Oxygen Isotopes and the Moon-Forming Giant Impact

  title={Oxygen Isotopes and the Moon-Forming Giant Impact},
  author={U. Wiechert and A. Halliday and D. Lee and G. A. Snyder and L. A. Taylor and D. Rumble},
  pages={345 - 348}
  • U. Wiechert, A. Halliday, +3 authors D. Rumble
  • Published 2001
  • Materials Science, Medicine
  • Science
  • We have determined the abundances of 16O,17O, and 18O in 31 lunar samples from Apollo missions 11, 12, 15, 16, and 17 using a high-precision laser fluorination technique. All oxygen isotope compositions plot within ±0.016 per mil (2 standard deviations) on a single mass-dependent fractionation line that is identical to the terrestrial fractionation line within uncertainties. This observation is consistent with the Giant Impact model, provided that the proto-Earth and the smaller impactor planet… CONTINUE READING

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