Merino-Tomé, Oscar Gutiérrez-Alonso, Gabriel Villa, Elisa Fernández-Suárez, Javier Martín Llaneza, Jaime Hofmann, Mandy SP Fig. 2. LA-ICP-MS U–Pb dating of Carboniferous ash layers in the Cantabrian Zone (N Spain): stratigraphic implications SP FIg. 2. Stratigraphic section of the Santo Firme Coalfield reconstructed using information from IGME (1984) and Trell (1988). Fusuline Zones from Villa & Merino-Tomé (2016), palynologic Zones from Horvarth (1985) and stages and substages of Western European regional scale and Uralsare indicated. IGME;Cantabrian Zone;SP;Carboniferous ash layers;sp Fig;LA-ICP-MS;2. Stratigraphic section;Santo Firme Coalfield;Geology 2017-05-02
    https://geolsoc.figshare.com/articles/journal_contribution/SP_Fig_2_LA-ICP-MS_U_Pb_dating_of_Carboniferous_ash_layers_in_the_Cantabrian_Zone_N_Spain_stratigraphic_implications/4959893
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