Combined in situ XRF–LIBS analyses as a novel method to determine the provenance of central Mediterranean obsidiansIlaria Costantini, Marco Veneranda, Nagore Prieto-Taboada, Anna Maria De Francesco, Kepa Castro, Juan Manuel Madariaga and Gorka AranaEur. Phys. J. Plus, 138 7 (2023) 603DOI: https://doi.org/10.1140/epjp/s13360-023-04218-4