In situ U-Pb carbonate dating by fs-LA-ICP-MS imaging combined with a virtual spot approach data treatment.
Résumé
Although U-Pb dating by LA-ICP-MS begun in the early 2010’s, the use of imaging to date calcite samples has only appeared in 2018 with the paper from Drost et al. (Geochemistry,
Geophysics, Geosystems, 2018, 19, 4631–4648 https://doi.org/10.1029/2018GC007850). This approach allows identifying areas of interest (rich in U) as well as impurities that has to be discarded. The dating is then based on extracting the age from LA-ICP-MS mapping using different pixel selection or subsets.