Spatiotemporal changes in riverine input into the Eocene North Sea revealed by strontium isotope and barium analysis of bivalve shells

Extended data and calculations belonging to this study are summarized in the supplementary material. These supplements contain the following supplementary data files: Supplementary material: supplementary Figure S1 Supplementary data 1: Element and isotope data for each individual shell Supplementary data 2: 87Sr/86Sr salinity variability reconstruction Supplementary data 3: Stratigraphy for sampling locations Supplementary data 4: 87Sr/86Sr data for recent oyster shells Supplementary data 5: Extended strontium isotope data