Supplementary material for "Long-term variations in palaeoenvironmental conditions in the Western Tethys during the late Aptian–late Cenomanian time interval: from an unstable to a stable ocean"

Excel file in xlsx format which include a table with major and trace element data for the Monte Petrano and Piobbico Core records. Samples (285) were analyzed for elemental concentrations by X-ray fluorescence analysis (XRF). About 700 mg of sample powder were mixed with 4200 mg lithium tetraborate, pre-oxidized in an oven at 500 °C overnight with NH4NO3 and then fused to glass beads. The beads were analyzed by a wave-length dispersive X-ray fluorescence (WD-XRF) spectrometer equipped with a rhodium tube (Axios Plus, Panalytical®). XRF measurements are based on a calibration with 48 certified and 7 in-house international reference samples covering a wide range in composition. Analytical precision, checked using in-house standards, is better than 1% for Si, Ti, Al, Fe, Mg, Mn, Ca, K, P, Sr, 2% for Ba, Cr, Cu, Mo, Ni, Rb, V, Zn, Zr, and better than 5% for Na and Y, except As, Co, Pb (5–10%).