RE-CALIBRATED ELEMENTAL COMPOSITION DATA FROM CURIOSITY/CHEMCAM

ChemCam on Curiosity provides a large and varied geochemical dataset available for the planetary community that includes elemental compositions from more than 6,000 individual points on over 1,000 geological targets along the roverโ€™s traverse.

The ChemCam team has recently completed a new calibration model that provides significantly more accurate results for the major element abundances. While the previous calibration model provided good results for fine-grained sedimentary targets near the average Mars composition, the new calibration increases the accuracy overall and provides significant improvements to mineral end-members, particularly silica-rich observations such as those of plagioclase. The re-calibrated ChemCam data are now available on the Planetary Data System server at http://pds-geosciences.wustl.edu/msl/msl-m-chemcam-libs-4_5-rdr-v1/mslccm_1xxx/data/moc/.