillinger, C.T. 1998, Science, 281, 116 CrossRefGoogle Scholar
Whitby, J.A., Gilmour, J.D., Turner, G., & Ash, R.D. 1998, Geochim. Cosmochim. Acta, submitted Google Scholar
Zinner, E. 1997, in Astrophysical Implications of the Laboratory Study of Presolar Materials, eds. Bernatowicz, T.J. & Zinner, E., AIP Conf. Proc., 402, 3 Google Scholar
Zinner, E. & Göpel, C. 1992, Meteoritics, 27, 311 Google Scholar