(Supplement EA1) Elements, Neodymium and Hafnium analysis on lavas from Nevado de Toluca@en

Major elements were determined by X-ray fluorescence spectroscopy (XRF) using a Siemens SRS-3000 instrument in the Laboratorio Universitario de Geoquímica Isotópica (LUGIS), UNAM, using procedures of Lozano and Bernal (2005). Trace element concentrations were determined using Thermo Scientific Electron X-series ICP-MS (Inductively Coupled Plasma Mass Spectrometer) at the Centro de Geociencias (CGEO), UNAM-Querétaro, following sample preparation and measurement procedures described by Mori et al., (2007; doi:10.1016/j.chemgeo.2007.07.002). […]