Robustelli Test et al. (2024) Supplementary material Table 1 as an Excel file includes the splice sections that were scanned from IODP Expeditions 390 & 393, Site U1559. Hole indicates the holes that were used in the splice, and the target resolution column indicates the resoution (cm) for which the sections were scanned. Robustelli Test et al. (2024) Supplementary material Table 2 as an Excel file includes the XRF elemental counts measured at 10kV Robustelli Test et al. (2024) Supplementary material Table 3 as an Excel file includes the XRF elemental counts measured at 30kV Robustelli Test et al. (2024) Supplementary material Table 4 as an Excel file includes the XRF elemental counts measured at 50kV