Geochronological results. LA-ICP-MS U–Pb dating of Carboniferous ash layers in the Cantabrian Zone (N Spain): stratigraphic implications Merino-ToméOscar Gutiérrez-AlonsoGabriel VillaElisa Fernández-SuárezJavier Martín LlanezaJaime HofmannMandy 2017 SP Table 1. Geochronological results. Concordant ages obtained through LA-ICP-MS.