<p dir="ltr">Secondary Ion Mass Spectrometry (SIMS) data for regions of matrix in unequilibrated ordinary chondrites (UOCs). Included in this folder is:</p><ul><li>20221010-raw-HDCSi.xls - data file containing all individual SIMS data points, including discarded. Each measurement is comprised of ~ 30 cycles, where individual cycle data can be found in the respective page with the same measurement number.</li><li>20221010-HDCSi-process.xls - data file containing calibration calculations, as determined by standards.</li><li>Standards (.ods and .xlsx) - data file containing information on standards used, including sources, mean measurements, and known measurements.</li><li>SIMS-Data-Processed.xlsx - data file containing processed SIMS data of only valid measurements, including calibrated δD, C (wt%), H<sub>2</sub>O (wt%), and calculated D/H<sub>H2O</sub></li><li>Raw Data - folder containing ascii files of the raw measurement data for each data point.</li><li>Positions - folder containing visible light images of the position for each data measurement, where the dark square at the centre of the image is the position of the measurement.</li><li>Plots - Folder containing (where available) interactive plots.</li></ul><p><br></p>