Science Advances

Supplementary Materials

The PDF file includes:

  • Supplementary Text
  • Fig. S1. Bedrock type and lineations across Inglefield Land near Hiawatha Glacier.
  • Fig. S2. Terminus history of Hiawatha Glacier and its transition from a floating to a grounded tongue with a proglacial floodplain.
  • Fig. S3. CI-chondrite–normalized metal patterns for glaciofluvial sediment samples compared to upper continental crust.
  • Fig. S4. Model mixtures of crust with mass proportions of various meteorites.
  • Fig. S5. Radar reflectivity at the six deep Greenland ice-core sites, as measured by predecessor radar systems to that used for the Hiawatha Glacier survey.
  • Fig. S6. Relationships between surface and radar layering.
  • Fig. S7. Supraglacial drainage of Hiawatha Glacier.
  • Table S1. Location and description of Hiawatha glaciofluvial sediment samples.
  • Legends for Movies S1 to S3
  • Legends for Data files S1 and S2
  • References (41–44)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). The 2016 AWI airborne radar survey over Hiawatha Glacier.
  • Movie S2 (.mp4 format). Operation IceBridge radar surveys across the Greenland Ice Sheet.
  • Movie S3 (.mp4 format). Operation IceBridge radar surveys toward Hiawatha Glacier.
  • Data file S1 (Microsoft Excel format). EMP data for grains studied from HW21-2016 samples.
  • Data file S2 (Microsoft Excel format). Major element, trace element, and PGE concentrations for subsamples and sub-subsamples of HW21-2016.

Files in this Data Supplement: