10.1594/PANGAEA.932968Sakamoto, TatsuhikoTatsuhikoSakamotoRavelo, Ana ChristinaAna ChristinaRavelo0000-0003-3929-677XKnudson, Karla PKarla PKnudson0000-0002-1020-3042PANGAEA2021Bering Seaelement ratiosFe/SFe/TiHigh resolutionIODPIODP Exp. 323laminatedNorth PacificSi/TiX-ray fluorescenceX-ray fluorescence scanningXRFEvent labelLatitude of eventLongitude of eventSample code/labelDepth, correctedSection Top in meters below surfaceOffsetDepth, compositeAGEMaterialSiliconSilicon dioxideSulfurTitaniumTitanium dioxideIronIron oxide, Fe2O3Electric currentIron/Sulfur ratioSilicon/Titanium ratioIron/Titanium ratioDrilling/drill rigDSDP/ODP/IODP sample designationX-ray fluorescence (XRF)CalculatedExp323Joides ResolutionDataset10.1126/sciadv.abg2906196768 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalWe present new high resolution records of elemental ratios from Integrated Ocean Drilling Program Expedition 323 Site U1342 in the Bering Sea. Sediment cores measured by non-disruptive XRF with the TATSCAN-F2 at the Japan Agency for Marine-Earth Technology in 2009. Si/Ti, Fe/Ti, and Fe/S ratios were calculated based on the mass measurements (at 0.50 cm resolution) of each of these elements. XRF measurements are likely not greatly affected by water attenuation, since precautions were taken to scan IODP cores after they had been opened and were no longer damp. Core tops (including the B/A laminated interval at this site) may be an exception for XRF reliability, as they are relatively soft and have greatest porosity and water content. In Knudson et al. (2021, Science Advances), Fe/Ti ratios were used to look at a possible change in iron source, and Si/Ti ratios were used as a proxy for biogenic opal deposition. This instrument, analytical methods, precision, and accuracy are described in detail in Sakamoto et al., 2006: T. Sakamoto, K. Kuroki, T. Sugawara, K. Aoike, K. Iijima, S. Sugisaki, Non-destructive X-ray fluorescence (XRF) core-imaging scanner, TATSCAN-F2. Sci. Drill 2, 37-39 (2006).176.91671166667176.9170533333354.82831166666754.828361666667