<p dir="ltr">Supplementary data to the paper: 'Identification of a primordial high D/H component in the matrix of unequilibrated ordinary chondrites' which is currently pending publication. A a link to the paper will be added to this record following its publication. Included in this folder is:</p><ul><li>TS1_EPMA_standards.xlsx - Data file containing standards used for EPMA analyses (Table S1).</li><li>TS2_EPMA_data.xlsx - Data file containing all valid EPMA data points for all UOCs across a range of matrix regions is given.</li><li>TS3_SIMS_Standards.xlsx - Data file containing standards used for D/H calibration.</li><li>TS4_SIMS_sata.xlsx - Data file containing all valid SIMS data points for all samples and standards, including calibrated D/H ratios.</li><li>Plots - Folder containing supplementary plots and (where available) interactive plots from the main paper.</li></ul><p><br></p>