Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. 176Hf/177Hf ratios normalized to the expected (present-day) value for standard zircons versus the magnitude of the peak stripping due to interfering Yb, measured as 173Yb+/177Hf +.
  • fig. S2. Initial 176Hf/177Hf of Apollo 14 zircons versus absolute time (My) and time after the start of the solar system calcium- and aluminum-rich inclusions (CAIs) in millions of years.
  • fig. S3. Hf model age variations depending on the 176Lu/177Hf ratios for the source.
  • fig. S4. KREEP 176Lu/177Hf evolutions through decreasing melt percent, as given by pMELTS simulations.
  • References (58, 59)

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Other Supplementary Material for this manuscript includes the following:

  • table S1A (Microsoft Excel format). U-Pb isotopic data (zircons also measured for Hf isotope composition and used for the determination of the age of the Moon).
  • table S1B (Microsoft Excel format). U-Pb isotopic data (zircons not measured for Hf isotope composition).
  • table S2 (Microsoft Excel format). Tuning parameters of the coupled Cetac “Aridus II” and ThermoFinnigan Neptune MC-ICPMS.
  • table S3A (Microsoft Excel format). Hf isotopic data and model age calculations for lunar zircons.
  • table S3B (Microsoft Excel format). Summary of Hf isotopes measured on terrestrial standards.

Files in this Data Supplement: