Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Materials and Methods
  • Fig. S1. Comparisons of some ETH AMS 14C data on known-age Mediterranean samples versus Hd data and IntCal98 and IntCal04/09.
  • Fig. S2. Comparison of Hd GeO LLGPC measurements (38) with OxA AMS 14C measurements on similar GeO (24).
  • Fig. S3. Comparison of the OxA AMS 14C measurements versus Hd LLGPC measurements on Anatolian juniper samples from a Middle Bronze Age dendrochronological time series built from Juniperus sp. samples from the archaeological sites of Kültepe, Acemhöyük, and Karahöyük (46).
  • Fig. S4. Comparison of Keck Carbon Cycle Accelerator Mass Spectrometry Laboratory, University of California, Irvine AMS 14C dates on known-age BCP (40) versus similar known-age GeO Hd LLGPC 14C data (38).
  • Fig. S5. Comparison of AMS 14C data versus Hd LLGPC 14C ages for similar Swedish pine.
  • Fig. S6. Cross-dating grid for the NOC Quercus sp. chronology.
  • Fig. S7. The indexed tree ring series comprising the NOC Quercus sp. chronology.
  • Fig. S8. The tree ring measurements of the NOC-12 and NOC-14 samples within the NOC chronology.
  • Table S1. 14C data used in this paper for Figs. 1 to 3 and figs. S1 and S5.
  • Table S2. The nine offset periods identified in Fig. 2A.
  • References (60152)

Download PDF

Files in this Data Supplement: