Fig. S5: Biotite Mg/Mg+Fe+Mn vs K+Na+Ca diagram of P2 ash layers. Chemical and petrographic fingerprinting of volcanic ashes as a tool for high-resolution stratigraphy of the upper Miocene Pisco Formation (Peru)

Fig. S5: Biotite Mg/Mg+Fe+Mn vs K+Na+Ca diagram of P2 ash layers.