Aerosol extraction and the direct laser ablation ICP-MS analysis of the fine and ultrafine fractions of regolith Paul A. Morris Alex Christ Edward J. Mikucki 10.6084/m9.figshare.8428184.v1 https://geolsoc.figshare.com/articles/dataset/Aerosol_extraction_and_the_direct_laser_ablation_ICP-MS_analysis_of_the_fine_and_ultrafine_fractions_of_regolith/8428184 Aerosol digital data. Run = indicates which session analysis was undertaken. Sample = analytical medium. Regolith = broad regolith type based on regolith mapping and chemistry of the 0.45 − 2 mm fraction (Morris <i>et al.</i> 1997). Impactor = diameter of impactor (µm) used in individual run. Duration = run time in minutes. Negative concentration = value < designated lower level of detection (LLD). All concentrations in ppm (parts per million). 2019-07-02 14:16:10 session analysis laser ablation ICP-MS analysis Aerosol extraction regolith type LLD ultrafine fractions regolith Aerosol Negative concentration regolith mapping Geology