Science Advances

Supplementary Materials

The PDF file includes:

  • Supplementary Text
  • Fig. S1. Distribution of equilibrated ordinary chondritic chromite (EC) grains through the Hällekis-Thorsberg section.
  • Fig. S2. High-resolution 187Os/188Os isotope profile across a proposed discontinuity surface.
  • Fig. S3. The gray Täljsten in the Degerhamn Quarry, southern Öland.
  • Fig. S4. Cystoid echinoderms in the Likhall bed of the Täljsten.
  • Fig. S5. Distribution of extraterrestrial chromite across the Lynna River section.
  • Fig. S6. Map of Antarctic micrometeorite localities.
  • Fig. S7. Back-scattered electron images of Antarctic micrometeorites.
  • Fig. S8. Size distribution of Antarctic micrometeorites.
  • Table S1. Chrome-spinel distribution through the Hällekis-Thorsberg section.
  • Table S2. Extraterrestrial chromite division below reference level in Hällekis section.
  • Table S3. Extraterrestrial chromite division above reference level in Thorsberg section.
  • Table S4. Published abundances of micrometeorite types from different collections.
  • Table S5. Poynting-Robertson transfer times (Ma) from the outer solar system to Earth.
  • References (6088)

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Other Supplementary Material for this manuscript includes the following:

  • Data file S1 (.pdf format). Hällekis-Thorsberg section—chrome-spinel chemical results.
  • Data file S2 (Microsoft Excel format). Helium isotope data.
  • Data file S3 (Microsoft Excel format). Osmium isotope data.
  • Data file S4 (Microsoft Excel format). Spinels in Antarctic micrometeorite.
  • Data file S5 (.pdf format). Lynna River section—chrome-spinel chemical results.

Files in this Data Supplement: