Science Advances

Supplementary Materials

This PDF file includes:

  • Table S1. Sample OSL ages and dose rate data.
  • Table S2. Radon loss effects on each Gault OSL sample.
  • Table S3. Summary of the Gault Assemblage.
  • Table S4. Summary counts of the Gault biface assemblage.
  • Fig. S1. A representative decay curve (upper), growth curve (middle), and plot showing sensitivity changes through the SAR cycle (lower) for Gault 11-18.
  • Fig. S2. Equivalent dose (De) distributions for all samples displayed in a histogram (left) and radial plot (right).
  • Fig. S3. Location of the Area 15 excavation block and the excavation grid and profile.
  • Fig. S4. Relationship between the stratigraphy and cultural components in Area 15.
  • Fig. S5. Results of the geoarcheological analysis of the sediments in Area 15.
  • Fig. S6. Andice projectile point (left) with representative diagnostic notching flakes (right).
  • Fig. S7. Backplots of northing (blue) and easting (red) profiles showing the elevation of diagnostic Andice notching flakes and the cultural components discussed in the text.
  • Fig. S8. Limestone bedrock of Area 15, with three sets of flutes scoured into the limestone (discussed in the text).
  • Fig. S9. Pollen data from Boriack Bog and the NGRIP and GRIP ice core record as compared to stratigraphic units at Area 15.
  • Fig. S10. Gault Assemblage stone tool types and frequency (see table S2).
  • Fig. S11. Gault Assemblage projectile points.
  • Fig. S12. Principal components analysis of the Gault Assemblage stemmed projectile points and the Gower and Uvalde types.
  • Section S1. Area 15 stratigraphy
  • Section S2. Context of early dates in North America
  • Section S3. Gault Assemblage in Area 15
  • References (4385)

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