Because of its sensitivity for detrital dolomite, the Ca/Sr ratio of sediment core GeoB18530-1 was previously used to identify Heinrich Event layers (doi:10.1594/PANGAEA.943557 and doi:10.1594/PANGAEA.943556). As Ca/Sr is also influenced by marine sedimentation, the relative Ca/Si and Sr/Si variations given here allow assessing the detrital vs. marine carbonate mixing system. We newly introduce the K/Fe ratio as proxy for the volumetrically and magnetically very relevant granitic IRD deposition and support this interpretation by comparing K/Si and Fe/Si ratios. The element data presented here were acquired with the MARUM Aavatech XRF Scanner at acceleration voltages of 10 kV, 30 kV and 50 kV (Max et al., 2022). All six element ratios, which were initially scaled in peak area units, have been normalized to their interlayer means in order to facilitate the quantitative unmixing of HL-related and -unrelated sediment fractions. The magnetic susceptibility estimate derived by multiple regression from Ca/Sr and K/Fe ratios is contained in the model data set doi:10.1594/PANGAEA.971771.

Corresponds to Figure 2.