Supplementary Data to 'Assessment of chalk as an archive for the lithium isotope composition of seawater'

This is the Supporting Information S1 of the article: ‘Assessment of chalk as an archive for the lithium isotope composition of seawater’, published in the Journal Geochemistry, Geophysics, Geosystems in 2024.Text and Figure S1 provide information about the calibration of the column chemistry with a carbonate sample.Table S1-S3 provide further sample information and the measuring results (δ7Li, [Li] and E/Ca ratios) for all samples used in the study.